+
+## Install
+
+```
+$ npm install ansi-styles
+```
+
+## Usage
+
+```js
+const style = require('ansi-styles');
+
+console.log(`${style.green.open}Hello world!${style.green.close}`);
+
+
+// Color conversion between 16/256/truecolor
+// NOTE: If conversion goes to 16 colors or 256 colors, the original color
+// may be degraded to fit that color palette. This means terminals
+// that do not support 16 million colors will best-match the
+// original color.
+console.log(style.bgColor.ansi.hsl(120, 80, 72) + 'Hello world!' + style.bgColor.close);
+console.log(style.color.ansi256.rgb(199, 20, 250) + 'Hello world!' + style.color.close);
+console.log(style.color.ansi16m.hex('#abcdef') + 'Hello world!' + style.color.close);
+```
+
+## API
+
+Each style has an `open` and `close` property.
+
+## Styles
+
+### Modifiers
+
+- `reset`
+- `bold`
+- `dim`
+- `italic` *(Not widely supported)*
+- `underline`
+- `inverse`
+- `hidden`
+- `strikethrough` *(Not widely supported)*
+
+### Colors
+
+- `black`
+- `red`
+- `green`
+- `yellow`
+- `blue`
+- `magenta`
+- `cyan`
+- `white`
+- `blackBright` (alias: `gray`, `grey`)
+- `redBright`
+- `greenBright`
+- `yellowBright`
+- `blueBright`
+- `magentaBright`
+- `cyanBright`
+- `whiteBright`
+
+### Background colors
+
+- `bgBlack`
+- `bgRed`
+- `bgGreen`
+- `bgYellow`
+- `bgBlue`
+- `bgMagenta`
+- `bgCyan`
+- `bgWhite`
+- `bgBlackBright` (alias: `bgGray`, `bgGrey`)
+- `bgRedBright`
+- `bgGreenBright`
+- `bgYellowBright`
+- `bgBlueBright`
+- `bgMagentaBright`
+- `bgCyanBright`
+- `bgWhiteBright`
+
+## Advanced usage
+
+By default, you get a map of styles, but the styles are also available as groups. They are non-enumerable so they don't show up unless you access them explicitly. This makes it easier to expose only a subset in a higher-level module.
+
+- `style.modifier`
+- `style.color`
+- `style.bgColor`
+
+###### Example
+
+```js
+console.log(style.color.green.open);
+```
+
+Raw escape codes (i.e. without the CSI escape prefix `\u001B[` and render mode postfix `m`) are available under `style.codes`, which returns a `Map` with the open codes as keys and close codes as values.
+
+###### Example
+
+```js
+console.log(style.codes.get(36));
+//=> 39
+```
+
+## [256 / 16 million (TrueColor) support](https://gist.github.com/XVilka/8346728)
+
+`ansi-styles` uses the [`color-convert`](https://github.com/Qix-/color-convert) package to allow for converting between various colors and ANSI escapes, with support for 256 and 16 million colors.
+
+The following color spaces from `color-convert` are supported:
+
+- `rgb`
+- `hex`
+- `keyword`
+- `hsl`
+- `hsv`
+- `hwb`
+- `ansi`
+- `ansi256`
+
+To use these, call the associated conversion function with the intended output, for example:
+
+```js
+style.color.ansi.rgb(100, 200, 15); // RGB to 16 color ansi foreground code
+style.bgColor.ansi.rgb(100, 200, 15); // RGB to 16 color ansi background code
+
+style.color.ansi256.hsl(120, 100, 60); // HSL to 256 color ansi foreground code
+style.bgColor.ansi256.hsl(120, 100, 60); // HSL to 256 color ansi foreground code
+
+style.color.ansi16m.hex('#C0FFEE'); // Hex (RGB) to 16 million color foreground code
+style.bgColor.ansi16m.hex('#C0FFEE'); // Hex (RGB) to 16 million color background code
+```
+
+## Related
+
+- [ansi-escapes](https://github.com/sindresorhus/ansi-escapes) - ANSI escape codes for manipulating the terminal
+
+## Maintainers
+
+- [Sindre Sorhus](https://github.com/sindresorhus)
+- [Josh Junon](https://github.com/qix-)
+
+## For enterprise
+
+Available as part of the Tidelift Subscription.
+
+The maintainers of `ansi-styles` and thousands of other packages are working with Tidelift to deliver commercial support and maintenance for the open source dependencies you use to build your applications. Save time, reduce risk, and improve code health, while paying the maintainers of the exact dependencies you use. [Learn more.](https://tidelift.com/subscription/pkg/npm-ansi-styles?utm_source=npm-ansi-styles&utm_medium=referral&utm_campaign=enterprise&utm_term=repo)
diff --git a/node_modules/array-flatten/LICENSE b/node_modules/array-flatten/LICENSE
new file mode 100644
index 00000000..983fbe8a
--- /dev/null
+++ b/node_modules/array-flatten/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2014 Blake Embrey (hello@blakeembrey.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/node_modules/array-flatten/README.md b/node_modules/array-flatten/README.md
new file mode 100644
index 00000000..91fa5b63
--- /dev/null
+++ b/node_modules/array-flatten/README.md
@@ -0,0 +1,43 @@
+# Array Flatten
+
+[![NPM version][npm-image]][npm-url]
+[![NPM downloads][downloads-image]][downloads-url]
+[![Build status][travis-image]][travis-url]
+[![Test coverage][coveralls-image]][coveralls-url]
+
+> Flatten an array of nested arrays into a single flat array. Accepts an optional depth.
+
+## Installation
+
+```
+npm install array-flatten --save
+```
+
+## Usage
+
+```javascript
+var flatten = require('array-flatten')
+
+flatten([1, [2, [3, [4, [5], 6], 7], 8], 9])
+//=> [1, 2, 3, 4, 5, 6, 7, 8, 9]
+
+flatten([1, [2, [3, [4, [5], 6], 7], 8], 9], 2)
+//=> [1, 2, 3, [4, [5], 6], 7, 8, 9]
+
+(function () {
+ flatten(arguments) //=> [1, 2, 3]
+})(1, [2, 3])
+```
+
+## License
+
+MIT
+
+[npm-image]: https://img.shields.io/npm/v/array-flatten.svg?style=flat
+[npm-url]: https://npmjs.org/package/array-flatten
+[downloads-image]: https://img.shields.io/npm/dm/array-flatten.svg?style=flat
+[downloads-url]: https://npmjs.org/package/array-flatten
+[travis-image]: https://img.shields.io/travis/blakeembrey/array-flatten.svg?style=flat
+[travis-url]: https://travis-ci.org/blakeembrey/array-flatten
+[coveralls-image]: https://img.shields.io/coveralls/blakeembrey/array-flatten.svg?style=flat
+[coveralls-url]: https://coveralls.io/r/blakeembrey/array-flatten?branch=master
diff --git a/node_modules/array-flatten/array-flatten.js b/node_modules/array-flatten/array-flatten.js
new file mode 100644
index 00000000..089117b3
--- /dev/null
+++ b/node_modules/array-flatten/array-flatten.js
@@ -0,0 +1,64 @@
+'use strict'
+
+/**
+ * Expose `arrayFlatten`.
+ */
+module.exports = arrayFlatten
+
+/**
+ * Recursive flatten function with depth.
+ *
+ * @param {Array} array
+ * @param {Array} result
+ * @param {Number} depth
+ * @return {Array}
+ */
+function flattenWithDepth (array, result, depth) {
+ for (var i = 0; i < array.length; i++) {
+ var value = array[i]
+
+ if (depth > 0 && Array.isArray(value)) {
+ flattenWithDepth(value, result, depth - 1)
+ } else {
+ result.push(value)
+ }
+ }
+
+ return result
+}
+
+/**
+ * Recursive flatten function. Omitting depth is slightly faster.
+ *
+ * @param {Array} array
+ * @param {Array} result
+ * @return {Array}
+ */
+function flattenForever (array, result) {
+ for (var i = 0; i < array.length; i++) {
+ var value = array[i]
+
+ if (Array.isArray(value)) {
+ flattenForever(value, result)
+ } else {
+ result.push(value)
+ }
+ }
+
+ return result
+}
+
+/**
+ * Flatten an array, with the ability to define a depth.
+ *
+ * @param {Array} array
+ * @param {Number} depth
+ * @return {Array}
+ */
+function arrayFlatten (array, depth) {
+ if (depth == null) {
+ return flattenForever(array, [])
+ }
+
+ return flattenWithDepth(array, [], depth)
+}
diff --git a/node_modules/array-flatten/package.json b/node_modules/array-flatten/package.json
new file mode 100644
index 00000000..1a24e2a1
--- /dev/null
+++ b/node_modules/array-flatten/package.json
@@ -0,0 +1,39 @@
+{
+ "name": "array-flatten",
+ "version": "1.1.1",
+ "description": "Flatten an array of nested arrays into a single flat array",
+ "main": "array-flatten.js",
+ "files": [
+ "array-flatten.js",
+ "LICENSE"
+ ],
+ "scripts": {
+ "test": "istanbul cover _mocha -- -R spec"
+ },
+ "repository": {
+ "type": "git",
+ "url": "git://github.com/blakeembrey/array-flatten.git"
+ },
+ "keywords": [
+ "array",
+ "flatten",
+ "arguments",
+ "depth"
+ ],
+ "author": {
+ "name": "Blake Embrey",
+ "email": "hello@blakeembrey.com",
+ "url": "http://blakeembrey.me"
+ },
+ "license": "MIT",
+ "bugs": {
+ "url": "https://github.com/blakeembrey/array-flatten/issues"
+ },
+ "homepage": "https://github.com/blakeembrey/array-flatten",
+ "devDependencies": {
+ "istanbul": "^0.3.13",
+ "mocha": "^2.2.4",
+ "pre-commit": "^1.0.7",
+ "standard": "^3.7.3"
+ }
+}
diff --git a/node_modules/async/CHANGELOG.md b/node_modules/async/CHANGELOG.md
new file mode 100644
index 00000000..8a9a1bfd
--- /dev/null
+++ b/node_modules/async/CHANGELOG.md
@@ -0,0 +1,348 @@
+# v3.2.4
+- Fix a bug in `priorityQueue` where it didn't wait for the result. (#1725)
+- Fix a bug where `unshiftAsync` was included in `priorityQueue`. (#1790)
+
+# v3.2.3
+- Fix bugs in comment parsing in `autoInject`. (#1767, #1780)
+
+# v3.2.2
+- Fix potential prototype pollution exploit
+
+# v3.2.1
+- Use `queueMicrotask` if available to the environment (#1761)
+- Minor perf improvement in `priorityQueue` (#1727)
+- More examples in documentation (#1726)
+- Various doc fixes (#1708, #1712, #1717, #1740, #1739, #1749, #1756)
+- Improved test coverage (#1754)
+
+# v3.2.0
+- Fix a bug in Safari related to overwriting `func.name`
+- Remove built-in browserify configuration (#1653)
+- Varios doc fixes (#1688, #1703, #1704)
+
+# v3.1.1
+- Allow redefining `name` property on wrapped functions.
+
+# v3.1.0
+
+- Added `q.pushAsync` and `q.unshiftAsync`, analagous to `q.push` and `q.unshift`, except they always do not accept a callback, and reject if processing the task errors. (#1659)
+- Promises returned from `q.push` and `q.unshift` when a callback is not passed now resolve even if an error ocurred. (#1659)
+- Fixed a parsing bug in `autoInject` with complicated function bodies (#1663)
+- Added ES6+ configuration for Browserify bundlers (#1653)
+- Various doc fixes (#1664, #1658, #1665, #1652)
+
+# v3.0.1
+
+## Bug fixes
+- Fixed a regression where arrays passed to `queue` and `cargo` would be completely flattened. (#1645)
+- Clarified Async's browser support (#1643)
+
+
+# v3.0.0
+
+The `async`/`await` release!
+
+There are a lot of new features and subtle breaking changes in this major version, but the biggest feature is that most Async methods return a Promise if you omit the callback, meaning you can `await` them from within an `async` function.
+
+```js
+const results = await async.mapLimit(urls, 5, async url => {
+ const resp = await fetch(url)
+ return resp.body
+})
+```
+
+## Breaking Changes
+- Most Async methods return a Promise when the final callback is omitted, making them `await`-able! (#1572)
+- We are now making heavy use of ES2015 features, this means we have dropped out-of-the-box support for Node 4 and earlier, and many old versions of browsers. (#1541, #1553)
+- In `queue`, `priorityQueue`, `cargo` and `cargoQueue`, the "event"-style methods, like `q.drain` and `q.saturated` are now methods that register a callback, rather than properties you assign a callback to. They are now of the form `q.drain(callback)`. If you do not pass a callback a Promise will be returned for the next occurrence of the event, making them `await`-able, e.g. `await q.drain()`. (#1586, #1641)
+- Calling `callback(false)` will cancel an async method, preventing further iteration and callback calls. This is useful for preventing memory leaks when you break out of an async flow by calling an outer callback. (#1064, #1542)
+- `during` and `doDuring` have been removed, and instead `whilst`, `doWhilst`, `until` and `doUntil` now have asynchronous `test` functions. (#850, #1557)
+- `limits` of less than 1 now cause an error to be thrown in queues and collection methods. (#1249, #1552)
+- `memoize` no longer memoizes errors (#1465, #1466)
+- `applyEach`/`applyEachSeries` have a simpler interface, to make them more easily type-able. It always returns a function that takes in a single callback argument. If that callback is omitted, a promise is returned, making it awaitable. (#1228, #1640)
+
+## New Features
+- Async generators are now supported in all the Collection methods. (#1560)
+- Added `cargoQueue`, a queue with both `concurrency` and `payload` size parameters. (#1567)
+- Queue objects returned from `queue` now have a `Symbol.iterator` method, meaning they can be iterated over to inspect the current list of items in the queue. (#1459, #1556)
+- A ESM-flavored `async.mjs` is included in the `async` package. This is described in the `package.json` `"module"` field, meaning it should be automatically used by Webpack and other compatible bundlers.
+
+## Bug fixes
+- Better handle arbitrary error objects in `asyncify` (#1568, #1569)
+
+## Other
+- Removed Lodash as a dependency (#1283, #1528)
+- Miscellaneous docs fixes (#1393, #1501, #1540, #1543, #1558, #1563, #1564, #1579, #1581)
+- Miscellaneous test fixes (#1538)
+
+-------
+
+# v2.6.1
+- Updated lodash to prevent `npm audit` warnings. (#1532, #1533)
+- Made `async-es` more optimized for webpack users (#1517)
+- Fixed a stack overflow with large collections and a synchronous iterator (#1514)
+- Various small fixes/chores (#1505, #1511, #1527, #1530)
+
+# v2.6.0
+- Added missing aliases for many methods. Previously, you could not (e.g.) `require('async/find')` or use `async.anyLimit`. (#1483)
+- Improved `queue` performance. (#1448, #1454)
+- Add missing sourcemap (#1452, #1453)
+- Various doc updates (#1448, #1471, #1483)
+
+# v2.5.0
+- Added `concatLimit`, the `Limit` equivalent of [`concat`](https://caolan.github.io/async/docs.html#concat) ([#1426](https://github.com/caolan/async/issues/1426), [#1430](https://github.com/caolan/async/pull/1430))
+- `concat` improvements: it now preserves order, handles falsy values and the `iteratee` callback takes a variable number of arguments ([#1437](https://github.com/caolan/async/issues/1437), [#1436](https://github.com/caolan/async/pull/1436))
+- Fixed an issue in `queue` where there was a size discrepancy between `workersList().length` and `running()` ([#1428](https://github.com/caolan/async/issues/1428), [#1429](https://github.com/caolan/async/pull/1429))
+- Various doc fixes ([#1422](https://github.com/caolan/async/issues/1422), [#1424](https://github.com/caolan/async/pull/1424))
+
+# v2.4.1
+- Fixed a bug preventing functions wrapped with `timeout()` from being re-used. ([#1418](https://github.com/caolan/async/issues/1418), [#1419](https://github.com/caolan/async/issues/1419))
+
+# v2.4.0
+- Added `tryEach`, for running async functions in parallel, where you only expect one to succeed. ([#1365](https://github.com/caolan/async/issues/1365), [#687](https://github.com/caolan/async/issues/687))
+- Improved performance, most notably in `parallel` and `waterfall` ([#1395](https://github.com/caolan/async/issues/1395))
+- Added `queue.remove()`, for removing items in a `queue` ([#1397](https://github.com/caolan/async/issues/1397), [#1391](https://github.com/caolan/async/issues/1391))
+- Fixed using `eval`, preventing Async from running in pages with Content Security Policy ([#1404](https://github.com/caolan/async/issues/1404), [#1403](https://github.com/caolan/async/issues/1403))
+- Fixed errors thrown in an `asyncify`ed function's callback being caught by the underlying Promise ([#1408](https://github.com/caolan/async/issues/1408))
+- Fixed timing of `queue.empty()` ([#1367](https://github.com/caolan/async/issues/1367))
+- Various doc fixes ([#1314](https://github.com/caolan/async/issues/1314), [#1394](https://github.com/caolan/async/issues/1394), [#1412](https://github.com/caolan/async/issues/1412))
+
+# v2.3.0
+- Added support for ES2017 `async` functions. Wherever you can pass a Node-style/CPS function that uses a callback, you can also pass an `async` function. Previously, you had to wrap `async` functions with `asyncify`. The caveat is that it will only work if `async` functions are supported natively in your environment, transpiled implementations can't be detected. ([#1386](https://github.com/caolan/async/issues/1386), [#1390](https://github.com/caolan/async/issues/1390))
+- Small doc fix ([#1392](https://github.com/caolan/async/issues/1392))
+
+# v2.2.0
+- Added `groupBy`, and the `Series`/`Limit` equivalents, analogous to [`_.groupBy`](http://lodash.com/docs#groupBy) ([#1364](https://github.com/caolan/async/issues/1364))
+- Fixed `transform` bug when `callback` was not passed ([#1381](https://github.com/caolan/async/issues/1381))
+- Added note about `reflect` to `parallel` docs ([#1385](https://github.com/caolan/async/issues/1385))
+
+# v2.1.5
+- Fix `auto` bug when function names collided with Array.prototype ([#1358](https://github.com/caolan/async/issues/1358))
+- Improve some error messages ([#1349](https://github.com/caolan/async/issues/1349))
+- Avoid stack overflow case in queue
+- Fixed an issue in `some`, `every` and `find` where processing would continue after the result was determined.
+- Cleanup implementations of `some`, `every` and `find`
+
+# v2.1.3
+- Make bundle size smaller
+- Create optimized hotpath for `filter` in array case.
+
+# v2.1.2
+- Fixed a stackoverflow bug with `detect`, `some`, `every` on large inputs ([#1293](https://github.com/caolan/async/issues/1293)).
+
+# v2.1.0
+
+- `retry` and `retryable` now support an optional `errorFilter` function that determines if the `task` should retry on the error ([#1256](https://github.com/caolan/async/issues/1256), [#1261](https://github.com/caolan/async/issues/1261))
+- Optimized array iteration in `race`, `cargo`, `queue`, and `priorityQueue` ([#1253](https://github.com/caolan/async/issues/1253))
+- Added alias documentation to doc site ([#1251](https://github.com/caolan/async/issues/1251), [#1254](https://github.com/caolan/async/issues/1254))
+- Added [BootStrap scrollspy](http://getbootstrap.com/javascript/#scrollspy) to docs to highlight in the sidebar the current method being viewed ([#1289](https://github.com/caolan/async/issues/1289), [#1300](https://github.com/caolan/async/issues/1300))
+- Various minor doc fixes ([#1263](https://github.com/caolan/async/issues/1263), [#1264](https://github.com/caolan/async/issues/1264), [#1271](https://github.com/caolan/async/issues/1271), [#1278](https://github.com/caolan/async/issues/1278), [#1280](https://github.com/caolan/async/issues/1280), [#1282](https://github.com/caolan/async/issues/1282), [#1302](https://github.com/caolan/async/issues/1302))
+
+# v2.0.1
+
+- Significantly optimized all iteration based collection methods such as `each`, `map`, `filter`, etc ([#1245](https://github.com/caolan/async/issues/1245), [#1246](https://github.com/caolan/async/issues/1246), [#1247](https://github.com/caolan/async/issues/1247)).
+
+# v2.0.0
+
+Lots of changes here!
+
+First and foremost, we have a slick new [site for docs](https://caolan.github.io/async/). Special thanks to [**@hargasinski**](https://github.com/hargasinski) for his work converting our old docs to `jsdoc` format and implementing the new website. Also huge ups to [**@ivanseidel**](https://github.com/ivanseidel) for designing our new logo. It was a long process for both of these tasks, but I think these changes turned out extraordinary well.
+
+The biggest feature is modularization. You can now `require("async/series")` to only require the `series` function. Every Async library function is available this way. You still can `require("async")` to require the entire library, like you could do before.
+
+We also provide Async as a collection of ES2015 modules. You can now `import {each} from 'async-es'` or `import waterfall from 'async-es/waterfall'`. If you are using only a few Async functions, and are using a ES bundler such as Rollup, this can significantly lower your build size.
+
+Major thanks to [**@Kikobeats**](github.com/Kikobeats), [**@aearly**](github.com/aearly) and [**@megawac**](github.com/megawac) for doing the majority of the modularization work, as well as [**@jdalton**](github.com/jdalton) and [**@Rich-Harris**](github.com/Rich-Harris) for advisory work on the general modularization strategy.
+
+Another one of the general themes of the 2.0 release is standardization of what an "async" function is. We are now more strictly following the node-style continuation passing style. That is, an async function is a function that:
+
+1. Takes a variable number of arguments
+2. The last argument is always a callback
+3. The callback can accept any number of arguments
+4. The first argument passed to the callback will be treated as an error result, if the argument is truthy
+5. Any number of result arguments can be passed after the "error" argument
+6. The callback is called once and exactly once, either on the same tick or later tick of the JavaScript event loop.
+
+There were several cases where Async accepted some functions that did not strictly have these properties, most notably `auto`, `every`, `some`, `filter`, `reject` and `detect`.
+
+Another theme is performance. We have eliminated internal deferrals in all cases where they make sense. For example, in `waterfall` and `auto`, there was a `setImmediate` between each task -- these deferrals have been removed. A `setImmediate` call can add up to 1ms of delay. This might not seem like a lot, but it can add up if you are using many Async functions in the course of processing a HTTP request, for example. Nearly all asynchronous functions that do I/O already have some sort of deferral built in, so the extra deferral is unnecessary. The trade-off of this change is removing our built-in stack-overflow defense. Many synchronous callback calls in series can quickly overflow the JS call stack. If you do have a function that is sometimes synchronous (calling its callback on the same tick), and are running into stack overflows, wrap it with `async.ensureAsync()`.
+
+Another big performance win has been re-implementing `queue`, `cargo`, and `priorityQueue` with [doubly linked lists](https://en.wikipedia.org/wiki/Doubly_linked_list) instead of arrays. This has lead to queues being an order of [magnitude faster on large sets of tasks](https://github.com/caolan/async/pull/1205).
+
+## New Features
+
+- Async is now modularized. Individual functions can be `require()`d from the main package. (`require('async/auto')`) ([#984](https://github.com/caolan/async/issues/984), [#996](https://github.com/caolan/async/issues/996))
+- Async is also available as a collection of ES2015 modules in the new `async-es` package. (`import {forEachSeries} from 'async-es'`) ([#984](https://github.com/caolan/async/issues/984), [#996](https://github.com/caolan/async/issues/996))
+- Added `race`, analogous to `Promise.race()`. It will run an array of async tasks in parallel and will call its callback with the result of the first task to respond. ([#568](https://github.com/caolan/async/issues/568), [#1038](https://github.com/caolan/async/issues/1038))
+- Collection methods now accept ES2015 iterators. Maps, Sets, and anything that implements the iterator spec can now be passed directly to `each`, `map`, `parallel`, etc.. ([#579](https://github.com/caolan/async/issues/579), [#839](https://github.com/caolan/async/issues/839), [#1074](https://github.com/caolan/async/issues/1074))
+- Added `mapValues`, for mapping over the properties of an object and returning an object with the same keys. ([#1157](https://github.com/caolan/async/issues/1157), [#1177](https://github.com/caolan/async/issues/1177))
+- Added `timeout`, a wrapper for an async function that will make the task time-out after the specified time. ([#1007](https://github.com/caolan/async/issues/1007), [#1027](https://github.com/caolan/async/issues/1027))
+- Added `reflect` and `reflectAll`, analagous to [`Promise.reflect()`](http://bluebirdjs.com/docs/api/reflect.html), a wrapper for async tasks that always succeeds, by gathering results and errors into an object. ([#942](https://github.com/caolan/async/issues/942), [#1012](https://github.com/caolan/async/issues/1012), [#1095](https://github.com/caolan/async/issues/1095))
+- `constant` supports dynamic arguments -- it will now always use its last argument as the callback. ([#1016](https://github.com/caolan/async/issues/1016), [#1052](https://github.com/caolan/async/issues/1052))
+- `setImmediate` and `nextTick` now support arguments to partially apply to the deferred function, like the node-native versions do. ([#940](https://github.com/caolan/async/issues/940), [#1053](https://github.com/caolan/async/issues/1053))
+- `auto` now supports resolving cyclic dependencies using [Kahn's algorithm](https://en.wikipedia.org/wiki/Topological_sorting#Kahn.27s_algorithm) ([#1140](https://github.com/caolan/async/issues/1140)).
+- Added `autoInject`, a relative of `auto` that automatically spreads a task's dependencies as arguments to the task function. ([#608](https://github.com/caolan/async/issues/608), [#1055](https://github.com/caolan/async/issues/1055), [#1099](https://github.com/caolan/async/issues/1099), [#1100](https://github.com/caolan/async/issues/1100))
+- You can now limit the concurrency of `auto` tasks. ([#635](https://github.com/caolan/async/issues/635), [#637](https://github.com/caolan/async/issues/637))
+- Added `retryable`, a relative of `retry` that wraps an async function, making it retry when called. ([#1058](https://github.com/caolan/async/issues/1058))
+- `retry` now supports specifying a function that determines the next time interval, useful for exponential backoff, logging and other retry strategies. ([#1161](https://github.com/caolan/async/issues/1161))
+- `retry` will now pass all of the arguments the task function was resolved with to the callback ([#1231](https://github.com/caolan/async/issues/1231)).
+- Added `q.unsaturated` -- callback called when a `queue`'s number of running workers falls below a threshold. ([#868](https://github.com/caolan/async/issues/868), [#1030](https://github.com/caolan/async/issues/1030), [#1033](https://github.com/caolan/async/issues/1033), [#1034](https://github.com/caolan/async/issues/1034))
+- Added `q.error` -- a callback called whenever a `queue` task calls its callback with an error. ([#1170](https://github.com/caolan/async/issues/1170))
+- `applyEach` and `applyEachSeries` now pass results to the final callback. ([#1088](https://github.com/caolan/async/issues/1088))
+
+## Breaking changes
+
+- Calling a callback more than once is considered an error, and an error will be thrown. This had an explicit breaking change in `waterfall`. If you were relying on this behavior, you should more accurately represent your control flow as an event emitter or stream. ([#814](https://github.com/caolan/async/issues/814), [#815](https://github.com/caolan/async/issues/815), [#1048](https://github.com/caolan/async/issues/1048), [#1050](https://github.com/caolan/async/issues/1050))
+- `auto` task functions now always take the callback as the last argument. If a task has dependencies, the `results` object will be passed as the first argument. To migrate old task functions, wrap them with [`_.flip`](https://lodash.com/docs#flip) ([#1036](https://github.com/caolan/async/issues/1036), [#1042](https://github.com/caolan/async/issues/1042))
+- Internal `setImmediate` calls have been refactored away. This may make existing flows vulnerable to stack overflows if you use many synchronous functions in series. Use `ensureAsync` to work around this. ([#696](https://github.com/caolan/async/issues/696), [#704](https://github.com/caolan/async/issues/704), [#1049](https://github.com/caolan/async/issues/1049), [#1050](https://github.com/caolan/async/issues/1050))
+- `map` used to return an object when iterating over an object. `map` now always returns an array, like in other libraries. The previous object behavior has been split out into `mapValues`. ([#1157](https://github.com/caolan/async/issues/1157), [#1177](https://github.com/caolan/async/issues/1177))
+- `filter`, `reject`, `some`, `every`, `detect` and their families like `{METHOD}Series` and `{METHOD}Limit` now expect an error as the first callback argument, rather than just a simple boolean. Pass `null` as the first argument, or use `fs.access` instead of `fs.exists`. ([#118](https://github.com/caolan/async/issues/118), [#774](https://github.com/caolan/async/issues/774), [#1028](https://github.com/caolan/async/issues/1028), [#1041](https://github.com/caolan/async/issues/1041))
+- `{METHOD}` and `{METHOD}Series` are now implemented in terms of `{METHOD}Limit`. This is a major internal simplification, and is not expected to cause many problems, but it does subtly affect how functions execute internally. ([#778](https://github.com/caolan/async/issues/778), [#847](https://github.com/caolan/async/issues/847))
+- `retry`'s callback is now optional. Previously, omitting the callback would partially apply the function, meaning it could be passed directly as a task to `series` or `auto`. The partially applied "control-flow" behavior has been separated out into `retryable`. ([#1054](https://github.com/caolan/async/issues/1054), [#1058](https://github.com/caolan/async/issues/1058))
+- The test function for `whilst`, `until`, and `during` used to be passed non-error args from the iteratee function's callback, but this led to weirdness where the first call of the test function would be passed no args. We have made it so the test function is never passed extra arguments, and only the `doWhilst`, `doUntil`, and `doDuring` functions pass iteratee callback arguments to the test function ([#1217](https://github.com/caolan/async/issues/1217), [#1224](https://github.com/caolan/async/issues/1224))
+- The `q.tasks` array has been renamed `q._tasks` and is now implemented as a doubly linked list (DLL). Any code that used to interact with this array will need to be updated to either use the provided helpers or support DLLs ([#1205](https://github.com/caolan/async/issues/1205)).
+- The timing of the `q.saturated()` callback in a `queue` has been modified to better reflect when tasks pushed to the queue will start queueing. ([#724](https://github.com/caolan/async/issues/724), [#1078](https://github.com/caolan/async/issues/1078))
+- Removed `iterator` method in favour of [ES2015 iterator protocol](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Iterators_and_Generators ) which natively supports arrays ([#1237](https://github.com/caolan/async/issues/1237))
+- Dropped support for Component, Jam, SPM, and Volo ([#1175](https://github.com/caolan/async/issues/1175), #[#176](https://github.com/caolan/async/issues/176))
+
+## Bug Fixes
+
+- Improved handling of no dependency cases in `auto` & `autoInject` ([#1147](https://github.com/caolan/async/issues/1147)).
+- Fixed a bug where the callback generated by `asyncify` with `Promises` could resolve twice ([#1197](https://github.com/caolan/async/issues/1197)).
+- Fixed several documented optional callbacks not actually being optional ([#1223](https://github.com/caolan/async/issues/1223)).
+
+## Other
+
+- Added `someSeries` and `everySeries` for symmetry, as well as a complete set of `any`/`anyLimit`/`anySeries` and `all`/`/allLmit`/`allSeries` aliases.
+- Added `find` as an alias for `detect. (as well as `findLimit` and `findSeries`).
+- Various doc fixes ([#1005](https://github.com/caolan/async/issues/1005), [#1008](https://github.com/caolan/async/issues/1008), [#1010](https://github.com/caolan/async/issues/1010), [#1015](https://github.com/caolan/async/issues/1015), [#1021](https://github.com/caolan/async/issues/1021), [#1037](https://github.com/caolan/async/issues/1037), [#1039](https://github.com/caolan/async/issues/1039), [#1051](https://github.com/caolan/async/issues/1051), [#1102](https://github.com/caolan/async/issues/1102), [#1107](https://github.com/caolan/async/issues/1107), [#1121](https://github.com/caolan/async/issues/1121), [#1123](https://github.com/caolan/async/issues/1123), [#1129](https://github.com/caolan/async/issues/1129), [#1135](https://github.com/caolan/async/issues/1135), [#1138](https://github.com/caolan/async/issues/1138), [#1141](https://github.com/caolan/async/issues/1141), [#1153](https://github.com/caolan/async/issues/1153), [#1216](https://github.com/caolan/async/issues/1216), [#1217](https://github.com/caolan/async/issues/1217), [#1232](https://github.com/caolan/async/issues/1232), [#1233](https://github.com/caolan/async/issues/1233), [#1236](https://github.com/caolan/async/issues/1236), [#1238](https://github.com/caolan/async/issues/1238))
+
+Thank you [**@aearly**](github.com/aearly) and [**@megawac**](github.com/megawac) for taking the lead on version 2 of async.
+
+------------------------------------------
+
+# v1.5.2
+- Allow using `"constructor"` as an argument in `memoize` ([#998](https://github.com/caolan/async/issues/998))
+- Give a better error messsage when `auto` dependency checking fails ([#994](https://github.com/caolan/async/issues/994))
+- Various doc updates ([#936](https://github.com/caolan/async/issues/936), [#956](https://github.com/caolan/async/issues/956), [#979](https://github.com/caolan/async/issues/979), [#1002](https://github.com/caolan/async/issues/1002))
+
+# v1.5.1
+- Fix issue with `pause` in `queue` with concurrency enabled ([#946](https://github.com/caolan/async/issues/946))
+- `while` and `until` now pass the final result to callback ([#963](https://github.com/caolan/async/issues/963))
+- `auto` will properly handle concurrency when there is no callback ([#966](https://github.com/caolan/async/issues/966))
+- `auto` will no. properly stop execution when an error occurs ([#988](https://github.com/caolan/async/issues/988), [#993](https://github.com/caolan/async/issues/993))
+- Various doc fixes ([#971](https://github.com/caolan/async/issues/971), [#980](https://github.com/caolan/async/issues/980))
+
+# v1.5.0
+
+- Added `transform`, analogous to [`_.transform`](http://lodash.com/docs#transform) ([#892](https://github.com/caolan/async/issues/892))
+- `map` now returns an object when an object is passed in, rather than array with non-numeric keys. `map` will begin always returning an array with numeric indexes in the next major release. ([#873](https://github.com/caolan/async/issues/873))
+- `auto` now accepts an optional `concurrency` argument to limit the number o. running tasks ([#637](https://github.com/caolan/async/issues/637))
+- Added `queue#workersList()`, to retrieve the lis. of currently running tasks. ([#891](https://github.com/caolan/async/issues/891))
+- Various code simplifications ([#896](https://github.com/caolan/async/issues/896), [#904](https://github.com/caolan/async/issues/904))
+- Various doc fixes :scroll: ([#890](https://github.com/caolan/async/issues/890), [#894](https://github.com/caolan/async/issues/894), [#903](https://github.com/caolan/async/issues/903), [#905](https://github.com/caolan/async/issues/905), [#912](https://github.com/caolan/async/issues/912))
+
+# v1.4.2
+
+- Ensure coverage files don't get published on npm ([#879](https://github.com/caolan/async/issues/879))
+
+# v1.4.1
+
+- Add in overlooked `detectLimit` method ([#866](https://github.com/caolan/async/issues/866))
+- Removed unnecessary files from npm releases ([#861](https://github.com/caolan/async/issues/861))
+- Removed usage of a reserved word to prevent :boom: in older environments ([#870](https://github.com/caolan/async/issues/870))
+
+# v1.4.0
+
+- `asyncify` now supports promises ([#840](https://github.com/caolan/async/issues/840))
+- Added `Limit` versions of `filter` and `reject` ([#836](https://github.com/caolan/async/issues/836))
+- Add `Limit` versions of `detect`, `some` and `every` ([#828](https://github.com/caolan/async/issues/828), [#829](https://github.com/caolan/async/issues/829))
+- `some`, `every` and `detect` now short circuit early ([#828](https://github.com/caolan/async/issues/828), [#829](https://github.com/caolan/async/issues/829))
+- Improve detection of the global object ([#804](https://github.com/caolan/async/issues/804)), enabling use in WebWorkers
+- `whilst` now called with arguments from iterator ([#823](https://github.com/caolan/async/issues/823))
+- `during` now gets called with arguments from iterator ([#824](https://github.com/caolan/async/issues/824))
+- Code simplifications and optimizations aplenty ([diff](https://github.com/caolan/async/compare/v1.3.0...v1.4.0))
+
+
+# v1.3.0
+
+New Features:
+- Added `constant`
+- Added `asyncify`/`wrapSync` for making sync functions work with callbacks. ([#671](https://github.com/caolan/async/issues/671), [#806](https://github.com/caolan/async/issues/806))
+- Added `during` and `doDuring`, which are like `whilst` with an async truth test. ([#800](https://github.com/caolan/async/issues/800))
+- `retry` now accepts an `interval` parameter to specify a delay between retries. ([#793](https://github.com/caolan/async/issues/793))
+- `async` should work better in Web Workers due to better `root` detection ([#804](https://github.com/caolan/async/issues/804))
+- Callbacks are now optional in `whilst`, `doWhilst`, `until`, and `doUntil` ([#642](https://github.com/caolan/async/issues/642))
+- Various internal updates ([#786](https://github.com/caolan/async/issues/786), [#801](https://github.com/caolan/async/issues/801), [#802](https://github.com/caolan/async/issues/802), [#803](https://github.com/caolan/async/issues/803))
+- Various doc fixes ([#790](https://github.com/caolan/async/issues/790), [#794](https://github.com/caolan/async/issues/794))
+
+Bug Fixes:
+- `cargo` now exposes the `payload` size, and `cargo.payload` can be changed on the fly after the `cargo` is created. ([#740](https://github.com/caolan/async/issues/740), [#744](https://github.com/caolan/async/issues/744), [#783](https://github.com/caolan/async/issues/783))
+
+
+# v1.2.1
+
+Bug Fix:
+
+- Small regression with synchronous iterator behavior in `eachSeries` with a 1-element array. Before 1.1.0, `eachSeries`'s callback was called on the same tick, which this patch restores. In 2.0.0, it will be called on the next tick. ([#782](https://github.com/caolan/async/issues/782))
+
+
+# v1.2.0
+
+New Features:
+
+- Added `timesLimit` ([#743](https://github.com/caolan/async/issues/743))
+- `concurrency` can be changed after initialization in `queue` by setting `q.concurrency`. The new concurrency will be reflected the next time a task is processed. ([#747](https://github.com/caolan/async/issues/747), [#772](https://github.com/caolan/async/issues/772))
+
+Bug Fixes:
+
+- Fixed a regression in `each` and family with empty arrays that have additional properties. ([#775](https://github.com/caolan/async/issues/775), [#777](https://github.com/caolan/async/issues/777))
+
+
+# v1.1.1
+
+Bug Fix:
+
+- Small regression with synchronous iterator behavior in `eachSeries` with a 1-element array. Before 1.1.0, `eachSeries`'s callback was called on the same tick, which this patch restores. In 2.0.0, it will be called on the next tick. ([#782](https://github.com/caolan/async/issues/782))
+
+
+# v1.1.0
+
+New Features:
+
+- `cargo` now supports all of the same methods and event callbacks as `queue`.
+- Added `ensureAsync` - A wrapper that ensures an async function calls its callback on a later tick. ([#769](https://github.com/caolan/async/issues/769))
+- Optimized `map`, `eachOf`, and `waterfall` families of functions
+- Passing a `null` or `undefined` array to `map`, `each`, `parallel` and families will be treated as an empty array ([#667](https://github.com/caolan/async/issues/667)).
+- The callback is now optional for the composed results of `compose` and `seq`. ([#618](https://github.com/caolan/async/issues/618))
+- Reduced file size by 4kb, (minified version by 1kb)
+- Added code coverage through `nyc` and `coveralls` ([#768](https://github.com/caolan/async/issues/768))
+
+Bug Fixes:
+
+- `forever` will no longer stack overflow with a synchronous iterator ([#622](https://github.com/caolan/async/issues/622))
+- `eachLimit` and other limit functions will stop iterating once an error occurs ([#754](https://github.com/caolan/async/issues/754))
+- Always pass `null` in callbacks when there is no error ([#439](https://github.com/caolan/async/issues/439))
+- Ensure proper conditions when calling `drain()` after pushing an empty data set to a queue ([#668](https://github.com/caolan/async/issues/668))
+- `each` and family will properly handle an empty array ([#578](https://github.com/caolan/async/issues/578))
+- `eachSeries` and family will finish if the underlying array is modified during execution ([#557](https://github.com/caolan/async/issues/557))
+- `queue` will throw if a non-function is passed to `q.push()` ([#593](https://github.com/caolan/async/issues/593))
+- Doc fixes ([#629](https://github.com/caolan/async/issues/629), [#766](https://github.com/caolan/async/issues/766))
+
+
+# v1.0.0
+
+No known breaking changes, we are simply complying with semver from here on out.
+
+Changes:
+
+- Start using a changelog!
+- Add `forEachOf` for iterating over Objects (or to iterate Arrays with indexes available) ([#168](https://github.com/caolan/async/issues/168) [#704](https://github.com/caolan/async/issues/704) [#321](https://github.com/caolan/async/issues/321))
+- Detect deadlocks in `auto` ([#663](https://github.com/caolan/async/issues/663))
+- Better support for require.js ([#527](https://github.com/caolan/async/issues/527))
+- Throw if queue created with concurrency `0` ([#714](https://github.com/caolan/async/issues/714))
+- Fix unneeded iteration in `queue.resume()` ([#758](https://github.com/caolan/async/issues/758))
+- Guard against timer mocking overriding `setImmediate` ([#609](https://github.com/caolan/async/issues/609) [#611](https://github.com/caolan/async/issues/611))
+- Miscellaneous doc fixes ([#542](https://github.com/caolan/async/issues/542) [#596](https://github.com/caolan/async/issues/596) [#615](https://github.com/caolan/async/issues/615) [#628](https://github.com/caolan/async/issues/628) [#631](https://github.com/caolan/async/issues/631) [#690](https://github.com/caolan/async/issues/690) [#729](https://github.com/caolan/async/issues/729))
+- Use single noop function internally ([#546](https://github.com/caolan/async/issues/546))
+- Optimize internal `_each`, `_map` and `_keys` functions.
diff --git a/node_modules/async/LICENSE b/node_modules/async/LICENSE
new file mode 100644
index 00000000..b18aed69
--- /dev/null
+++ b/node_modules/async/LICENSE
@@ -0,0 +1,19 @@
+Copyright (c) 2010-2018 Caolan McMahon
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/node_modules/async/README.md b/node_modules/async/README.md
new file mode 100644
index 00000000..77f645e2
--- /dev/null
+++ b/node_modules/async/README.md
@@ -0,0 +1,59 @@
+
+
+
+[](https://www.npmjs.com/package/async)
+[](https://coveralls.io/r/caolan/async?branch=master)
+[](https://gitter.im/caolan/async?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
+[](https://www.jsdelivr.com/package/npm/async)
+
+
+
+Async is a utility module which provides straight-forward, powerful functions for working with [asynchronous JavaScript](http://caolan.github.io/async/v3/global.html). Although originally designed for use with [Node.js](https://nodejs.org/) and installable via `npm i async`, it can also be used directly in the browser. A ESM/MJS version is included in the main `async` package that should automatically be used with compatible bundlers such as Webpack and Rollup.
+
+A pure ESM version of Async is available as [`async-es`](https://www.npmjs.com/package/async-es).
+
+For Documentation, visit 
+
+
+Security considerations
+-----------------------
+Besides incorporating a salt to protect against rainbow table attacks, bcrypt is an adaptive function: over time, the
+iteration count can be increased to make it slower, so it remains resistant to brute-force search attacks even with
+increasing computation power. ([see](http://en.wikipedia.org/wiki/Bcrypt))
+
+While bcrypt.js is compatible to the C++ bcrypt binding, it is written in pure JavaScript and thus slower ([about 30%](https://github.com/dcodeIO/bcrypt.js/wiki/Benchmark)), effectively reducing the number of iterations that can be
+processed in an equal time span.
+
+The maximum input length is 72 bytes (note that UTF8 encoded characters use up to 4 bytes) and the length of generated
+hashes is 60 characters.
+
+Usage
+-----
+The library is compatible with CommonJS and AMD loaders and is exposed globally as `dcodeIO.bcrypt` if neither is
+available.
+
+### node.js
+
+On node.js, the inbuilt [crypto module](http://nodejs.org/api/crypto.html)'s randomBytes interface is used to obtain
+secure random numbers.
+
+`npm install bcryptjs`
+
+```js
+var bcrypt = require('bcryptjs');
+...
+```
+
+### Browser
+
+In the browser, bcrypt.js relies on [Web Crypto API](http://www.w3.org/TR/WebCryptoAPI)'s getRandomValues
+interface to obtain secure random numbers. If no cryptographically secure source of randomness is available, you may
+specify one through [bcrypt.setRandomFallback](https://github.com/dcodeIO/bcrypt.js#setrandomfallbackrandom).
+
+```js
+var bcrypt = dcodeIO.bcrypt;
+...
+```
+
+or
+
+```js
+require.config({
+ paths: { "bcrypt": "/path/to/bcrypt.js" }
+});
+require(["bcrypt"], function(bcrypt) {
+ ...
+});
+```
+
+Usage - Sync
+------------
+To hash a password:
+
+```javascript
+var bcrypt = require('bcryptjs');
+var salt = bcrypt.genSaltSync(10);
+var hash = bcrypt.hashSync("B4c0/\/", salt);
+// Store hash in your password DB.
+```
+
+To check a password:
+
+```javascript
+// Load hash from your password DB.
+bcrypt.compareSync("B4c0/\/", hash); // true
+bcrypt.compareSync("not_bacon", hash); // false
+```
+
+Auto-gen a salt and hash:
+
+```javascript
+var hash = bcrypt.hashSync('bacon', 8);
+```
+
+Usage - Async
+-------------
+To hash a password:
+
+```javascript
+var bcrypt = require('bcryptjs');
+bcrypt.genSalt(10, function(err, salt) {
+ bcrypt.hash("B4c0/\/", salt, function(err, hash) {
+ // Store hash in your password DB.
+ });
+});
+```
+
+To check a password:
+
+```javascript
+// Load hash from your password DB.
+bcrypt.compare("B4c0/\/", hash, function(err, res) {
+ // res === true
+});
+bcrypt.compare("not_bacon", hash, function(err, res) {
+ // res === false
+});
+
+// As of bcryptjs 2.4.0, compare returns a promise if callback is omitted:
+bcrypt.compare("B4c0/\/", hash).then((res) => {
+ // res === true
+});
+```
+
+Auto-gen a salt and hash:
+
+```javascript
+bcrypt.hash('bacon', 8, function(err, hash) {
+});
+```
+
+**Note:** Under the hood, asynchronisation splits a crypto operation into small chunks. After the completion of a chunk, the execution of the next chunk is placed on the back of [JS event loop queue](https://developer.mozilla.org/en/docs/Web/JavaScript/EventLoop), thus efficiently sharing the computational resources with the other operations in the queue.
+
+API
+---
+### setRandomFallback(random)
+
+Sets the pseudo random number generator to use as a fallback if neither node's `crypto` module nor the Web Crypto
+API is available. Please note: It is highly important that the PRNG used is cryptographically secure and that it is
+seeded properly!
+
+| Parameter | Type | Description
+|-----------------|-----------------|---------------
+| random | *function(number):!Array.<number>* | Function taking the number of bytes to generate as its sole argument, returning the corresponding array of cryptographically secure random byte values.
+| **@see** | | http://nodejs.org/api/crypto.html
+| **@see** | | http://www.w3.org/TR/WebCryptoAPI/
+
+**Hint:** You might use [isaac.js](https://github.com/rubycon/isaac.js) as a CSPRNG but you still have to make sure to
+seed it properly.
+
+### genSaltSync(rounds=, seed_length=)
+
+Synchronously generates a salt.
+
+| Parameter | Type | Description
+|-----------------|-----------------|---------------
+| rounds | *number* | Number of rounds to use, defaults to 10 if omitted
+| seed_length | *number* | Not supported.
+| **@returns** | *string* | Resulting salt
+| **@throws** | *Error* | If a random fallback is required but not set
+
+### genSalt(rounds=, seed_length=, callback)
+
+Asynchronously generates a salt.
+
+| Parameter | Type | Description
+|-----------------|-----------------|---------------
+| rounds | *number | function(Error, string=)* | Number of rounds to use, defaults to 10 if omitted
+| seed_length | *number | function(Error, string=)* | Not supported.
+| callback | *function(Error, string=)* | Callback receiving the error, if any, and the resulting salt
+| **@returns** | *Promise* | If `callback` has been omitted
+| **@throws** | *Error* | If `callback` is present but not a function
+
+### hashSync(s, salt=)
+
+Synchronously generates a hash for the given string.
+
+| Parameter | Type | Description
+|-----------------|-----------------|---------------
+| s | *string* | String to hash
+| salt | *number | string* | Salt length to generate or salt to use, default to 10
+| **@returns** | *string* | Resulting hash
+
+### hash(s, salt, callback, progressCallback=)
+
+Asynchronously generates a hash for the given string.
+
+| Parameter | Type | Description
+|-----------------|-----------------|---------------
+| s | *string* | String to hash
+| salt | *number | string* | Salt length to generate or salt to use
+| callback | *function(Error, string=)* | Callback receiving the error, if any, and the resulting hash
+| progressCallback | *function(number)* | Callback successively called with the percentage of rounds completed (0.0 - 1.0), maximally once per `MAX_EXECUTION_TIME = 100` ms.
+| **@returns** | *Promise* | If `callback` has been omitted
+| **@throws** | *Error* | If `callback` is present but not a function
+
+### compareSync(s, hash)
+
+Synchronously tests a string against a hash.
+
+| Parameter | Type | Description
+|-----------------|-----------------|---------------
+| s | *string* | String to compare
+| hash | *string* | Hash to test against
+| **@returns** | *boolean* | true if matching, otherwise false
+| **@throws** | *Error* | If an argument is illegal
+
+### compare(s, hash, callback, progressCallback=)
+
+Asynchronously compares the given data against the given hash.
+
+| Parameter | Type | Description
+|-----------------|-----------------|---------------
+| s | *string* | Data to compare
+| hash | *string* | Data to be compared to
+| callback | *function(Error, boolean)* | Callback receiving the error, if any, otherwise the result
+| progressCallback | *function(number)* | Callback successively called with the percentage of rounds completed (0.0 - 1.0), maximally once per `MAX_EXECUTION_TIME = 100` ms.
+| **@returns** | *Promise* | If `callback` has been omitted
+| **@throws** | *Error* | If `callback` is present but not a function
+
+### getRounds(hash)
+
+Gets the number of rounds used to encrypt the specified hash.
+
+| Parameter | Type | Description
+|-----------------|-----------------|---------------
+| hash | *string* | Hash to extract the used number of rounds from
+| **@returns** | *number* | Number of rounds used
+| **@throws** | *Error* | If `hash` is not a string
+
+### getSalt(hash)
+
+Gets the salt portion from a hash. Does not validate the hash.
+
+| Parameter | Type | Description
+|-----------------|-----------------|---------------
+| hash | *string* | Hash to extract the salt from
+| **@returns** | *string* | Extracted salt part
+| **@throws** | *Error* | If `hash` is not a string or otherwise invalid
+
+
+Command line
+------------
+`Usage: bcrypt [salt]`
+
+If the input has spaces inside, simply surround it with quotes.
+
+Downloads
+---------
+* [Distributions](https://github.com/dcodeIO/bcrypt.js/tree/master/dist)
+* [ZIP-Archive](https://github.com/dcodeIO/bcrypt.js/archive/master.zip)
+* [Tarball](https://github.com/dcodeIO/bcrypt.js/tarball/master)
+
+Credits
+-------
+Based on work started by Shane Girish at [bcrypt-nodejs](https://github.com/shaneGirish/bcrypt-nodejs) (MIT-licensed),
+which is itself based on [javascript-bcrypt](http://code.google.com/p/javascript-bcrypt/) (New BSD-licensed).
+
+License
+-------
+New-BSD / MIT ([see](https://github.com/dcodeIO/bcrypt.js/blob/master/LICENSE))
diff --git a/node_modules/bcryptjs/bin/bcrypt b/node_modules/bcryptjs/bin/bcrypt
new file mode 100644
index 00000000..ddde6044
--- /dev/null
+++ b/node_modules/bcryptjs/bin/bcrypt
@@ -0,0 +1,25 @@
+#!/usr/bin/env node
+
+var path = require("path"),
+ bcrypt = require(path.join(__dirname, '..', 'index.js')),
+ pkg = require(path.join(__dirname, '..', 'package.json'));
+
+if (process.argv.length < 3) {
+ process.stderr.write([ // No dependencies, so we do it from hand.
+ "",
+ " |_ _ _ _ |_",
+ " |_)(_| \\/|_)|_ v"+pkg['version']+" (c) "+pkg['author'],
+ " / | "
+ ].join('\n')+'\n\n'+" Usage: "+path.basename(process.argv[1])+" [rounds|salt]\n");
+ process.exit(1);
+} else {
+ var salt;
+ if (process.argv.length > 3) {
+ salt = process.argv[3];
+ var rounds = parseInt(salt, 10);
+ if (rounds == salt)
+ salt = bcrypt.genSaltSync(rounds);
+ } else
+ salt = bcrypt.genSaltSync();
+ process.stdout.write(bcrypt.hashSync(process.argv[2], salt)+"\n");
+}
diff --git a/node_modules/bcryptjs/bower.json b/node_modules/bcryptjs/bower.json
new file mode 100644
index 00000000..746391ae
--- /dev/null
+++ b/node_modules/bcryptjs/bower.json
@@ -0,0 +1,22 @@
+{
+ "name": "bcryptjs",
+ "description": "Optimized bcrypt in plain JavaScript with zero dependencies.",
+ "version": "2.4.3",
+ "main": "dist/bcrypt.min.js",
+ "license": "New-BSD",
+ "homepage": "http://dcode.io/",
+ "repository": {
+ "type": "git",
+ "url": "git://github.com/dcodeIO/bcrypt.js.git"
+ },
+ "keywords": ["bcrypt", "password", "auth", "authentication", "encryption", "crypt", "crypto"],
+ "dependencies": {},
+ "devDependencies": {},
+ "ignore": [
+ "**/.*",
+ "node_modules",
+ "bower_components",
+ "test",
+ "tests"
+ ]
+}
diff --git a/node_modules/bcryptjs/dist/README.md b/node_modules/bcryptjs/dist/README.md
new file mode 100644
index 00000000..37a51645
--- /dev/null
+++ b/node_modules/bcryptjs/dist/README.md
@@ -0,0 +1,15 @@
+Distributions
+=============
+bcrypt.js is available as the following distributions:
+
+* **[bcrypt.js](https://github.com/dcodeIO/bcrypt.js/blob/master/dist/bcrypt.js)**
+ contains the commented source code.
+
+* **[bcrypt.min.js](https://github.com/dcodeIO/bcrypt.js/blob/master/dist/bcrypt.min.js)**
+ has been compiled with Closure Compiler using advanced optimizations.
+
+* **[bcrypt.min.map](https://github.com/dcodeIO/bcrypt.js/blob/master/dist/bcrypt.min.map)**
+ contains the source map generated by Closure Compiler.
+
+* **[bcrypt.min.js.gz](https://github.com/dcodeIO/bcrypt.js/blob/master/dist/bcrypt.min.js.gz)**
+ has also been gzipped using `-9`.
diff --git a/node_modules/bcryptjs/dist/bcrypt.js b/node_modules/bcryptjs/dist/bcrypt.js
new file mode 100644
index 00000000..1b0a648e
--- /dev/null
+++ b/node_modules/bcryptjs/dist/bcrypt.js
@@ -0,0 +1,1379 @@
+/*
+ Copyright (c) 2012 Nevins Bartolomeo + +## Features + + - Integers and decimals + - Simple API but full-featured + - Faster, smaller, and perhaps easier to use than JavaScript versions of Java's BigDecimal + - 8 KB minified and gzipped + - Replicates the `toExponential`, `toFixed`, `toPrecision` and `toString` methods of JavaScript's Number type + - Includes a `toFraction` and a correctly-rounded `squareRoot` method + - Supports cryptographically-secure pseudo-random number generation + - No dependencies + - Wide platform compatibility: uses JavaScript 1.5 (ECMAScript 3) features only + - Comprehensive [documentation](http://mikemcl.github.io/bignumber.js/) and test set + + + +If a smaller and simpler library is required see [big.js](https://github.com/MikeMcl/big.js/). +It's less than half the size but only works with decimal numbers and only has half the methods. +It also does not allow `NaN` or `Infinity`, or have the configuration options of this library. + +See also [decimal.js](https://github.com/MikeMcl/decimal.js/), which among other things adds support for non-integer powers, and performs all operations to a specified number of significant digits. + +## Load + +The library is the single JavaScript file *bignumber.js* (or minified, *bignumber.min.js*). + +Browser: + +```html + +``` + +[Node.js](http://nodejs.org): + +```bash +$ npm install bignumber.js +``` + +```javascript +const BigNumber = require('bignumber.js'); +``` + +ES6 module: + +```javascript +import BigNumber from "./bignumber.mjs" +``` + +AMD loader libraries such as [requireJS](http://requirejs.org/): + +```javascript +require(['bignumber'], function(BigNumber) { + // Use BigNumber here in local scope. No global BigNumber. +}); +``` + +## Use + +The library exports a single constructor function, [`BigNumber`](http://mikemcl.github.io/bignumber.js/#bignumber), which accepts a value of type Number, String or BigNumber, + +```javascript +let x = new BigNumber(123.4567); +let y = BigNumber('123456.7e-3'); +let z = new BigNumber(x); +x.isEqualTo(y) && y.isEqualTo(z) && x.isEqualTo(z); // true +``` + +To get the string value of a BigNumber use [`toString()`](http://mikemcl.github.io/bignumber.js/#toS) or [`toFixed()`](http://mikemcl.github.io/bignumber.js/#toFix). Using `toFixed()` prevents exponential notation being returned, no matter how large or small the value. + +```javascript +let x = new BigNumber('1111222233334444555566'); +x.toString(); // "1.111222233334444555566e+21" +x.toFixed(); // "1111222233334444555566" +``` + +If the limited precision of Number values is not well understood, it is recommended to create BigNumbers from String values rather than Number values to avoid a potential loss of precision. + +*In all further examples below, `let`, semicolons and `toString` calls are not shown. If a commented-out value is in quotes it means `toString` has been called on the preceding expression.* + +```javascript +// Precision loss from using numeric literals with more than 15 significant digits. +new BigNumber(1.0000000000000001) // '1' +new BigNumber(88259496234518.57) // '88259496234518.56' +new BigNumber(99999999999999999999) // '100000000000000000000' + +// Precision loss from using numeric literals outside the range of Number values. +new BigNumber(2e+308) // 'Infinity' +new BigNumber(1e-324) // '0' + +// Precision loss from the unexpected result of arithmetic with Number values. +new BigNumber(0.7 + 0.1) // '0.7999999999999999' +``` + +When creating a BigNumber from a Number, note that a BigNumber is created from a Number's decimal `toString()` value not from its underlying binary value. If the latter is required, then pass the Number's `toString(2)` value and specify base 2. + +```javascript +new BigNumber(Number.MAX_VALUE.toString(2), 2) +``` + +BigNumbers can be created from values in bases from 2 to 36. See [`ALPHABET`](http://mikemcl.github.io/bignumber.js/#alphabet) to extend this range. + +```javascript +a = new BigNumber(1011, 2) // "11" +b = new BigNumber('zz.9', 36) // "1295.25" +c = a.plus(b) // "1306.25" +``` + +Performance is better if base 10 is NOT specified for decimal values. Only specify base 10 when it is desired that the number of decimal places of the input value be limited to the current [`DECIMAL_PLACES`](http://mikemcl.github.io/bignumber.js/#decimal-places) setting. + +A BigNumber is immutable in the sense that it is not changed by its methods. + +```javascript +0.3 - 0.1 // 0.19999999999999998 +x = new BigNumber(0.3) +x.minus(0.1) // "0.2" +x // "0.3" +``` + +The methods that return a BigNumber can be chained. + +```javascript +x.dividedBy(y).plus(z).times(9) +x.times('1.23456780123456789e+9').plus(9876.5432321).dividedBy('4444562598.111772').integerValue() +``` + +Some of the longer method names have a shorter alias. + +```javascript +x.squareRoot().dividedBy(y).exponentiatedBy(3).isEqualTo(x.sqrt().div(y).pow(3)) // true +x.modulo(y).multipliedBy(z).eq(x.mod(y).times(z)) // true +``` + +As with JavaScript's Number type, there are [`toExponential`](http://mikemcl.github.io/bignumber.js/#toE), [`toFixed`](http://mikemcl.github.io/bignumber.js/#toFix) and [`toPrecision`](http://mikemcl.github.io/bignumber.js/#toP) methods. + +```javascript +x = new BigNumber(255.5) +x.toExponential(5) // "2.55500e+2" +x.toFixed(5) // "255.50000" +x.toPrecision(5) // "255.50" +x.toNumber() // 255.5 +``` + + A base can be specified for [`toString`](http://mikemcl.github.io/bignumber.js/#toS). Performance is better if base 10 is NOT specified, i.e. use `toString()` not `toString(10)`. Only specify base 10 when it is desired that the number of decimal places be limited to the current [`DECIMAL_PLACES`](http://mikemcl.github.io/bignumber.js/#decimal-places) setting. + + ```javascript + x.toString(16) // "ff.8" + ``` + +There is a [`toFormat`](http://mikemcl.github.io/bignumber.js/#toFor) method which may be useful for internationalisation. + +```javascript +y = new BigNumber('1234567.898765') +y.toFormat(2) // "1,234,567.90" +``` + +The maximum number of decimal places of the result of an operation involving division (i.e. a division, square root, base conversion or negative power operation) is set using the `set` or `config` method of the `BigNumber` constructor. + +The other arithmetic operations always give the exact result. + +```javascript +BigNumber.set({ DECIMAL_PLACES: 10, ROUNDING_MODE: 4 }) + +x = new BigNumber(2) +y = new BigNumber(3) +z = x.dividedBy(y) // "0.6666666667" +z.squareRoot() // "0.8164965809" +z.exponentiatedBy(-3) // "3.3749999995" +z.toString(2) // "0.1010101011" +z.multipliedBy(z) // "0.44444444448888888889" +z.multipliedBy(z).decimalPlaces(10) // "0.4444444445" +``` + +There is a [`toFraction`](http://mikemcl.github.io/bignumber.js/#toFr) method with an optional *maximum denominator* argument + +```javascript +y = new BigNumber(355) +pi = y.dividedBy(113) // "3.1415929204" +pi.toFraction() // [ "7853982301", "2500000000" ] +pi.toFraction(1000) // [ "355", "113" ] +``` + +and [`isNaN`](http://mikemcl.github.io/bignumber.js/#isNaN) and [`isFinite`](http://mikemcl.github.io/bignumber.js/#isF) methods, as `NaN` and `Infinity` are valid `BigNumber` values. + +```javascript +x = new BigNumber(NaN) // "NaN" +y = new BigNumber(Infinity) // "Infinity" +x.isNaN() && !y.isNaN() && !x.isFinite() && !y.isFinite() // true +``` + +The value of a BigNumber is stored in a decimal floating point format in terms of a coefficient, exponent and sign. + +```javascript +x = new BigNumber(-123.456); +x.c // [ 123, 45600000000000 ] coefficient (i.e. significand) +x.e // 2 exponent +x.s // -1 sign +``` + +For advanced usage, multiple BigNumber constructors can be created, each with their own independent configuration. + +```javascript +// Set DECIMAL_PLACES for the original BigNumber constructor +BigNumber.set({ DECIMAL_PLACES: 10 }) + +// Create another BigNumber constructor, optionally passing in a configuration object +BN = BigNumber.clone({ DECIMAL_PLACES: 5 }) + +x = new BigNumber(1) +y = new BN(1) + +x.div(3) // '0.3333333333' +y.div(3) // '0.33333' +``` + +For further information see the [API](http://mikemcl.github.io/bignumber.js/) reference in the *doc* directory. + +## Test + +The *test/modules* directory contains the test scripts for each method. + +The tests can be run with Node.js or a browser. For Node.js use + + $ npm test + +or + + $ node test/test + +To test a single method, use, for example + + $ node test/methods/toFraction + +For the browser, open *test/test.html*. + +## Build + +For Node, if [uglify-js](https://github.com/mishoo/UglifyJS2) is installed + + npm install uglify-js -g + +then + + npm run build + +will create *bignumber.min.js*. + +A source map will also be created in the root directory. + +## Feedback + +Open an issue, or email + +Michael + +M8ch88l@gmail.com + +## Licence + +The MIT Licence. + +See [LICENCE](https://github.com/MikeMcl/bignumber.js/blob/master/LICENCE). diff --git a/node_modules/bignumber.js/bignumber.d.ts b/node_modules/bignumber.js/bignumber.d.ts new file mode 100644 index 00000000..ac6a3e43 --- /dev/null +++ b/node_modules/bignumber.js/bignumber.d.ts @@ -0,0 +1,1829 @@ +// Type definitions for bignumber.js >=8.1.0 +// Project: https://github.com/MikeMcl/bignumber.js +// Definitions by: Michael Mclaughlin
+
+
+ BigNumber
+ clone
+
+ config
+
+
+ isBigNumber
+ maximum
+ minimum
+
+ random
+ sum
+
+
+ absoluteValue
+
+ comparedTo
+
+
+
+ decimalPlaces
+ dividedBy
+
+ dividedToIntegerBy
+
+ exponentiatedBy
+
+ integerValue
+ isEqualTo
+ isFinite
+ isGreaterThan
+
+ isGreaterThanOrEqualTo
+ isInteger
+ isLessThan
+
+ isLessThanOrEqualTo
+ isNaN
+ isNegative
+ isPositive
+ isZero
+
+ minus
+ modulo
+
+ multipliedBy
+ negated
+ plus
+
+ precision
+ shiftedBy
+ squareRoot
+
+ toExponential
+
+ toFixed
+
+ toFormat
+
+ toFraction
+ toJSON
+ toNumber
+
+ toPrecision
+ toString
+ valueOf
+
+
+
+
+
+
+
+
+
+
diff --git a/node_modules/bignumber.js/package.json b/node_modules/bignumber.js/package.json
new file mode 100644
index 00000000..885136c6
--- /dev/null
+++ b/node_modules/bignumber.js/package.json
@@ -0,0 +1,40 @@
+{
+ "name": "bignumber.js",
+ "description": "A library for arbitrary-precision decimal and non-decimal arithmetic",
+ "version": "9.0.0",
+ "keywords": [
+ "arbitrary",
+ "precision",
+ "arithmetic",
+ "big",
+ "number",
+ "decimal",
+ "float",
+ "biginteger",
+ "bigdecimal",
+ "bignumber",
+ "bigint",
+ "bignum"
+ ],
+ "repository": {
+ "type": "git",
+ "url": "https://github.com/MikeMcl/bignumber.js.git"
+ },
+ "main": "bignumber",
+ "module": "bignumber.mjs",
+ "browser": "bignumber.js",
+ "types": "bignumber.d.ts",
+ "author": {
+ "name": "Michael Mclaughlin",
+ "email": "M8ch88l@gmail.com"
+ },
+ "engines": {
+ "node": "*"
+ },
+ "license": "MIT",
+ "scripts": {
+ "test": "node test/test",
+ "build": "uglifyjs bignumber.js --source-map -c -m -o bignumber.min.js"
+ },
+ "dependencies": {}
+}
diff --git a/node_modules/body-parser/HISTORY.md b/node_modules/body-parser/HISTORY.md
new file mode 100644
index 00000000..b8924919
--- /dev/null
+++ b/node_modules/body-parser/HISTORY.md
@@ -0,0 +1,665 @@
+1.20.2 / 2023-02-21
+===================
+
+ * Fix strict json error message on Node.js 19+
+ * deps: content-type@~1.0.5
+ - perf: skip value escaping when unnecessary
+ * deps: raw-body@2.5.2
+
+1.20.1 / 2022-10-06
+===================
+
+ * deps: qs@6.11.0
+ * perf: remove unnecessary object clone
+
+1.20.0 / 2022-04-02
+===================
+
+ * Fix error message for json parse whitespace in `strict`
+ * Fix internal error when inflated body exceeds limit
+ * Prevent loss of async hooks context
+ * Prevent hanging when request already read
+ * deps: depd@2.0.0
+ - Replace internal `eval` usage with `Function` constructor
+ - Use instance methods on `process` to check for listeners
+ * deps: http-errors@2.0.0
+ - deps: depd@2.0.0
+ - deps: statuses@2.0.1
+ * deps: on-finished@2.4.1
+ * deps: qs@6.10.3
+ * deps: raw-body@2.5.1
+ - deps: http-errors@2.0.0
+
+1.19.2 / 2022-02-15
+===================
+
+ * deps: bytes@3.1.2
+ * deps: qs@6.9.7
+ * Fix handling of `__proto__` keys
+ * deps: raw-body@2.4.3
+ - deps: bytes@3.1.2
+
+1.19.1 / 2021-12-10
+===================
+
+ * deps: bytes@3.1.1
+ * deps: http-errors@1.8.1
+ - deps: inherits@2.0.4
+ - deps: toidentifier@1.0.1
+ - deps: setprototypeof@1.2.0
+ * deps: qs@6.9.6
+ * deps: raw-body@2.4.2
+ - deps: bytes@3.1.1
+ - deps: http-errors@1.8.1
+ * deps: safe-buffer@5.2.1
+ * deps: type-is@~1.6.18
+
+1.19.0 / 2019-04-25
+===================
+
+ * deps: bytes@3.1.0
+ - Add petabyte (`pb`) support
+ * deps: http-errors@1.7.2
+ - Set constructor name when possible
+ - deps: setprototypeof@1.1.1
+ - deps: statuses@'>= 1.5.0 < 2'
+ * deps: iconv-lite@0.4.24
+ - Added encoding MIK
+ * deps: qs@6.7.0
+ - Fix parsing array brackets after index
+ * deps: raw-body@2.4.0
+ - deps: bytes@3.1.0
+ - deps: http-errors@1.7.2
+ - deps: iconv-lite@0.4.24
+ * deps: type-is@~1.6.17
+ - deps: mime-types@~2.1.24
+ - perf: prevent internal `throw` on invalid type
+
+1.18.3 / 2018-05-14
+===================
+
+ * Fix stack trace for strict json parse error
+ * deps: depd@~1.1.2
+ - perf: remove argument reassignment
+ * deps: http-errors@~1.6.3
+ - deps: depd@~1.1.2
+ - deps: setprototypeof@1.1.0
+ - deps: statuses@'>= 1.3.1 < 2'
+ * deps: iconv-lite@0.4.23
+ - Fix loading encoding with year appended
+ - Fix deprecation warnings on Node.js 10+
+ * deps: qs@6.5.2
+ * deps: raw-body@2.3.3
+ - deps: http-errors@1.6.3
+ - deps: iconv-lite@0.4.23
+ * deps: type-is@~1.6.16
+ - deps: mime-types@~2.1.18
+
+1.18.2 / 2017-09-22
+===================
+
+ * deps: debug@2.6.9
+ * perf: remove argument reassignment
+
+1.18.1 / 2017-09-12
+===================
+
+ * deps: content-type@~1.0.4
+ - perf: remove argument reassignment
+ - perf: skip parameter parsing when no parameters
+ * deps: iconv-lite@0.4.19
+ - Fix ISO-8859-1 regression
+ - Update Windows-1255
+ * deps: qs@6.5.1
+ - Fix parsing & compacting very deep objects
+ * deps: raw-body@2.3.2
+ - deps: iconv-lite@0.4.19
+
+1.18.0 / 2017-09-08
+===================
+
+ * Fix JSON strict violation error to match native parse error
+ * Include the `body` property on verify errors
+ * Include the `type` property on all generated errors
+ * Use `http-errors` to set status code on errors
+ * deps: bytes@3.0.0
+ * deps: debug@2.6.8
+ * deps: depd@~1.1.1
+ - Remove unnecessary `Buffer` loading
+ * deps: http-errors@~1.6.2
+ - deps: depd@1.1.1
+ * deps: iconv-lite@0.4.18
+ - Add support for React Native
+ - Add a warning if not loaded as utf-8
+ - Fix CESU-8 decoding in Node.js 8
+ - Improve speed of ISO-8859-1 encoding
+ * deps: qs@6.5.0
+ * deps: raw-body@2.3.1
+ - Use `http-errors` for standard emitted errors
+ - deps: bytes@3.0.0
+ - deps: iconv-lite@0.4.18
+ - perf: skip buffer decoding on overage chunk
+ * perf: prevent internal `throw` when missing charset
+
+1.17.2 / 2017-05-17
+===================
+
+ * deps: debug@2.6.7
+ - Fix `DEBUG_MAX_ARRAY_LENGTH`
+ - deps: ms@2.0.0
+ * deps: type-is@~1.6.15
+ - deps: mime-types@~2.1.15
+
+1.17.1 / 2017-03-06
+===================
+
+ * deps: qs@6.4.0
+ - Fix regression parsing keys starting with `[`
+
+1.17.0 / 2017-03-01
+===================
+
+ * deps: http-errors@~1.6.1
+ - Make `message` property enumerable for `HttpError`s
+ - deps: setprototypeof@1.0.3
+ * deps: qs@6.3.1
+ - Fix compacting nested arrays
+
+1.16.1 / 2017-02-10
+===================
+
+ * deps: debug@2.6.1
+ - Fix deprecation messages in WebStorm and other editors
+ - Undeprecate `DEBUG_FD` set to `1` or `2`
+
+1.16.0 / 2017-01-17
+===================
+
+ * deps: debug@2.6.0
+ - Allow colors in workers
+ - Deprecated `DEBUG_FD` environment variable
+ - Fix error when running under React Native
+ - Use same color for same namespace
+ - deps: ms@0.7.2
+ * deps: http-errors@~1.5.1
+ - deps: inherits@2.0.3
+ - deps: setprototypeof@1.0.2
+ - deps: statuses@'>= 1.3.1 < 2'
+ * deps: iconv-lite@0.4.15
+ - Added encoding MS-31J
+ - Added encoding MS-932
+ - Added encoding MS-936
+ - Added encoding MS-949
+ - Added encoding MS-950
+ - Fix GBK/GB18030 handling of Euro character
+ * deps: qs@6.2.1
+ - Fix array parsing from skipping empty values
+ * deps: raw-body@~2.2.0
+ - deps: iconv-lite@0.4.15
+ * deps: type-is@~1.6.14
+ - deps: mime-types@~2.1.13
+
+1.15.2 / 2016-06-19
+===================
+
+ * deps: bytes@2.4.0
+ * deps: content-type@~1.0.2
+ - perf: enable strict mode
+ * deps: http-errors@~1.5.0
+ - Use `setprototypeof` module to replace `__proto__` setting
+ - deps: statuses@'>= 1.3.0 < 2'
+ - perf: enable strict mode
+ * deps: qs@6.2.0
+ * deps: raw-body@~2.1.7
+ - deps: bytes@2.4.0
+ - perf: remove double-cleanup on happy path
+ * deps: type-is@~1.6.13
+ - deps: mime-types@~2.1.11
+
+1.15.1 / 2016-05-05
+===================
+
+ * deps: bytes@2.3.0
+ - Drop partial bytes on all parsed units
+ - Fix parsing byte string that looks like hex
+ * deps: raw-body@~2.1.6
+ - deps: bytes@2.3.0
+ * deps: type-is@~1.6.12
+ - deps: mime-types@~2.1.10
+
+1.15.0 / 2016-02-10
+===================
+
+ * deps: http-errors@~1.4.0
+ - Add `HttpError` export, for `err instanceof createError.HttpError`
+ - deps: inherits@2.0.1
+ - deps: statuses@'>= 1.2.1 < 2'
+ * deps: qs@6.1.0
+ * deps: type-is@~1.6.11
+ - deps: mime-types@~2.1.9
+
+1.14.2 / 2015-12-16
+===================
+
+ * deps: bytes@2.2.0
+ * deps: iconv-lite@0.4.13
+ * deps: qs@5.2.0
+ * deps: raw-body@~2.1.5
+ - deps: bytes@2.2.0
+ - deps: iconv-lite@0.4.13
+ * deps: type-is@~1.6.10
+ - deps: mime-types@~2.1.8
+
+1.14.1 / 2015-09-27
+===================
+
+ * Fix issue where invalid charset results in 400 when `verify` used
+ * deps: iconv-lite@0.4.12
+ - Fix CESU-8 decoding in Node.js 4.x
+ * deps: raw-body@~2.1.4
+ - Fix masking critical errors from `iconv-lite`
+ - deps: iconv-lite@0.4.12
+ * deps: type-is@~1.6.9
+ - deps: mime-types@~2.1.7
+
+1.14.0 / 2015-09-16
+===================
+
+ * Fix JSON strict parse error to match syntax errors
+ * Provide static `require` analysis in `urlencoded` parser
+ * deps: depd@~1.1.0
+ - Support web browser loading
+ * deps: qs@5.1.0
+ * deps: raw-body@~2.1.3
+ - Fix sync callback when attaching data listener causes sync read
+ * deps: type-is@~1.6.8
+ - Fix type error when given invalid type to match against
+ - deps: mime-types@~2.1.6
+
+1.13.3 / 2015-07-31
+===================
+
+ * deps: type-is@~1.6.6
+ - deps: mime-types@~2.1.4
+
+1.13.2 / 2015-07-05
+===================
+
+ * deps: iconv-lite@0.4.11
+ * deps: qs@4.0.0
+ - Fix dropping parameters like `hasOwnProperty`
+ - Fix user-visible incompatibilities from 3.1.0
+ - Fix various parsing edge cases
+ * deps: raw-body@~2.1.2
+ - Fix error stack traces to skip `makeError`
+ - deps: iconv-lite@0.4.11
+ * deps: type-is@~1.6.4
+ - deps: mime-types@~2.1.2
+ - perf: enable strict mode
+ - perf: remove argument reassignment
+
+1.13.1 / 2015-06-16
+===================
+
+ * deps: qs@2.4.2
+ - Downgraded from 3.1.0 because of user-visible incompatibilities
+
+1.13.0 / 2015-06-14
+===================
+
+ * Add `statusCode` property on `Error`s, in addition to `status`
+ * Change `type` default to `application/json` for JSON parser
+ * Change `type` default to `application/x-www-form-urlencoded` for urlencoded parser
+ * Provide static `require` analysis
+ * Use the `http-errors` module to generate errors
+ * deps: bytes@2.1.0
+ - Slight optimizations
+ * deps: iconv-lite@0.4.10
+ - The encoding UTF-16 without BOM now defaults to UTF-16LE when detection fails
+ - Leading BOM is now removed when decoding
+ * deps: on-finished@~2.3.0
+ - Add defined behavior for HTTP `CONNECT` requests
+ - Add defined behavior for HTTP `Upgrade` requests
+ - deps: ee-first@1.1.1
+ * deps: qs@3.1.0
+ - Fix dropping parameters like `hasOwnProperty`
+ - Fix various parsing edge cases
+ - Parsed object now has `null` prototype
+ * deps: raw-body@~2.1.1
+ - Use `unpipe` module for unpiping requests
+ - deps: iconv-lite@0.4.10
+ * deps: type-is@~1.6.3
+ - deps: mime-types@~2.1.1
+ - perf: reduce try block size
+ - perf: remove bitwise operations
+ * perf: enable strict mode
+ * perf: remove argument reassignment
+ * perf: remove delete call
+
+1.12.4 / 2015-05-10
+===================
+
+ * deps: debug@~2.2.0
+ * deps: qs@2.4.2
+ - Fix allowing parameters like `constructor`
+ * deps: on-finished@~2.2.1
+ * deps: raw-body@~2.0.1
+ - Fix a false-positive when unpiping in Node.js 0.8
+ - deps: bytes@2.0.1
+ * deps: type-is@~1.6.2
+ - deps: mime-types@~2.0.11
+
+1.12.3 / 2015-04-15
+===================
+
+ * Slight efficiency improvement when not debugging
+ * deps: depd@~1.0.1
+ * deps: iconv-lite@0.4.8
+ - Add encoding alias UNICODE-1-1-UTF-7
+ * deps: raw-body@1.3.4
+ - Fix hanging callback if request aborts during read
+ - deps: iconv-lite@0.4.8
+
+1.12.2 / 2015-03-16
+===================
+
+ * deps: qs@2.4.1
+ - Fix error when parameter `hasOwnProperty` is present
+
+1.12.1 / 2015-03-15
+===================
+
+ * deps: debug@~2.1.3
+ - Fix high intensity foreground color for bold
+ - deps: ms@0.7.0
+ * deps: type-is@~1.6.1
+ - deps: mime-types@~2.0.10
+
+1.12.0 / 2015-02-13
+===================
+
+ * add `debug` messages
+ * accept a function for the `type` option
+ * use `content-type` to parse `Content-Type` headers
+ * deps: iconv-lite@0.4.7
+ - Gracefully support enumerables on `Object.prototype`
+ * deps: raw-body@1.3.3
+ - deps: iconv-lite@0.4.7
+ * deps: type-is@~1.6.0
+ - fix argument reassignment
+ - fix false-positives in `hasBody` `Transfer-Encoding` check
+ - support wildcard for both type and subtype (`*/*`)
+ - deps: mime-types@~2.0.9
+
+1.11.0 / 2015-01-30
+===================
+
+ * make internal `extended: true` depth limit infinity
+ * deps: type-is@~1.5.6
+ - deps: mime-types@~2.0.8
+
+1.10.2 / 2015-01-20
+===================
+
+ * deps: iconv-lite@0.4.6
+ - Fix rare aliases of single-byte encodings
+ * deps: raw-body@1.3.2
+ - deps: iconv-lite@0.4.6
+
+1.10.1 / 2015-01-01
+===================
+
+ * deps: on-finished@~2.2.0
+ * deps: type-is@~1.5.5
+ - deps: mime-types@~2.0.7
+
+1.10.0 / 2014-12-02
+===================
+
+ * make internal `extended: true` array limit dynamic
+
+1.9.3 / 2014-11-21
+==================
+
+ * deps: iconv-lite@0.4.5
+ - Fix Windows-31J and X-SJIS encoding support
+ * deps: qs@2.3.3
+ - Fix `arrayLimit` behavior
+ * deps: raw-body@1.3.1
+ - deps: iconv-lite@0.4.5
+ * deps: type-is@~1.5.3
+ - deps: mime-types@~2.0.3
+
+1.9.2 / 2014-10-27
+==================
+
+ * deps: qs@2.3.2
+ - Fix parsing of mixed objects and values
+
+1.9.1 / 2014-10-22
+==================
+
+ * deps: on-finished@~2.1.1
+ - Fix handling of pipelined requests
+ * deps: qs@2.3.0
+ - Fix parsing of mixed implicit and explicit arrays
+ * deps: type-is@~1.5.2
+ - deps: mime-types@~2.0.2
+
+1.9.0 / 2014-09-24
+==================
+
+ * include the charset in "unsupported charset" error message
+ * include the encoding in "unsupported content encoding" error message
+ * deps: depd@~1.0.0
+
+1.8.4 / 2014-09-23
+==================
+
+ * fix content encoding to be case-insensitive
+
+1.8.3 / 2014-09-19
+==================
+
+ * deps: qs@2.2.4
+ - Fix issue with object keys starting with numbers truncated
+
+1.8.2 / 2014-09-15
+==================
+
+ * deps: depd@0.4.5
+
+1.8.1 / 2014-09-07
+==================
+
+ * deps: media-typer@0.3.0
+ * deps: type-is@~1.5.1
+
+1.8.0 / 2014-09-05
+==================
+
+ * make empty-body-handling consistent between chunked requests
+ - empty `json` produces `{}`
+ - empty `raw` produces `new Buffer(0)`
+ - empty `text` produces `''`
+ - empty `urlencoded` produces `{}`
+ * deps: qs@2.2.3
+ - Fix issue where first empty value in array is discarded
+ * deps: type-is@~1.5.0
+ - fix `hasbody` to be true for `content-length: 0`
+
+1.7.0 / 2014-09-01
+==================
+
+ * add `parameterLimit` option to `urlencoded` parser
+ * change `urlencoded` extended array limit to 100
+ * respond with 413 when over `parameterLimit` in `urlencoded`
+
+1.6.7 / 2014-08-29
+==================
+
+ * deps: qs@2.2.2
+ - Remove unnecessary cloning
+
+1.6.6 / 2014-08-27
+==================
+
+ * deps: qs@2.2.0
+ - Array parsing fix
+ - Performance improvements
+
+1.6.5 / 2014-08-16
+==================
+
+ * deps: on-finished@2.1.0
+
+1.6.4 / 2014-08-14
+==================
+
+ * deps: qs@1.2.2
+
+1.6.3 / 2014-08-10
+==================
+
+ * deps: qs@1.2.1
+
+1.6.2 / 2014-08-07
+==================
+
+ * deps: qs@1.2.0
+ - Fix parsing array of objects
+
+1.6.1 / 2014-08-06
+==================
+
+ * deps: qs@1.1.0
+ - Accept urlencoded square brackets
+ - Accept empty values in implicit array notation
+
+1.6.0 / 2014-08-05
+==================
+
+ * deps: qs@1.0.2
+ - Complete rewrite
+ - Limits array length to 20
+ - Limits object depth to 5
+ - Limits parameters to 1,000
+
+1.5.2 / 2014-07-27
+==================
+
+ * deps: depd@0.4.4
+ - Work-around v8 generating empty stack traces
+
+1.5.1 / 2014-07-26
+==================
+
+ * deps: depd@0.4.3
+ - Fix exception when global `Error.stackTraceLimit` is too low
+
+1.5.0 / 2014-07-20
+==================
+
+ * deps: depd@0.4.2
+ - Add `TRACE_DEPRECATION` environment variable
+ - Remove non-standard grey color from color output
+ - Support `--no-deprecation` argument
+ - Support `--trace-deprecation` argument
+ * deps: iconv-lite@0.4.4
+ - Added encoding UTF-7
+ * deps: raw-body@1.3.0
+ - deps: iconv-lite@0.4.4
+ - Added encoding UTF-7
+ - Fix `Cannot switch to old mode now` error on Node.js 0.10+
+ * deps: type-is@~1.3.2
+
+1.4.3 / 2014-06-19
+==================
+
+ * deps: type-is@1.3.1
+ - fix global variable leak
+
+1.4.2 / 2014-06-19
+==================
+
+ * deps: type-is@1.3.0
+ - improve type parsing
+
+1.4.1 / 2014-06-19
+==================
+
+ * fix urlencoded extended deprecation message
+
+1.4.0 / 2014-06-19
+==================
+
+ * add `text` parser
+ * add `raw` parser
+ * check accepted charset in content-type (accepts utf-8)
+ * check accepted encoding in content-encoding (accepts identity)
+ * deprecate `bodyParser()` middleware; use `.json()` and `.urlencoded()` as needed
+ * deprecate `urlencoded()` without provided `extended` option
+ * lazy-load urlencoded parsers
+ * parsers split into files for reduced mem usage
+ * support gzip and deflate bodies
+ - set `inflate: false` to turn off
+ * deps: raw-body@1.2.2
+ - Support all encodings from `iconv-lite`
+
+1.3.1 / 2014-06-11
+==================
+
+ * deps: type-is@1.2.1
+ - Switch dependency from mime to mime-types@1.0.0
+
+1.3.0 / 2014-05-31
+==================
+
+ * add `extended` option to urlencoded parser
+
+1.2.2 / 2014-05-27
+==================
+
+ * deps: raw-body@1.1.6
+ - assert stream encoding on node.js 0.8
+ - assert stream encoding on node.js < 0.10.6
+ - deps: bytes@1
+
+1.2.1 / 2014-05-26
+==================
+
+ * invoke `next(err)` after request fully read
+ - prevents hung responses and socket hang ups
+
+1.2.0 / 2014-05-11
+==================
+
+ * add `verify` option
+ * deps: type-is@1.2.0
+ - support suffix matching
+
+1.1.2 / 2014-05-11
+==================
+
+ * improve json parser speed
+
+1.1.1 / 2014-05-11
+==================
+
+ * fix repeated limit parsing with every request
+
+1.1.0 / 2014-05-10
+==================
+
+ * add `type` option
+ * deps: pin for safety and consistency
+
+1.0.2 / 2014-04-14
+==================
+
+ * use `type-is` module
+
+1.0.1 / 2014-03-20
+==================
+
+ * lower default limits to 100kb
diff --git a/node_modules/body-parser/LICENSE b/node_modules/body-parser/LICENSE
new file mode 100644
index 00000000..386b7b69
--- /dev/null
+++ b/node_modules/body-parser/LICENSE
@@ -0,0 +1,23 @@
+(The MIT License)
+
+Copyright (c) 2014 Jonathan Ong bignumber.js
+ +A JavaScript library for arbitrary-precision arithmetic.
+ + +API
+ ++ See the README on GitHub for a + quick-start introduction. +
+
+ In all examples below, var and semicolons are not shown, and if a commented-out
+ value is in quotes it means toString has been called on the preceding expression.
+
CONSTRUCTOR
+ + +
+ BigNumberBigNumber(n [, base]) ⇒ BigNumber
+
+
+ n: number|string|BigNumber
+ base: number: integer, 2 to 36 inclusive. (See
+ ALPHABET to extend this range).
+
+ Returns a new instance of a BigNumber object with value n, where n
+ is a numeric value in the specified base, or base 10 if
+ base is omitted or is null or undefined.
+
+x = new BigNumber(123.4567) // '123.4567' +// 'new' is optional +y = BigNumber(x) // '123.4567'+
+ If n is a base 10 value it can be in normal (fixed-point) or
+ exponential notation. Values in other bases must be in normal notation. Values in any base can
+ have fraction digits, i.e. digits after the decimal point.
+
+new BigNumber(43210) // '43210'
+new BigNumber('4.321e+4') // '43210'
+new BigNumber('-735.0918e-430') // '-7.350918e-428'
+new BigNumber('123412421.234324', 5) // '607236.557696'
+
+ Signed 0, signed Infinity and NaN are supported.
+
+new BigNumber('-Infinity') // '-Infinity'
+new BigNumber(NaN) // 'NaN'
+new BigNumber(-0) // '0'
+new BigNumber('.5') // '0.5'
+new BigNumber('+2') // '2'
+
+ String values in hexadecimal literal form, e.g. '0xff', are valid, as are
+ string values with the octal and binary prefixs '0o' and '0b'.
+ String values in octal literal form without the prefix will be interpreted as
+ decimals, e.g. '011' is interpreted as 11, not 9.
+
+new BigNumber(-10110100.1, 2) // '-180.5'
+new BigNumber('-0b10110100.1') // '-180.5'
+new BigNumber('ff.8', 16) // '255.5'
+new BigNumber('0xff.8') // '255.5'
+
+ If a base is specified, n is rounded according to the current
+ DECIMAL_PLACES and
+ ROUNDING_MODE settings. This includes base
+ 10 so don't include a base parameter for decimal values unless
+ this behaviour is wanted.
+
BigNumber.config({ DECIMAL_PLACES: 5 })
+new BigNumber(1.23456789) // '1.23456789'
+new BigNumber(1.23456789, 10) // '1.23457'
+ An error is thrown if base is invalid. See Errors.
+ There is no limit to the number of digits of a value of type string (other than
+ that of JavaScript's maximum array size). See RANGE to set
+ the maximum and minimum possible exponent value of a BigNumber.
+
+new BigNumber('5032485723458348569331745.33434346346912144534543')
+new BigNumber('4.321e10000000')
+ BigNumber NaN is returned if n is invalid
+ (unless BigNumber.DEBUG is true, see below).
+new BigNumber('.1*') // 'NaN'
+new BigNumber('blurgh') // 'NaN'
+new BigNumber(9, 2) // 'NaN'
+
+ To aid in debugging, if BigNumber.DEBUG is true then an error will
+ be thrown on an invalid n. An error will also be thrown if n is of
+ type number with more than 15 significant digits, as calling
+ toString or valueOf on
+ these numbers may not result in the intended value.
+
+console.log(823456789123456.3) // 823456789123456.2 +new BigNumber(823456789123456.3) // '823456789123456.2' +BigNumber.DEBUG = true +// '[BigNumber Error] Number primitive has more than 15 significant digits' +new BigNumber(823456789123456.3) +// '[BigNumber Error] Not a base 2 number' +new BigNumber(9, 2)+
+ A BigNumber can also be created from an object literal.
+ Use isBigNumber to check that it is well-formed.
+
new BigNumber({ s: 1, e: 2, c: [ 777, 12300000000000 ], _isBigNumber: true }) // '777.123'
+
+
+
+
+ Methods
+The static methods of a BigNumber constructor.
+ + + + +clone
+ .clone([object]) ⇒ BigNumber constructor
+
+ object: object
+ Returns a new independent BigNumber constructor with configuration as described by
+ object (see config), or with the default
+ configuration if object is null or undefined.
+
+ Throws if object is not an object. See Errors.
+
BigNumber.config({ DECIMAL_PLACES: 5 })
+BN = BigNumber.clone({ DECIMAL_PLACES: 9 })
+
+x = new BigNumber(1)
+y = new BN(1)
+
+x.div(3) // 0.33333
+y.div(3) // 0.333333333
+
+// BN = BigNumber.clone({ DECIMAL_PLACES: 9 }) is equivalent to:
+BN = BigNumber.clone()
+BN.config({ DECIMAL_PLACES: 9 })
+
+
+
+ configset([object]) ⇒ object
+
+ object: object: an object that contains some or all of the following
+ properties.
+
Configures the settings for this particular BigNumber constructor.
+ +-
+
DECIMAL_PLACES
+ -
+ number: integer,
0to1e+9inclusive
+ Default value:20+
+ -
+ The maximum number of decimal places of the results of operations involving
+ division, i.e. division, square root and base conversion operations, and power
+ operations with negative exponents.
+
+ -
+
BigNumber.config({ DECIMAL_PLACES: 5 }) +BigNumber.set({ DECIMAL_PLACES: 5 }) // equivalent+
+
+
+
+ ROUNDING_MODE
+ -
+ number: integer,
0to8inclusive
+ Default value:4(ROUND_HALF_UP) +
+ -
+ The rounding mode used in the above operations and the default rounding mode of
+
decimalPlaces, +precision, +toExponential, +toFixed, +toFormatand +toPrecision. +
+ - The modes are available as enumerated properties of the BigNumber constructor. +
-
+
BigNumber.config({ ROUNDING_MODE: 0 }) +BigNumber.set({ ROUNDING_MODE: BigNumber.ROUND_UP }) // equivalent+
+
+
+
+ EXPONENTIAL_AT
+ -
+ number: integer, magnitude
0to1e+9inclusive, or +
+ number[]: [ integer-1e+9to0inclusive, integer +0to1e+9inclusive ]
+ Default value:[-7, 20]+
+ -
+ The exponent value(s) at which
toStringreturns exponential notation. +
+ -
+ If a single number is assigned, the value is the exponent magnitude.
+ If an array of two numbers is assigned then the first number is the negative exponent + value at and beneath which exponential notation is used, and the second number is the + positive exponent value at and above which the same. +
+ -
+ For example, to emulate JavaScript numbers in terms of the exponent values at which they
+ begin to use exponential notation, use
[-7, 20]. +
+ -
+
BigNumber.config({ EXPONENTIAL_AT: 2 }) +new BigNumber(12.3) // '12.3' e is only 1 +new BigNumber(123) // '1.23e+2' +new BigNumber(0.123) // '0.123' e is only -1 +new BigNumber(0.0123) // '1.23e-2' + +BigNumber.config({ EXPONENTIAL_AT: [-7, 20] }) +new BigNumber(123456789) // '123456789' e is only 8 +new BigNumber(0.000000123) // '1.23e-7' + +// Almost never return exponential notation: +BigNumber.config({ EXPONENTIAL_AT: 1e+9 }) + +// Always return exponential notation: +BigNumber.config({ EXPONENTIAL_AT: 0 })+
+ -
+ Regardless of the value of
EXPONENTIAL_AT, thetoFixedmethod + will always return a value in normal notation and thetoExponentialmethod + will always return a value in exponential form. +
+ -
+ Calling
toStringwith a base argument, e.g.toString(10), will + also always return normal notation. +
+
+
+
+ RANGE
+ -
+ number: integer, magnitude
1to1e+9inclusive, or +
+ number[]: [ integer-1e+9to-1inclusive, integer +1to1e+9inclusive ]
+ Default value:[-1e+9, 1e+9]+
+ -
+ The exponent value(s) beyond which overflow to
Infinityand underflow to + zero occurs. +
+ -
+ If a single number is assigned, it is the maximum exponent magnitude: values wth a
+ positive exponent of greater magnitude become
Infinityand those with a + negative exponent of greater magnitude become zero. +- + If an array of two numbers is assigned then the first number is the negative exponent + limit and the second number is the positive exponent limit. +
+- + For example, to emulate JavaScript numbers in terms of the exponent values at which they + become zero and
+Infinity, use[-324, 308]. +- +
+BigNumber.config({ RANGE: 500 }) +BigNumber.config().RANGE // [ -500, 500 ] +new BigNumber('9.999e499') // '9.999e+499' +new BigNumber('1e500') // 'Infinity' +new BigNumber('1e-499') // '1e-499' +new BigNumber('1e-500') // '0' + +BigNumber.config({ RANGE: [-3, 4] }) +new BigNumber(99999) // '99999' e is only 4 +new BigNumber(100000) // 'Infinity' e is 5 +new BigNumber(0.001) // '0.01' e is only -3 +new BigNumber(0.0001) // '0' e is -4+- + The largest possible magnitude of a finite BigNumber is +
+ + + +9.999...e+1000000000.
+ The smallest possible magnitude of a non-zero BigNumber is1e-1000000000. + CRYPTO
+ -
+ boolean:
trueorfalse.
+ Default value:false+
+ - + The value that determines whether cryptographically-secure pseudo-random number + generation is used. + +
-
+ If
CRYPTOis set totruethen the +randommethod will generate random digits using +crypto.getRandomValuesin browsers that support it, or +crypto.randomBytesif using Node.js. +
+ -
+ If neither function is supported by the host environment then attempting to set
+
CRYPTOtotruewill fail and an exception will be thrown. +
+ -
+ If
CRYPTOisfalsethen the source of randomness used will be +Math.random(which is assumed to generate at least30bits of + randomness). +
+ - See
random.
+ -
+
+// Node.js +global.crypto = require('crypto') + +BigNumber.config({ CRYPTO: true }) +BigNumber.config().CRYPTO // true +BigNumber.random() // 0.54340758610486147524+
+
+
+
+ MODULO_MODE
+ -
+ number: integer,
0to9inclusive
+ Default value:1(ROUND_DOWN) +
+ - The modulo mode used when calculating the modulus:
a mod n.
+ -
+ The quotient,
q = a / n, is calculated according to the +ROUNDING_MODEthat corresponds to the chosen +MODULO_MODE. +
+ - The remainder,
r, is calculated as:r = a - n * q.
+ - + The modes that are most commonly used for the modulus/remainder operation are shown in + the following table. Although the other rounding modes can be used, they may not give + useful results. + +
-
+
+
+Property Value Description + +ROUND_UP 0 ++ The remainder is positive if the dividend is negative, otherwise it is negative. + ++ +ROUND_DOWN 1 ++ The remainder has the same sign as the dividend. +
+ This uses 'truncating division' and matches the behaviour of JavaScript's + remainder operator%. ++ +ROUND_FLOOR 3 ++ The remainder has the same sign as the divisor. +
+ This matches Python's%operator. ++ +ROUND_HALF_EVEN 6 +The IEEE 754 remainder function. ++ +EUCLID 9 ++ The remainder is always positive. Euclidian division: +
+q = sign(n) * floor(a / abs(n))+
+ - + The rounding/modulo modes are available as enumerated properties of the BigNumber + constructor. + +
- See
modulo.
+ -
+
BigNumber.config({ MODULO_MODE: BigNumber.EUCLID }) +BigNumber.config({ MODULO_MODE: 9 }) // equivalent+
+
+
+
+ POW_PRECISION
+ -
+ number: integer,
0to1e+9inclusive.
+ Default value:0+
+ - + The maximum precision, i.e. number of significant digits, of the result of the power + operation (unless a modulus is specified). + +
- If set to
0, the number of significant digits will not be limited.
+ - See
exponentiatedBy.
+ BigNumber.config({ POW_PRECISION: 100 })
+
+
+
+ FORMAT
+ - object +
-
+ The
FORMATobject configures the format of the string returned by the +toFormatmethod. +
+ -
+ The example below shows the properties of the
FORMATobject that are + recognised, and their default values. +
+ -
+ Unlike the other configuration properties, the values of the properties of the
+
FORMATobject will not be checked for validity. The existing +FORMATobject will simply be replaced by the object that is passed in. + The object can include any number of the properties shown below. +
+ - See
toFormatfor examples of usage.
+ -
+
+BigNumber.config({ + FORMAT: { + // string to prepend + prefix: '', + // decimal separator + decimalSeparator: '.', + // grouping separator of the integer part + groupSeparator: ',', + // primary grouping size of the integer part + groupSize: 3, + // secondary grouping size of the integer part + secondaryGroupSize: 0, + // grouping separator of the fraction part + fractionGroupSeparator: ' ', + // grouping size of the fraction part + fractionGroupSize: 0, + // string to append + suffix: '' + } +});+
+
+
+
+ ALPHABET
+ -
+ string
+ Default value:'0123456789abcdefghijklmnopqrstuvwxyz'+
+ -
+ The alphabet used for base conversion. The length of the alphabet corresponds to the
+ maximum value of the base argument that can be passed to the
+
BigNumberconstructor or +toString. +
+ -
+ There is no maximum length for the alphabet, but it must be at least 2 characters long, and
+ it must not contain whitespace or a repeated character, or the sign indicators
+
'+'and'-', or the decimal separator'.'. +
+ -
+
// duodecimal (base 12) +BigNumber.config({ ALPHABET: '0123456789TE' }) +x = new BigNumber('T', 12) +x.toString() // '10' +x.toString(12) // 'T'+
+
+
+
+
+
Returns an object with the above properties and their current values.
+
+ Throws if object is not an object, or if an invalid value is assigned to
+ one or more of the above properties. See Errors.
+
+BigNumber.config({
+ DECIMAL_PLACES: 40,
+ ROUNDING_MODE: BigNumber.ROUND_HALF_CEIL,
+ EXPONENTIAL_AT: [-10, 20],
+ RANGE: [-500, 500],
+ CRYPTO: true,
+ MODULO_MODE: BigNumber.ROUND_FLOOR,
+ POW_PRECISION: 80,
+ FORMAT: {
+ groupSize: 3,
+ groupSeparator: ' ',
+ decimalSeparator: ','
+ },
+ ALPHABET: '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ$_'
+});
+
+obj = BigNumber.config();
+obj.DECIMAL_PLACES // 40
+obj.RANGE // [-500, 500]
+
+
+
+
+ isBigNumber.isBigNumber(value) ⇒ boolean
+
+ value: any
+ Returns true if value is a BigNumber instance, otherwise returns
+ false.
+
x = 42 +y = new BigNumber(x) + +BigNumber.isBigNumber(x) // false +y instanceof BigNumber // true +BigNumber.isBigNumber(y) // true + +BN = BigNumber.clone(); +z = new BN(x) +z instanceof BigNumber // false +BigNumber.isBigNumber(z) // true+
+ If value is a BigNumber instance and BigNumber.DEBUG is true,
+ then this method will also check if value is well-formed, and throw if it is not.
+ See Errors.
+
+ The check can be useful if creating a BigNumber from an object literal. + See BigNumber. +
++x = new BigNumber(10) + +// Change x.c to an illegitimate value. +x.c = NaN + +BigNumber.DEBUG = false + +// No error. +BigNumber.isBigNumber(x) // true + +BigNumber.DEBUG = true + +// Error. +BigNumber.isBigNumber(x) // '[BigNumber Error] Invalid BigNumber'+ + + +
maximum.max(n...) ⇒ BigNumber
+
+ n: number|string|BigNumber
+ See BigNumber for further parameter details.
+
+ Returns a BigNumber whose value is the maximum of the arguments. +
+The return value is always exact and unrounded.
+x = new BigNumber('3257869345.0378653')
+BigNumber.maximum(4e9, x, '123456789.9') // '4000000000'
+
+arr = [12, '13', new BigNumber(14)]
+BigNumber.max.apply(null, arr) // '14'
+
+
+
+ minimum.min(n...) ⇒ BigNumber
+
+ n: number|string|BigNumber
+ See BigNumber for further parameter details.
+
+ Returns a BigNumber whose value is the minimum of the arguments. +
+The return value is always exact and unrounded.
+x = new BigNumber('3257869345.0378653')
+BigNumber.minimum(4e9, x, '123456789.9') // '123456789.9'
+
+arr = [2, new BigNumber(-14), '-15.9999', -12]
+BigNumber.min.apply(null, arr) // '-15.9999'
+
+
+
+
+ random.random([dp]) ⇒ BigNumber
+
+ dp: number: integer, 0 to 1e+9 inclusive
+ Returns a new BigNumber with a pseudo-random value equal to or greater than 0 and
+ less than 1.
+
+ The return value will have dp decimal places (or less if trailing zeros are
+ produced).
+ If dp is omitted then the number of decimal places will default to the current
+ DECIMAL_PLACES setting.
+
+ Depending on the value of this BigNumber constructor's
+ CRYPTO setting and the support for the
+ crypto object in the host environment, the random digits of the return value are
+ generated by either Math.random (fastest), crypto.getRandomValues
+ (Web Cryptography API in recent browsers) or crypto.randomBytes (Node.js).
+
+ To be able to set CRYPTO to true when using
+ Node.js, the crypto object must be available globally:
+
global.crypto = require('crypto')
+
+ If CRYPTO is true, i.e. one of the
+ crypto methods is to be used, the value of a returned BigNumber should be
+ cryptographically-secure and statistically indistinguishable from a random value.
+
+ Throws if dp is invalid. See Errors.
+
BigNumber.config({ DECIMAL_PLACES: 10 })
+BigNumber.random() // '0.4117936847'
+BigNumber.random(20) // '0.78193327636914089009'
+
+
+
+ sum.sum(n...) ⇒ BigNumber
+
+ n: number|string|BigNumber
+ See BigNumber for further parameter details.
+
Returns a BigNumber whose value is the sum of the arguments.
+The return value is always exact and unrounded.
+x = new BigNumber('3257869345.0378653')
+BigNumber.sum(4e9, x, '123456789.9') // '7381326134.9378653'
+
+arr = [2, new BigNumber(14), '15.9999', 12]
+BigNumber.sum.apply(null, arr) // '43.9999'
+
+
+
+ Properties
+
+ The library's enumerated rounding modes are stored as properties of the constructor.
+ (They are not referenced internally by the library itself.)
+
+ Rounding modes 0 to 6 (inclusive) are the same as those of Java's
+ BigDecimal class.
+
| Property | +Value | +Description | +
|---|---|---|
| ROUND_UP | +0 | +Rounds away from zero | +
| ROUND_DOWN | +1 | +Rounds towards zero | +
| ROUND_CEIL | +2 | +Rounds towards Infinity |
+
| ROUND_FLOOR | +3 | +Rounds towards -Infinity |
+
| ROUND_HALF_UP | +4 | +
+ Rounds towards nearest neighbour. + If equidistant, rounds away from zero + |
+
| ROUND_HALF_DOWN | +5 | +
+ Rounds towards nearest neighbour. + If equidistant, rounds towards zero + |
+
| ROUND_HALF_EVEN | +6 | +
+ Rounds towards nearest neighbour. + If equidistant, rounds towards even neighbour + |
+
| ROUND_HALF_CEIL | +7 | +
+ Rounds towards nearest neighbour. + If equidistant, rounds towards Infinity
+ |
+
| ROUND_HALF_FLOOR | +8 | +
+ Rounds towards nearest neighbour. + If equidistant, rounds towards -Infinity
+ |
+
+BigNumber.config({ ROUNDING_MODE: BigNumber.ROUND_CEIL })
+BigNumber.config({ ROUNDING_MODE: 2 }) // equivalent
+
+ DEBUG
+undefined|false|true
+
+ If BigNumber.DEBUG is set true then an error will be thrown
+ if this BigNumber constructor receives an invalid value, such as
+ a value of type number with more than 15 significant digits.
+ See BigNumber.
+
+ An error will also be thrown if the isBigNumber
+ method receives a BigNumber that is not well-formed.
+ See isBigNumber.
+
BigNumber.DEBUG = true+ + +
INSTANCE
+ + +Methods
+The methods inherited by a BigNumber instance from its constructor's prototype object.
+A BigNumber is immutable in the sense that it is not changed by its methods.
+
+ The treatment of ±0, ±Infinity and NaN is
+ consistent with how JavaScript treats these values.
+
Many method names have a shorter alias.
+ + + +absoluteValue.abs() ⇒ BigNumber
+ + Returns a BigNumber whose value is the absolute value, i.e. the magnitude, of the value of + this BigNumber. +
+The return value is always exact and unrounded.
++x = new BigNumber(-0.8) +y = x.absoluteValue() // '0.8' +z = y.abs() // '0.8'+ + + +
+ comparedTo.comparedTo(n [, base]) ⇒ number
+
+
+ n: number|string|BigNumber
+ base: number
+ See BigNumber for further parameter details.
+
| Returns | |
|---|---|
1 |
+ If the value of this BigNumber is greater than the value of n |
+
-1 |
+ If the value of this BigNumber is less than the value of n |
+
0 |
+ If this BigNumber and n have the same value |
+
null |
+ If the value of either this BigNumber or n is NaN |
+
+x = new BigNumber(Infinity)
+y = new BigNumber(5)
+x.comparedTo(y) // 1
+x.comparedTo(x.minus(1)) // 0
+y.comparedTo(NaN) // null
+y.comparedTo('110', 2) // -1
+
+
+
+
+ decimalPlaces.dp([dp [, rm]]) ⇒ BigNumber|number
+
+
+ dp: number: integer, 0 to 1e+9 inclusive
+ rm: number: integer, 0 to 8 inclusive
+
+ If dp is a number, returns a BigNumber whose value is the value of this BigNumber
+ rounded by rounding mode rm to a maximum of dp decimal places.
+
+ If dp is omitted, or is null or undefined, the return
+ value is the number of decimal places of the value of this BigNumber, or null if
+ the value of this BigNumber is ±Infinity or NaN.
+
+ If rm is omitted, or is null or undefined,
+ ROUNDING_MODE is used.
+
+ Throws if dp or rm is invalid. See Errors.
+
+x = new BigNumber(1234.56)
+x.decimalPlaces(1) // '1234.6'
+x.dp() // 2
+x.decimalPlaces(2) // '1234.56'
+x.dp(10) // '1234.56'
+x.decimalPlaces(0, 1) // '1234'
+x.dp(0, 6) // '1235'
+x.decimalPlaces(1, 1) // '1234.5'
+x.dp(1, BigNumber.ROUND_HALF_EVEN) // '1234.6'
+x // '1234.56'
+y = new BigNumber('9.9e-101')
+y.dp() // 102
+
+
+
+ dividedBy.div(n [, base]) ⇒ BigNumber
+
+
+ n: number|string|BigNumber
+ base: number
+ See BigNumber for further parameter details.
+
+ Returns a BigNumber whose value is the value of this BigNumber divided by
+ n, rounded according to the current
+ DECIMAL_PLACES and
+ ROUNDING_MODE settings.
+
+x = new BigNumber(355) +y = new BigNumber(113) +x.dividedBy(y) // '3.14159292035398230088' +x.div(5) // '71' +x.div(47, 16) // '5'+ + + +
+ dividedToIntegerBy.idiv(n [, base]) ⇒
+ BigNumber
+
+
+ n: number|string|BigNumber
+ base: number
+ See BigNumber for further parameter details.
+
+ Returns a BigNumber whose value is the integer part of dividing the value of this BigNumber by
+ n.
+
+x = new BigNumber(5)
+y = new BigNumber(3)
+x.dividedToIntegerBy(y) // '1'
+x.idiv(0.7) // '7'
+x.idiv('0.f', 16) // '5'
+
+
+
+
+ exponentiatedBy.pow(n [, m]) ⇒ BigNumber
+
+
+ n: number|string|BigNumber: integer
+ m: number|string|BigNumber
+
+ Returns a BigNumber whose value is the value of this BigNumber exponentiated by
+ n, i.e. raised to the power n, and optionally modulo a modulus
+ m.
+
+ Throws if n is not an integer. See Errors.
+
+ If n is negative the result is rounded according to the current
+ DECIMAL_PLACES and
+ ROUNDING_MODE settings.
+
+ As the number of digits of the result of the power operation can grow so large so quickly,
+ e.g. 123.45610000 has over 50000 digits, the number of significant
+ digits calculated is limited to the value of the
+ POW_PRECISION setting (unless a modulus
+ m is specified).
+
+ By default POW_PRECISION is set to 0.
+ This means that an unlimited number of significant digits will be calculated, and that the
+ method's performance will decrease dramatically for larger exponents.
+
+ If m is specified and the value of m, n and this
+ BigNumber are integers, and n is positive, then a fast modular exponentiation
+ algorithm is used, otherwise the operation will be performed as
+ x.exponentiatedBy(n).modulo(m) with a
+ POW_PRECISION of 0.
+
+Math.pow(0.7, 2) // 0.48999999999999994 +x = new BigNumber(0.7) +x.exponentiatedBy(2) // '0.49' +BigNumber(3).pow(-2) // '0.11111111111111111111'+ + + +
+ integerValue.integerValue([rm]) ⇒ BigNumber
+
+
+ rm: number: integer, 0 to 8 inclusive
+
+ Returns a BigNumber whose value is the value of this BigNumber rounded to an integer using
+ rounding mode rm.
+
+ If rm is omitted, or is null or undefined,
+ ROUNDING_MODE is used.
+
+ Throws if rm is invalid. See Errors.
+
+x = new BigNumber(123.456) +x.integerValue() // '123' +x.integerValue(BigNumber.ROUND_CEIL) // '124' +y = new BigNumber(-12.7) +y.integerValue() // '-13' +y.integerValue(BigNumber.ROUND_DOWN) // '-12'+
+ The following is an example of how to add a prototype method that emulates JavaScript's
+ Math.round function. Math.ceil, Math.floor and
+ Math.trunc can be emulated in the same way with
+ BigNumber.ROUND_CEIL, BigNumber.ROUND_FLOOR and
+ BigNumber.ROUND_DOWN respectively.
+
+BigNumber.prototype.round = function (n) {
+ return n.integerValue(BigNumber.ROUND_HALF_CEIL);
+};
+x.round() // '123'
+
+
+
+ isEqualTo.eq(n [, base]) ⇒ boolean
+
+ n: number|string|BigNumber
+ base: number
+ See BigNumber for further parameter details.
+
+ Returns true if the value of this BigNumber is equal to the value of
+ n, otherwise returns false.
+ As with JavaScript, NaN does not equal NaN.
+
Note: This method uses the comparedTo method internally.
+0 === 1e-324 // true
+x = new BigNumber(0)
+x.isEqualTo('1e-324') // false
+BigNumber(-0).eq(x) // true ( -0 === 0 )
+BigNumber(255).eq('ff', 16) // true
+
+y = new BigNumber(NaN)
+y.isEqualTo(NaN) // false
+
+
+
+ isFinite.isFinite() ⇒ boolean
+
+ Returns true if the value of this BigNumber is a finite number, otherwise
+ returns false.
+
+ The only possible non-finite values of a BigNumber are NaN, Infinity
+ and -Infinity.
+
+x = new BigNumber(1) +x.isFinite() // true +y = new BigNumber(Infinity) +y.isFinite() // false+
+ Note: The native method isFinite() can be used if
+ n <= Number.MAX_VALUE.
+
isGreaterThan.gt(n [, base]) ⇒ boolean
+
+ n: number|string|BigNumber
+ base: number
+ See BigNumber for further parameter details.
+
+ Returns true if the value of this BigNumber is greater than the value of
+ n, otherwise returns false.
+
Note: This method uses the comparedTo method internally.
+0.1 > (0.3 - 0.2) // true +x = new BigNumber(0.1) +x.isGreaterThan(BigNumber(0.3).minus(0.2)) // false +BigNumber(0).gt(x) // false +BigNumber(11, 3).gt(11.1, 2) // true+ + + +
+ isGreaterThanOrEqualTo.gte(n [, base]) ⇒ boolean
+
+
+ n: number|string|BigNumber
+ base: number
+ See BigNumber for further parameter details.
+
+ Returns true if the value of this BigNumber is greater than or equal to the value
+ of n, otherwise returns false.
+
Note: This method uses the comparedTo method internally.
+(0.3 - 0.2) >= 0.1 // false
+x = new BigNumber(0.3).minus(0.2)
+x.isGreaterThanOrEqualTo(0.1) // true
+BigNumber(1).gte(x) // true
+BigNumber(10, 18).gte('i', 36) // true
+
+
+
+ isInteger.isInteger() ⇒ boolean
+
+ Returns true if the value of this BigNumber is an integer, otherwise returns
+ false.
+
+x = new BigNumber(1) +x.isInteger() // true +y = new BigNumber(123.456) +y.isInteger() // false+ + + +
isLessThan.lt(n [, base]) ⇒ boolean
+
+ n: number|string|BigNumber
+ base: number
+ See BigNumber for further parameter details.
+
+ Returns true if the value of this BigNumber is less than the value of
+ n, otherwise returns false.
+
Note: This method uses the comparedTo method internally.
+(0.3 - 0.2) < 0.1 // true +x = new BigNumber(0.3).minus(0.2) +x.isLessThan(0.1) // false +BigNumber(0).lt(x) // true +BigNumber(11.1, 2).lt(11, 3) // true+ + + +
+ isLessThanOrEqualTo.lte(n [, base]) ⇒ boolean
+
+
+ n: number|string|BigNumber
+ base: number
+ See BigNumber for further parameter details.
+
+ Returns true if the value of this BigNumber is less than or equal to the value of
+ n, otherwise returns false.
+
Note: This method uses the comparedTo method internally.
+0.1 <= (0.3 - 0.2) // false
+x = new BigNumber(0.1)
+x.isLessThanOrEqualTo(BigNumber(0.3).minus(0.2)) // true
+BigNumber(-1).lte(x) // true
+BigNumber(10, 18).lte('i', 36) // true
+
+
+
+ isNaN.isNaN() ⇒ boolean
+
+ Returns true if the value of this BigNumber is NaN, otherwise
+ returns false.
+
+x = new BigNumber(NaN)
+x.isNaN() // true
+y = new BigNumber('Infinity')
+y.isNaN() // false
+ Note: The native method isNaN() can also be used.
isNegative.isNegative() ⇒ boolean
+
+ Returns true if the sign of this BigNumber is negative, otherwise returns
+ false.
+
+x = new BigNumber(-0) +x.isNegative() // true +y = new BigNumber(2) +y.isNegative() // false+
Note: n < 0 can be used if n <= -Number.MIN_VALUE.
isPositive.isPositive() ⇒ boolean
+
+ Returns true if the sign of this BigNumber is positive, otherwise returns
+ false.
+
+x = new BigNumber(-0) +x.isPositive() // false +y = new BigNumber(2) +y.isPositive() // true+ + + +
isZero.isZero() ⇒ boolean
+
+ Returns true if the value of this BigNumber is zero or minus zero, otherwise
+ returns false.
+
+x = new BigNumber(-0) +x.isZero() && x.isNegative() // true +y = new BigNumber(Infinity) +y.isZero() // false+
Note: n == 0 can be used if n >= Number.MIN_VALUE.
+ minus.minus(n [, base]) ⇒ BigNumber
+
+
+ n: number|string|BigNumber
+ base: number
+ See BigNumber for further parameter details.
+
Returns a BigNumber whose value is the value of this BigNumber minus n.
The return value is always exact and unrounded.
++0.3 - 0.1 // 0.19999999999999998 +x = new BigNumber(0.3) +x.minus(0.1) // '0.2' +x.minus(0.6, 20) // '0'+ + + +
modulo.mod(n [, base]) ⇒ BigNumber
+
+ n: number|string|BigNumber
+ base: number
+ See BigNumber for further parameter details.
+
+ Returns a BigNumber whose value is the value of this BigNumber modulo n, i.e.
+ the integer remainder of dividing this BigNumber by n.
+
+ The value returned, and in particular its sign, is dependent on the value of the
+ MODULO_MODE setting of this BigNumber constructor.
+ If it is 1 (default value), the result will have the same sign as this BigNumber,
+ and it will match that of Javascript's % operator (within the limits of double
+ precision) and BigDecimal's remainder method.
+
The return value is always exact and unrounded.
+
+ See MODULO_MODE for a description of the other
+ modulo modes.
+
+1 % 0.9 // 0.09999999999999998
+x = new BigNumber(1)
+x.modulo(0.9) // '0.1'
+y = new BigNumber(33)
+y.mod('a', 33) // '3'
+
+
+
+
+ multipliedBy.times(n [, base]) ⇒ BigNumber
+
+
+ n: number|string|BigNumber
+ base: number
+ See BigNumber for further parameter details.
+
+ Returns a BigNumber whose value is the value of this BigNumber multiplied by n.
+
The return value is always exact and unrounded.
+
+0.6 * 3 // 1.7999999999999998
+x = new BigNumber(0.6)
+y = x.multipliedBy(3) // '1.8'
+BigNumber('7e+500').times(y) // '1.26e+501'
+x.multipliedBy('-a', 16) // '-6'
+
+
+
+ negated.negated() ⇒ BigNumber
+
+ Returns a BigNumber whose value is the value of this BigNumber negated, i.e. multiplied by
+ -1.
+
+x = new BigNumber(1.8) +x.negated() // '-1.8' +y = new BigNumber(-1.3) +y.negated() // '1.3'+ + + +
plus.plus(n [, base]) ⇒ BigNumber
+
+ n: number|string|BigNumber
+ base: number
+ See BigNumber for further parameter details.
+
Returns a BigNumber whose value is the value of this BigNumber plus n.
The return value is always exact and unrounded.
+
+0.1 + 0.2 // 0.30000000000000004
+x = new BigNumber(0.1)
+y = x.plus(0.2) // '0.3'
+BigNumber(0.7).plus(x).plus(y) // '1'
+x.plus('0.1', 8) // '0.225'
+
+
+
+
+ precision.sd([d [, rm]]) ⇒ BigNumber|number
+
+
+ d: number|boolean: integer, 1 to 1e+9
+ inclusive, or true or false
+ rm: number: integer, 0 to 8 inclusive.
+
+ If d is a number, returns a BigNumber whose value is the value of this BigNumber
+ rounded to a precision of d significant digits using rounding mode
+ rm.
+
+ If d is omitted or is null or undefined, the return
+ value is the number of significant digits of the value of this BigNumber, or null
+ if the value of this BigNumber is ±Infinity or NaN.
+ If d is true then any trailing zeros of the integer
+ part of a number are counted as significant digits, otherwise they are not.
+
+ If rm is omitted or is null or undefined,
+ ROUNDING_MODE will be used.
+
+ Throws if d or rm is invalid. See Errors.
+
+x = new BigNumber(9876.54321) +x.precision(6) // '9876.54' +x.sd() // 9 +x.precision(6, BigNumber.ROUND_UP) // '9876.55' +x.sd(2) // '9900' +x.precision(2, 1) // '9800' +x // '9876.54321' +y = new BigNumber(987000) +y.precision() // 3 +y.sd(true) // 6+ + + +
shiftedBy.shiftedBy(n) ⇒ BigNumber
+
+ n: number: integer,
+ -9007199254740991 to 9007199254740991 inclusive
+
+ Returns a BigNumber whose value is the value of this BigNumber shifted by n
+ places.
+
+ The shift is of the decimal point, i.e. of powers of ten, and is to the left if n
+ is negative or to the right if n is positive.
+
The return value is always exact and unrounded.
+
+ Throws if n is invalid. See Errors.
+
+x = new BigNumber(1.23) +x.shiftedBy(3) // '1230' +x.shiftedBy(-3) // '0.00123'+ + + +
squareRoot.sqrt() ⇒ BigNumber
+
+ Returns a BigNumber whose value is the square root of the value of this BigNumber,
+ rounded according to the current
+ DECIMAL_PLACES and
+ ROUNDING_MODE settings.
+
+ The return value will be correctly rounded, i.e. rounded as if the result was first calculated + to an infinite number of correct digits before rounding. +
++x = new BigNumber(16) +x.squareRoot() // '4' +y = new BigNumber(3) +y.sqrt() // '1.73205080756887729353'+ + + +
+ toExponential.toExponential([dp [, rm]]) ⇒ string
+
+
+ dp: number: integer, 0 to 1e+9 inclusive
+ rm: number: integer, 0 to 8 inclusive
+
+ Returns a string representing the value of this BigNumber in exponential notation rounded
+ using rounding mode rm to dp decimal places, i.e with one digit
+ before the decimal point and dp digits after it.
+
+ If the value of this BigNumber in exponential notation has fewer than dp fraction
+ digits, the return value will be appended with zeros accordingly.
+
+ If dp is omitted, or is null or undefined, the number
+ of digits after the decimal point defaults to the minimum number of digits necessary to
+ represent the value exactly.
+ If rm is omitted or is null or undefined,
+ ROUNDING_MODE is used.
+
+ Throws if dp or rm is invalid. See Errors.
+
+x = 45.6 +y = new BigNumber(x) +x.toExponential() // '4.56e+1' +y.toExponential() // '4.56e+1' +x.toExponential(0) // '5e+1' +y.toExponential(0) // '5e+1' +x.toExponential(1) // '4.6e+1' +y.toExponential(1) // '4.6e+1' +y.toExponential(1, 1) // '4.5e+1' (ROUND_DOWN) +x.toExponential(3) // '4.560e+1' +y.toExponential(3) // '4.560e+1'+ + + +
+ toFixed.toFixed([dp [, rm]]) ⇒ string
+
+
+ dp: number: integer, 0 to 1e+9 inclusive
+ rm: number: integer, 0 to 8 inclusive
+
+ Returns a string representing the value of this BigNumber in normal (fixed-point) notation
+ rounded to dp decimal places using rounding mode rm.
+
+ If the value of this BigNumber in normal notation has fewer than dp fraction
+ digits, the return value will be appended with zeros accordingly.
+
+ Unlike Number.prototype.toFixed, which returns exponential notation if a number
+ is greater or equal to 1021, this method will always return normal
+ notation.
+
+ If dp is omitted or is null or undefined, the return
+ value will be unrounded and in normal notation. This is also unlike
+ Number.prototype.toFixed, which returns the value to zero decimal places.
+ It is useful when fixed-point notation is required and the current
+ EXPONENTIAL_AT setting causes
+ toString to return exponential notation.
+ If rm is omitted or is null or undefined,
+ ROUNDING_MODE is used.
+
+ Throws if dp or rm is invalid. See Errors.
+
+x = 3.456 +y = new BigNumber(x) +x.toFixed() // '3' +y.toFixed() // '3.456' +y.toFixed(0) // '3' +x.toFixed(2) // '3.46' +y.toFixed(2) // '3.46' +y.toFixed(2, 1) // '3.45' (ROUND_DOWN) +x.toFixed(5) // '3.45600' +y.toFixed(5) // '3.45600'+ + + +
+ toFormat.toFormat([dp [, rm[, format]]]) ⇒ string
+
+
+ dp: number: integer, 0 to 1e+9 inclusive
+ rm: number: integer, 0 to 8 inclusive
+ format: object: see FORMAT
+
+
+ Returns a string representing the value of this BigNumber in normal (fixed-point) notation
+ rounded to dp decimal places using rounding mode rm, and formatted
+ according to the properties of the format object.
+
+ See FORMAT and the examples below for the properties of the
+ format object, their types, and their usage. A formatting object may contain
+ some or all of the recognised properties.
+
+ If dp is omitted or is null or undefined, then the
+ return value is not rounded to a fixed number of decimal places.
+ If rm is omitted or is null or undefined,
+ ROUNDING_MODE is used.
+ If format is omitted or is null or undefined, the
+ FORMAT object is used.
+
+ Throws if dp, rm or format is invalid. See
+ Errors.
+
+fmt = {
+ prefix = '',
+ decimalSeparator: '.',
+ groupSeparator: ',',
+ groupSize: 3,
+ secondaryGroupSize: 0,
+ fractionGroupSeparator: ' ',
+ fractionGroupSize: 0,
+ suffix = ''
+}
+
+x = new BigNumber('123456789.123456789')
+
+// Set the global formatting options
+BigNumber.config({ FORMAT: fmt })
+
+x.toFormat() // '123,456,789.123456789'
+x.toFormat(3) // '123,456,789.123'
+
+// If a reference to the object assigned to FORMAT has been retained,
+// the format properties can be changed directly
+fmt.groupSeparator = ' '
+fmt.fractionGroupSize = 5
+x.toFormat() // '123 456 789.12345 6789'
+
+// Alternatively, pass the formatting options as an argument
+fmt = {
+ prefix: '=> ',
+ decimalSeparator: ',',
+ groupSeparator: '.',
+ groupSize: 3,
+ secondaryGroupSize: 2
+}
+
+x.toFormat() // '123 456 789.12345 6789'
+x.toFormat(fmt) // '=> 12.34.56.789,123456789'
+x.toFormat(2, fmt) // '=> 12.34.56.789,12'
+x.toFormat(3, BigNumber.ROUND_UP, fmt) // '=> 12.34.56.789,124'
+
+
+
+
+ toFraction.toFraction([maximum_denominator])
+ ⇒ [BigNumber, BigNumber]
+
+
+ maximum_denominator:
+ number|string|BigNumber: integer >= 1 and <=
+ Infinity
+
+ Returns an array of two BigNumbers representing the value of this BigNumber as a simple
+ fraction with an integer numerator and an integer denominator. The denominator will be a
+ positive non-zero value less than or equal to maximum_denominator.
+
+ If a maximum_denominator is not specified, or is null or
+ undefined, the denominator will be the lowest value necessary to represent the
+ number exactly.
+
+ Throws if maximum_denominator is invalid. See Errors.
+
+x = new BigNumber(1.75)
+x.toFraction() // '7, 4'
+
+pi = new BigNumber('3.14159265358')
+pi.toFraction() // '157079632679,50000000000'
+pi.toFraction(100000) // '312689, 99532'
+pi.toFraction(10000) // '355, 113'
+pi.toFraction(100) // '311, 99'
+pi.toFraction(10) // '22, 7'
+pi.toFraction(1) // '3, 1'
+
+
+
+ toJSON.toJSON() ⇒ string
+ As valueOf.
+x = new BigNumber('177.7e+457')
+y = new BigNumber(235.4325)
+z = new BigNumber('0.0098074')
+
+// Serialize an array of three BigNumbers
+str = JSON.stringify( [x, y, z] )
+// "["1.777e+459","235.4325","0.0098074"]"
+
+// Return an array of three BigNumbers
+JSON.parse(str, function (key, val) {
+ return key === '' ? val : new BigNumber(val)
+})
+
+
+
+ toNumber.toNumber() ⇒ number
+ Returns the value of this BigNumber as a JavaScript number primitive.
++ This method is identical to using type coercion with the unary plus operator. +
+
+x = new BigNumber(456.789)
+x.toNumber() // 456.789
++x // 456.789
+
+y = new BigNumber('45987349857634085409857349856430985')
+y.toNumber() // 4.598734985763409e+34
+
+z = new BigNumber(-0)
+1 / z.toNumber() // -Infinity
+1 / +z // -Infinity
+
+
+
+
+ toPrecision.toPrecision([sd [, rm]]) ⇒ string
+
+
+ sd: number: integer, 1 to 1e+9 inclusive
+ rm: number: integer, 0 to 8 inclusive
+
+ Returns a string representing the value of this BigNumber rounded to sd
+ significant digits using rounding mode rm.
+
+ If sd is less than the number of digits necessary to represent the integer part
+ of the value in normal (fixed-point) notation, then exponential notation is used.
+
+ If sd is omitted, or is null or undefined, then the
+ return value is the same as n.toString().
+ If rm is omitted or is null or undefined,
+ ROUNDING_MODE is used.
+
+ Throws if sd or rm is invalid. See Errors.
+
+x = 45.6 +y = new BigNumber(x) +x.toPrecision() // '45.6' +y.toPrecision() // '45.6' +x.toPrecision(1) // '5e+1' +y.toPrecision(1) // '5e+1' +y.toPrecision(2, 0) // '4.6e+1' (ROUND_UP) +y.toPrecision(2, 1) // '4.5e+1' (ROUND_DOWN) +x.toPrecision(5) // '45.600' +y.toPrecision(5) // '45.600'+ + + +
toString.toString([base]) ⇒ string
+
+ base: number: integer, 2 to ALPHABET.length
+ inclusive (see ALPHABET).
+
+ Returns a string representing the value of this BigNumber in the specified base, or base
+ 10 if base is omitted or is null or
+ undefined.
+
+ For bases above 10, and using the default base conversion alphabet
+ (see ALPHABET), values from 10 to
+ 35 are represented by a-z
+ (as with Number.prototype.toString).
+
+ If a base is specified the value is rounded according to the current
+ DECIMAL_PLACES
+ and ROUNDING_MODE settings.
+
+ If a base is not specified, and this BigNumber has a positive
+ exponent that is equal to or greater than the positive component of the
+ current EXPONENTIAL_AT setting,
+ or a negative exponent equal to or less than the negative component of the
+ setting, then exponential notation is returned.
+
If base is null or undefined it is ignored.
+ Throws if base is invalid. See Errors.
+
+x = new BigNumber(750000)
+x.toString() // '750000'
+BigNumber.config({ EXPONENTIAL_AT: 5 })
+x.toString() // '7.5e+5'
+
+y = new BigNumber(362.875)
+y.toString(2) // '101101010.111'
+y.toString(9) // '442.77777777777777777778'
+y.toString(32) // 'ba.s'
+
+BigNumber.config({ DECIMAL_PLACES: 4 });
+z = new BigNumber('1.23456789')
+z.toString() // '1.23456789'
+z.toString(10) // '1.2346'
+
+
+
+ valueOf.valueOf() ⇒ string
+
+ As toString, but does not accept a base argument and includes
+ the minus sign for negative zero.
+
+x = new BigNumber('-0')
+x.toString() // '0'
+x.valueOf() // '-0'
+y = new BigNumber('1.777e+457')
+y.valueOf() // '1.777e+457'
+
+
+
+ Properties
+The properties of a BigNumber instance:
+| Property | +Description | +Type | +Value | +
|---|---|---|---|
| c | +coefficient* | +number[] |
+ Array of base 1e14 numbers |
+
| e | +exponent | +number | +Integer, -1000000000 to 1000000000 inclusive |
+
| s | +sign | +number | +-1 or 1 |
+
*significand
+
+ The value of any of the c, e and s properties may also
+ be null.
+
+ The above properties are best considered to be read-only. In early versions of this library it + was okay to change the exponent of a BigNumber by writing to its exponent property directly, + but this is no longer reliable as the value of the first element of the coefficient array is + now dependent on the exponent. +
++ Note that, as with JavaScript numbers, the original exponent and fractional trailing zeros are + not necessarily preserved. +
+x = new BigNumber(0.123) // '0.123'
+x.toExponential() // '1.23e-1'
+x.c // '1,2,3'
+x.e // -1
+x.s // 1
+
+y = new Number(-123.4567000e+2) // '-12345.67'
+y.toExponential() // '-1.234567e+4'
+z = new BigNumber('-123.4567000e+2') // '-12345.67'
+z.toExponential() // '-1.234567e+4'
+z.c // '1,2,3,4,5,6,7'
+z.e // 4
+z.s // -1
+
+
+
+ Zero, NaN and Infinity
+
+ The table below shows how ±0, NaN and
+ ±Infinity are stored.
+
| + | c | +e | +s | +
|---|---|---|---|
| ±0 | +[0] |
+ 0 |
+ ±1 |
+
| NaN | +null |
+ null |
+ null |
+
| ±Infinity | +null |
+ null |
+ ±1 |
+
+x = new Number(-0) // 0 +1 / x == -Infinity // true + +y = new BigNumber(-0) // '0' +y.c // '0' ( [0].toString() ) +y.e // 0 +y.s // -1+ + + +
Errors
+The table below shows the errors that are thrown.
+
+ The errors are generic Error objects whose message begins
+ '[BigNumber Error]'.
+
| Method | +Throws | +
|---|---|
+ BigNumber+ comparedTo+ dividedBy+ dividedToIntegerBy+ isEqualTo+ isGreaterThan+ isGreaterThanOrEqualTo+ isLessThan+ isLessThanOrEqualTo+ minus+ modulo+ plus+ multipliedBy
+ |
+ Base not a primitive number | +
| Base not an integer | +|
| Base out of range | +|
| Number primitive has more than 15 significant digits* | +|
| Not a base... number* | +|
| Not a number* | +|
clone |
+ Object expected | +
config |
+ Object expected | +
DECIMAL_PLACES not a primitive number |
+ |
DECIMAL_PLACES not an integer |
+ |
DECIMAL_PLACES out of range |
+ |
ROUNDING_MODE not a primitive number |
+ |
ROUNDING_MODE not an integer |
+ |
ROUNDING_MODE out of range |
+ |
EXPONENTIAL_AT not a primitive number |
+ |
EXPONENTIAL_AT not an integer |
+ |
EXPONENTIAL_AT out of range |
+ |
RANGE not a primitive number |
+ |
RANGE not an integer |
+ |
RANGE cannot be zero |
+ |
RANGE cannot be zero |
+ |
CRYPTO not true or false |
+ |
crypto unavailable |
+ |
MODULO_MODE not a primitive number |
+ |
MODULO_MODE not an integer |
+ |
MODULO_MODE out of range |
+ |
POW_PRECISION not a primitive number |
+ |
POW_PRECISION not an integer |
+ |
POW_PRECISION out of range |
+ |
FORMAT not an object |
+ |
ALPHABET invalid |
+ |
+ decimalPlaces+ precision+ random+ shiftedBy+ toExponential+ toFixed+ toFormat+ toPrecision
+ |
+ Argument not a primitive number | +
| Argument not an integer | +|
| Argument out of range | +|
+ decimalPlaces+ precision
+ |
+ Argument not true or false | +
exponentiatedBy |
+ Argument not an integer | +
isBigNumber |
+ Invalid BigNumber* | +
+ minimum+ maximum
+ |
+ Not a number* | +
+ random
+ |
+ crypto unavailable | +
+ toFormat
+ |
+ Argument not an object | +
toFraction |
+ Argument not an integer | +
| Argument out of range | +|
toString |
+ Base not a primitive number | +
| Base not an integer | +|
| Base out of range | +
*Only thrown if BigNumber.DEBUG is true.
To determine if an exception is a BigNumber Error:
+
+try {
+ // ...
+} catch (e) {
+ if (e instanceof Error && e.message.indexOf('[BigNumber Error]') === 0) {
+ // ...
+ }
+}
+
+
+
+ Type coercion
+
+ To prevent the accidental use of a BigNumber in primitive number operations, or the
+ accidental addition of a BigNumber to a string, the valueOf method can be safely
+ overwritten as shown below.
+
+ The valueOf method is the same as the
+ toJSON method, and both are the same as the
+ toString method except they do not take a base
+ argument and they include the minus sign for negative zero.
+
+BigNumber.prototype.valueOf = function () {
+ throw Error('valueOf called!')
+}
+
+x = new BigNumber(1)
+x / 2 // '[BigNumber Error] valueOf called!'
+x + 'abc' // '[BigNumber Error] valueOf called!'
+
+
+
+
+ FAQ
+ +Why are trailing fractional zeros removed from BigNumbers?
++ Some arbitrary-precision libraries retain trailing fractional zeros as they can indicate the + precision of a value. This can be useful but the results of arithmetic operations can be + misleading. +
+
+x = new BigDecimal("1.0")
+y = new BigDecimal("1.1000")
+z = x.add(y) // 2.1000
+
+x = new BigDecimal("1.20")
+y = new BigDecimal("3.45000")
+z = x.multiply(y) // 4.1400000
+ + To specify the precision of a value is to specify that the value lies + within a certain range. +
+
+ In the first example, x has a value of 1.0. The trailing zero shows
+ the precision of the value, implying that it is in the range 0.95 to
+ 1.05. Similarly, the precision indicated by the trailing zeros of y
+ indicates that the value is in the range 1.09995 to 1.10005.
+
+ If we add the two lowest values in the ranges we have, 0.95 + 1.09995 = 2.04995,
+ and if we add the two highest values we have, 1.05 + 1.10005 = 2.15005, so the
+ range of the result of the addition implied by the precision of its operands is
+ 2.04995 to 2.15005.
+
+ The result given by BigDecimal of 2.1000 however, indicates that the value is in
+ the range 2.09995 to 2.10005 and therefore the precision implied by
+ its trailing zeros may be misleading.
+
+ In the second example, the true range is 4.122744 to 4.157256 yet
+ the BigDecimal answer of 4.1400000 indicates a range of 4.13999995
+ to 4.14000005. Again, the precision implied by the trailing zeros may be
+ misleading.
+
+ This library, like binary floating point and most calculators, does not retain trailing
+ fractional zeros. Instead, the toExponential, toFixed and
+ toPrecision methods enable trailing zeros to be added if and when required.
+
+
+
+ 
+
+
+
+
+
+> Terminal string styling done right
+
+[](https://travis-ci.org/chalk/chalk) [](https://coveralls.io/github/chalk/chalk?branch=master) [](https://www.npmjs.com/package/chalk?activeTab=dependents) [](https://www.npmjs.com/package/chalk) [](https://www.youtube.com/watch?v=9auOCbH5Ns4) [](https://github.com/xojs/xo)  [](https://repl.it/github/chalk/chalk)
+
+
+
++ +--- + +
+
+
+ +
+
+
+
+ +
+
+
+
+ +
+ +
+
+---
+
++
+ + Sindre Sorhus' open source work is supported by the community on GitHub Sponsors and Dev + +
+ Special thanks to: ++
+ +
+
+ +
+ +
+
+ +
+ +
+ 
+
+ All your environment variables, in one place
+
+
+ Stop struggling with scattered API keys, hacking together home-brewed tools,
+
+ and avoiding access controls. Keep your team and servers in sync with Doppler. +
+
+ + and avoiding access controls. Keep your team and servers in sync with Doppler. +
+ +
+ 
+
+
+
+
+ + +## Highlights + +- Expressive API +- Highly performant +- Ability to nest styles +- [256/Truecolor color support](#256-and-truecolor-color-support) +- Auto-detects color support +- Doesn't extend `String.prototype` +- Clean and focused +- Actively maintained +- [Used by ~50,000 packages](https://www.npmjs.com/browse/depended/chalk) as of January 1, 2020 + +## Install + +```console +$ npm install chalk +``` + +## Usage + +```js +const chalk = require('chalk'); + +console.log(chalk.blue('Hello world!')); +``` + +Chalk comes with an easy to use composable API where you just chain and nest the styles you want. + +```js +const chalk = require('chalk'); +const log = console.log; + +// Combine styled and normal strings +log(chalk.blue('Hello') + ' World' + chalk.red('!')); + +// Compose multiple styles using the chainable API +log(chalk.blue.bgRed.bold('Hello world!')); + +// Pass in multiple arguments +log(chalk.blue('Hello', 'World!', 'Foo', 'bar', 'biz', 'baz')); + +// Nest styles +log(chalk.red('Hello', chalk.underline.bgBlue('world') + '!')); + +// Nest styles of the same type even (color, underline, background) +log(chalk.green( + 'I am a green line ' + + chalk.blue.underline.bold('with a blue substring') + + ' that becomes green again!' +)); + +// ES2015 template literal +log(` +CPU: ${chalk.red('90%')} +RAM: ${chalk.green('40%')} +DISK: ${chalk.yellow('70%')} +`); + +// ES2015 tagged template literal +log(chalk` +CPU: {red ${cpu.totalPercent}%} +RAM: {green ${ram.used / ram.total * 100}%} +DISK: {rgb(255,131,0) ${disk.used / disk.total * 100}%} +`); + +// Use RGB colors in terminal emulators that support it. +log(chalk.keyword('orange')('Yay for orange colored text!')); +log(chalk.rgb(123, 45, 67).underline('Underlined reddish color')); +log(chalk.hex('#DEADED').bold('Bold gray!')); +``` + +Easily define your own themes: + +```js +const chalk = require('chalk'); + +const error = chalk.bold.red; +const warning = chalk.keyword('orange'); + +console.log(error('Error!')); +console.log(warning('Warning!')); +``` + +Take advantage of console.log [string substitution](https://nodejs.org/docs/latest/api/console.html#console_console_log_data_args): + +```js +const name = 'Sindre'; +console.log(chalk.green('Hello %s'), name); +//=> 'Hello Sindre' +``` + +## API + +### chalk.`