Prepare for alpha (0.1.0) release

* update version to 0.1.0
* copy recent code & test changes from original repo
* switch CI tests to run Node 14 and 16 (remove 15)
* run prettier --fix
* update dependencies
* update .gitignore

Author: justingrant

Diff for: .github/workflows/test.yml

@@ -5,7 +5,7 @@ on:
     branches:
       - main
 jobs:
-  test:
+  test-node16:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
@@ -15,3 +15,13 @@ jobs:
           node-version: 16.x
       - run: npm ci --no-optional
       - run: npm test
+  test-node14:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: use node.js v14.x
+        uses: actions/setup-node@v1
+        with:
+          node-version: 14.x
+      - run: npm ci --no-optional
+      - run: npm test

Diff for: .gitignore

@@ -1,3 +1,5 @@
 node_modules/
 dist/
 .eslintcache
+.vscode/
+*.tgz

Diff for: lib/duration.mjs

@@ -216,18 +216,8 @@ export class Duration {
   }
   add(other, options = undefined) {
     if (!ES.IsTemporalDuration(this)) throw new TypeError('invalid receiver');
-    let {
-      years,
-      months,
-      weeks,
-      days,
-      hours,
-      minutes,
-      seconds,
-      milliseconds,
-      microseconds,
-      nanoseconds
-    } = ES.ToLimitedTemporalDuration(other);
+    let { years, months, weeks, days, hours, minutes, seconds, milliseconds, microseconds, nanoseconds } =
+      ES.ToLimitedTemporalDuration(other);
     options = ES.GetOptionsObject(options);
     const relativeTo = ES.ToRelativeTemporalObject(options);
     ({ years, months, weeks, days, hours, minutes, seconds, milliseconds, microseconds, nanoseconds } = ES.AddDuration(
@@ -257,18 +247,8 @@ export class Duration {
   }
   subtract(other, options = undefined) {
     if (!ES.IsTemporalDuration(this)) throw new TypeError('invalid receiver');
-    let {
-      years,
-      months,
-      weeks,
-      days,
-      hours,
-      minutes,
-      seconds,
-      milliseconds,
-      microseconds,
-      nanoseconds
-    } = ES.ToLimitedTemporalDuration(other);
+    let { years, months, weeks, days, hours, minutes, seconds, milliseconds, microseconds, nanoseconds } =
+      ES.ToLimitedTemporalDuration(other);
     options = ES.GetOptionsObject(options);
     const relativeTo = ES.ToRelativeTemporalObject(options);
     ({ years, months, weeks, days, hours, minutes, seconds, milliseconds, microseconds, nanoseconds } = ES.AddDuration(
@@ -353,60 +333,40 @@ export class Duration {
       largestUnit,
       relativeTo
     ));
-    ({
-      years,
-      months,
-      weeks,
-      days,
-      hours,
-      minutes,
-      seconds,
-      milliseconds,
-      microseconds,
-      nanoseconds
-    } = ES.RoundDuration(
-      years,
-      months,
-      weeks,
-      days,
-      hours,
-      minutes,
-      seconds,
-      milliseconds,
-      microseconds,
-      nanoseconds,
-      roundingIncrement,
-      smallestUnit,
-      roundingMode,
-      relativeTo
-    ));
-    ({
-      years,
-      months,
-      weeks,
-      days,
-      hours,
-      minutes,
-      seconds,
-      milliseconds,
-      microseconds,
-      nanoseconds
-    } = ES.AdjustRoundedDurationDays(
-      years,
-      months,
-      weeks,
-      days,
-      hours,
-      minutes,
-      seconds,
-      milliseconds,
-      microseconds,
-      nanoseconds,
-      roundingIncrement,
-      smallestUnit,
-      roundingMode,
-      relativeTo
-    ));
+    ({ years, months, weeks, days, hours, minutes, seconds, milliseconds, microseconds, nanoseconds } =
+      ES.RoundDuration(
+        years,
+        months,
+        weeks,
+        days,
+        hours,
+        minutes,
+        seconds,
+        milliseconds,
+        microseconds,
+        nanoseconds,
+        roundingIncrement,
+        smallestUnit,
+        roundingMode,
+        relativeTo
+      ));
+    ({ years, months, weeks, days, hours, minutes, seconds, milliseconds, microseconds, nanoseconds } =
+      ES.AdjustRoundedDurationDays(
+        years,
+        months,
+        weeks,
+        days,
+        hours,
+        minutes,
+        seconds,
+        milliseconds,
+        microseconds,
+        nanoseconds,
+        roundingIncrement,
+        smallestUnit,
+        roundingMode,
+        relativeTo
+      ));
     ({ years, months, weeks, days } = ES.BalanceDurationRelative(years, months, weeks, days, largestUnit, relativeTo));
     if (ES.IsTemporalZonedDateTime(relativeTo)) {
       relativeTo = ES.MoveRelativeZonedDateTime(relativeTo, years, months, weeks, 0);