From 94ba25d45d8e1ab32d53e3c55e40a276995b9dbb Mon Sep 17 00:00:00 2001
From: NEERAJ <neerajrpathak710@gmail.com>
Date: Mon, 22 Dec 2025 13:15:34 +0530
Subject: [PATCH 1/4] feat: add `object/lowercase-keys`

Ref: https://github.com/stdlib-js/stdlib/issues/8755
---
 .../@stdlib/object/lowercase-keys/README.md   | 139 +++++++++++++
 .../lowercase-keys/benchmark/benchmark.js     |  57 ++++++
 .../object/lowercase-keys/docs/repl.txt       |  28 +++
 .../lowercase-keys/docs/types/index.d.ts      |  46 +++++
 .../object/lowercase-keys/docs/types/test.ts  |  33 +++
 .../object/lowercase-keys/examples/index.js   |  33 +++
 .../object/lowercase-keys/lib/index.js        |  45 +++++
 .../@stdlib/object/lowercase-keys/lib/main.js |  63 ++++++
 .../object/lowercase-keys/package.json        |  74 +++++++
 .../object/lowercase-keys/test/test.js        | 191 ++++++++++++++++++
 10 files changed, 709 insertions(+)
 create mode 100644 lib/node_modules/@stdlib/object/lowercase-keys/README.md
 create mode 100644 lib/node_modules/@stdlib/object/lowercase-keys/benchmark/benchmark.js
 create mode 100644 lib/node_modules/@stdlib/object/lowercase-keys/docs/repl.txt
 create mode 100644 lib/node_modules/@stdlib/object/lowercase-keys/docs/types/index.d.ts
 create mode 100644 lib/node_modules/@stdlib/object/lowercase-keys/docs/types/test.ts
 create mode 100644 lib/node_modules/@stdlib/object/lowercase-keys/examples/index.js
 create mode 100644 lib/node_modules/@stdlib/object/lowercase-keys/lib/index.js
 create mode 100644 lib/node_modules/@stdlib/object/lowercase-keys/lib/main.js
 create mode 100644 lib/node_modules/@stdlib/object/lowercase-keys/package.json
 create mode 100644 lib/node_modules/@stdlib/object/lowercase-keys/test/test.js

diff --git a/lib/node_modules/@stdlib/object/lowercase-keys/README.md b/lib/node_modules/@stdlib/object/lowercase-keys/README.md
new file mode 100644
index 000000000000..4653ae4edf56
--- /dev/null
+++ b/lib/node_modules/@stdlib/object/lowercase-keys/README.md
@@ -0,0 +1,139 @@
+<!--
+
+@license Apache-2.0
+
+Copyright (c) 2018 The Stdlib Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
+-->
+
+# lowercaseKeys
+
+> Convert each object key to lowercase.
+
+<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
+
+<section class="intro">
+
+</section>
+
+<!-- /.intro -->
+
+<!-- Package usage documentation. -->
+
+<section class="usage">
+
+## Usage
+
+```javascript
+var lowercaseKeys = require( '@stdlib/object/lowercase-keys' );
+```
+
+#### lowercaseKeys( obj )
+
+Converts each `object` key to lowercase, mapping the transformed keys to a new `object` having the same values.
+
+```javascript
+var obj1 = {
+    'A': 1,
+    'B': 2
+};
+
+var obj2 = lowercaseKeys( obj1 );
+// returns { 'a': 1, 'b': 2 }
+```
+
+</section>
+
+<!-- /.usage -->
+
+<!-- Package usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="notes">
+
+## Notes
+
+-   The function only transforms **own** properties. Hence, the function does **not** transform inherited properties.
+-   The function **shallow** copies key values.
+
+</section>
+
+<!-- /.notes -->
+
+<!-- Package usage examples. -->
+
+<section class="examples">
+
+## Examples
+
+<!-- eslint no-undef: "error" -->
+
+```javascript
+var lowercaseKeys = require( '@stdlib/object/lowercase-keys' );
+
+var obj1 = {
+    'A': 'beep',
+    'B': 'boop',
+    'C': 'foo',
+    'D': 'bar'
+};
+
+var obj2 = lowercaseKeys( obj1 );
+
+console.dir( obj2 );
+// => { 'a': 'beep', 'b': 'boop', 'c': 'foo', 'd': 'bar' }
+```
+
+</section>
+
+<!-- /.examples -->
+
+<!-- Section to include cited references. If references are included, add a horizontal rule *before* the section. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="references">
+
+</section>
+
+<!-- /.references -->
+
+<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->
+
+<section class="related">
+
+* * *
+
+## See Also
+
+-   <span class="package-name">[`@stdlib/object/uncapitalize-keys`][@stdlib/object/uncapitalize-keys]</span><span class="delimiter">: </span><span class="description">convert the first letter of each object key to lowercase.</span>
+-   <span class="package-name">[`@stdlib/utils/uppercase-keys`][@stdlib/utils/uppercase-keys]</span><span class="delimiter">: </span><span class="description">convert each object key to uppercase.</span>
+
+</section>
+
+<!-- /.related -->
+
+<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="links">
+
+<!-- <related-links> -->
+
+[@stdlib/object/uncapitalize-keys]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/object/uncapitalize-keys
+
+[@stdlib/utils/uppercase-keys]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/utils/uppercase-keys
+
+<!-- </related-links> -->
+
+</section>
+
+<!-- /.links -->
diff --git a/lib/node_modules/@stdlib/object/lowercase-keys/benchmark/benchmark.js b/lib/node_modules/@stdlib/object/lowercase-keys/benchmark/benchmark.js
new file mode 100644
index 000000000000..270a9d2364f4
--- /dev/null
+++ b/lib/node_modules/@stdlib/object/lowercase-keys/benchmark/benchmark.js
@@ -0,0 +1,57 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2018 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var bench = require( '@stdlib/bench' );
+var randu = require( '@stdlib/random/base/randu' );
+var pkg = require( './../package.json' ).name;
+var lowercaseKeys = require( './../lib' );
+
+
+// MAIN //
+
+bench( pkg, function benchmark( b ) {
+	var obj;
+	var out;
+	var i;
+
+	obj = {
+		'A': 'beep',
+		'B': 'boop',
+		'C': 'foo',
+		'D': 'bar',
+		'E': randu()
+	};
+	b.tic();
+	for ( i = 0; i < b.iterations; i++ ) {
+		obj.E = randu();
+		out = lowercaseKeys( obj );
+		if ( typeof out !== 'object' ) {
+			b.fail( 'should return an object' );
+		}
+	}
+	b.toc();
+	if ( typeof out !== 'object' ) {
+		b.fail( 'should return an object' );
+	}
+	b.pass( 'benchmark finished' );
+	b.end();
+});
diff --git a/lib/node_modules/@stdlib/object/lowercase-keys/docs/repl.txt b/lib/node_modules/@stdlib/object/lowercase-keys/docs/repl.txt
new file mode 100644
index 000000000000..8faefd592f45
--- /dev/null
+++ b/lib/node_modules/@stdlib/object/lowercase-keys/docs/repl.txt
@@ -0,0 +1,28 @@
+
+{{alias}}( obj )
+    Converts each object key to lowercase.
+
+    The function only transforms own properties. Hence, the function does not
+    transform inherited properties.
+
+    The function shallow copies key values.
+
+    Parameters
+    ----------
+    obj: Object
+        Source object.
+
+    Returns
+    -------
+    out: Object
+        New object.
+
+    Examples
+    --------
+    > var obj = { 'A': 1, 'B': 2 };
+    > var out = {{alias}}( obj )
+    { 'a': 1, 'b': 2 }
+
+    See Also
+    --------
+
diff --git a/lib/node_modules/@stdlib/object/lowercase-keys/docs/types/index.d.ts b/lib/node_modules/@stdlib/object/lowercase-keys/docs/types/index.d.ts
new file mode 100644
index 000000000000..7eba790e877a
--- /dev/null
+++ b/lib/node_modules/@stdlib/object/lowercase-keys/docs/types/index.d.ts
@@ -0,0 +1,46 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2019 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+// TypeScript Version: 4.1
+
+/**
+* Converts each object key to lowercase.
+*
+* ## Notes
+*
+* -   The function only transforms own properties. Hence, the function does not transform inherited properties.
+* -   The function shallow copies key values.
+*
+* @param obj - source object
+* @returns new object
+*
+* @example
+* var obj1 = {
+*     'A': 1,
+*     'B': 2
+* };
+*
+* var obj2 = lowercaseKeys( obj1 );
+* // returns { 'a': 1, 'b': 2 }
+*/
+declare function lowercaseKeys( obj: Object ): Object;
+
+
+// EXPORTS //
+
+export = lowercaseKeys;
diff --git a/lib/node_modules/@stdlib/object/lowercase-keys/docs/types/test.ts b/lib/node_modules/@stdlib/object/lowercase-keys/docs/types/test.ts
new file mode 100644
index 000000000000..c8513b6aafe4
--- /dev/null
+++ b/lib/node_modules/@stdlib/object/lowercase-keys/docs/types/test.ts
@@ -0,0 +1,33 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2019 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+import lowercaseKeys = require( './index' );
+
+
+// TESTS //
+
+// The function returns an object...
+{
+	lowercaseKeys( { 'beep': 1, 'boop': 2 } ); // $ExpectType Object
+}
+
+// The compiler throws an error if the function is provided an incorrect number of arguments...
+{
+	lowercaseKeys(); // $ExpectError
+	lowercaseKeys( [], 2 ); // $ExpectError
+}
diff --git a/lib/node_modules/@stdlib/object/lowercase-keys/examples/index.js b/lib/node_modules/@stdlib/object/lowercase-keys/examples/index.js
new file mode 100644
index 000000000000..92e0a4ccab1a
--- /dev/null
+++ b/lib/node_modules/@stdlib/object/lowercase-keys/examples/index.js
@@ -0,0 +1,33 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2018 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+var lowercaseKeys = require( './../lib' );
+
+var obj1 = {
+	'A': 'beep',
+	'B': 'boop',
+	'C': 'foo',
+	'D': 'bar'
+};
+
+var obj2 = lowercaseKeys( obj1 );
+
+console.dir( obj2 );
+// => { 'a': 'beep', 'b': 'boop', 'c': 'foo', 'd': 'bar' }
diff --git a/lib/node_modules/@stdlib/object/lowercase-keys/lib/index.js b/lib/node_modules/@stdlib/object/lowercase-keys/lib/index.js
new file mode 100644
index 000000000000..234cffbf2ef6
--- /dev/null
+++ b/lib/node_modules/@stdlib/object/lowercase-keys/lib/index.js
@@ -0,0 +1,45 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2018 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+/**
+* Convert each object key to lowercase.
+*
+* @module @stdlib/object/lowercase-keys
+*
+* @example
+* var lowercaseKeys = require( '@stdlib/object/lowercase-keys' );
+*
+* var obj1 = {
+*     'A': 1,
+*     'B': 2
+* };
+*
+* var obj2 = lowercaseKeys( obj1 );
+* // returns { 'a': 1, 'b': 2 }
+*/
+
+// MODULES //
+
+var main = require( './main.js' );
+
+
+// EXPORTS //
+
+module.exports = main;
diff --git a/lib/node_modules/@stdlib/object/lowercase-keys/lib/main.js b/lib/node_modules/@stdlib/object/lowercase-keys/lib/main.js
new file mode 100644
index 000000000000..8725a1b3a868
--- /dev/null
+++ b/lib/node_modules/@stdlib/object/lowercase-keys/lib/main.js
@@ -0,0 +1,63 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2018 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var hasOwnProp = require( '@stdlib/assert/has-own-property' );
+var format = require( '@stdlib/string/format' );
+
+
+// MAIN //
+
+/**
+* Converts each object key to lowercase.
+*
+* @param {Object} obj - source object
+* @throws {TypeError} must provide an object
+* @returns {Object} new object
+*
+* @example
+* var obj1 = {
+*     'A': 1,
+*     'B': 2
+* };
+*
+* var obj2 = lowercaseKeys( obj1 );
+* // returns { 'a': 1, 'b': 2 }
+*/
+function lowercaseKeys( obj ) {
+	var out;
+	var key;
+	if ( typeof obj !== 'object' || obj === null ) {
+		throw new TypeError( format( 'invalid argument. Must provide an object. Value: `%s`.', obj ) );
+	}
+	out = {};
+	for ( key in obj ) {
+		if ( hasOwnProp( obj, key ) ) {
+			out[ key.toLowerCase() ] = obj[ key ];
+		}
+	}
+	return out;
+}
+
+
+// EXPORTS //
+
+module.exports = lowercaseKeys;
diff --git a/lib/node_modules/@stdlib/object/lowercase-keys/package.json b/lib/node_modules/@stdlib/object/lowercase-keys/package.json
new file mode 100644
index 000000000000..b0dfe25798ba
--- /dev/null
+++ b/lib/node_modules/@stdlib/object/lowercase-keys/package.json
@@ -0,0 +1,74 @@
+{
+  "name": "@stdlib/object/lowercase-keys",
+  "version": "0.0.0",
+  "description": "Convert each object key to lowercase.",
+  "license": "Apache-2.0",
+  "author": {
+    "name": "The Stdlib Authors",
+    "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+  },
+  "contributors": [
+    {
+      "name": "The Stdlib Authors",
+      "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+    }
+  ],
+  "main": "./lib",
+  "directories": {
+    "benchmark": "./benchmark",
+    "doc": "./docs",
+    "example": "./examples",
+    "lib": "./lib",
+    "test": "./test"
+  },
+  "types": "./docs/types",
+  "scripts": {},
+  "homepage": "https://github.com/stdlib-js/stdlib",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/stdlib-js/stdlib.git"
+  },
+  "bugs": {
+    "url": "https://github.com/stdlib-js/stdlib/issues"
+  },
+  "dependencies": {},
+  "devDependencies": {},
+  "engines": {
+    "node": ">=0.10.0",
+    "npm": ">2.7.0"
+  },
+  "os": [
+    "aix",
+    "darwin",
+    "freebsd",
+    "linux",
+    "macos",
+    "openbsd",
+    "sunos",
+    "win32",
+    "windows"
+  ],
+  "keywords": [
+    "stdlib",
+    "stdutils",
+    "stdutil",
+    "utilities",
+    "utility",
+    "utils",
+    "util",
+    "map",
+    "transform",
+    "lowercase",
+    "copy",
+    "cp",
+    "clone",
+    "extract",
+    "property",
+    "props",
+    "properties",
+    "keys",
+    "object",
+    "array",
+    "obj"
+  ]
+}
diff --git a/lib/node_modules/@stdlib/object/lowercase-keys/test/test.js b/lib/node_modules/@stdlib/object/lowercase-keys/test/test.js
new file mode 100644
index 000000000000..9d88436e6d1c
--- /dev/null
+++ b/lib/node_modules/@stdlib/object/lowercase-keys/test/test.js
@@ -0,0 +1,191 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2018 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var tape = require( 'tape' );
+var lowercaseKeys = require( './../lib' );
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+	t.ok( true, __filename );
+	t.strictEqual( typeof lowercaseKeys, 'function', 'main export is a function' );
+	t.end();
+});
+
+tape( 'the function throws an error if provided a source object argument which is not an object', function test( t ) {
+	var values;
+	var i;
+
+	values = [
+		'5',
+		5,
+		NaN,
+		null,
+		void 0,
+		true
+	];
+
+	for ( i = 0; i < values.length; i++ ) {
+		t.throws( badValue( values[i] ), TypeError, 'throws a type error when provided '+values[i] );
+	}
+	t.end();
+
+	function badValue( value ) {
+		return function badValue() {
+			lowercaseKeys( value );
+		};
+	}
+});
+
+tape( 'the function lowercases keys from a source object, mapping the transformed keys to a destination object having the same key values', function test( t ) {
+	var expected;
+	var obj1;
+	var obj2;
+
+	obj1 = {
+		'': 3.14,
+		'bEeP': 0,
+		'A': 1,
+		'B': 2,
+		'C': 3,
+		'D': 4,
+		'E': 5
+	};
+
+	obj2 = lowercaseKeys( obj1 );
+
+	expected = {
+		'': 3.14,
+		'beep': 0,
+		'a': 1,
+		'b': 2,
+		'c': 3,
+		'd': 4,
+		'e': 5
+	};
+
+	t.deepEqual( obj2, expected, 'returns expected object' );
+	t.end();
+});
+
+tape( 'the function ignores inherited properties', function test( t ) {
+	var expected;
+	var obj1;
+	var obj2;
+
+	function Foo() {
+		this.A = 1;
+		this.B = 2;
+		this.C = 3;
+		this.D = 4;
+		this.E = 5;
+		return this;
+	}
+
+	Foo.prototype.F = 6;
+	Foo.prototype.G = 7;
+
+	obj1 = new Foo();
+
+	obj2 = lowercaseKeys( obj1 );
+
+	expected = {
+		'a': 1,
+		'b': 2,
+		'c': 3,
+		'd': 4,
+		'e': 5
+	};
+
+	t.deepEqual( obj2, expected, 'returns expected object' );
+	t.end();
+});
+
+tape( 'the function accepts non-plain objects', function test( t ) {
+	var expected;
+	var obj1;
+	var obj2;
+
+	obj1 = [ 0, 1, 2, 3, 4, 5 ];
+
+	obj2 = lowercaseKeys( obj1 );
+
+	expected = {
+		'0': 0,
+		'1': 1,
+		'2': 2,
+		'3': 3,
+		'4': 4,
+		'5': 5
+	};
+
+	t.deepEqual( obj2, expected, 'returns expected object' );
+	t.end();
+});
+
+tape( 'the function shallow copies key values', function test( t ) {
+	var expected;
+	var obj1;
+	var obj2;
+
+	obj1 = {
+		'A': [ 1 ],
+		'B': [ 2 ],
+		'C': [ 3 ],
+		'D': [ 4 ],
+		'E': [ 5 ]
+	};
+
+	obj2 = lowercaseKeys( obj1 );
+
+	expected = {
+		'a': obj1.A,
+		'b': obj1.B,
+		'c': obj1.C,
+		'd': obj1.D,
+		'e': obj1.E
+	};
+
+	t.deepEqual( obj2, expected, 'returns expected object' );
+	t.strictEqual( obj2.a, obj1.A, 'returns shallow copy' );
+	t.strictEqual( obj2.b, obj1.B, 'returns shallow copy' );
+	t.strictEqual( obj2.c, obj1.C, 'returns shallow copy' );
+	t.strictEqual( obj2.d, obj1.D, 'returns shallow copy' );
+	t.strictEqual( obj2.e, obj1.E, 'returns shallow copy' );
+
+	t.end();
+});
+
+tape( 'if provided an empty object, the function returns an empty object', function test( t ) {
+	var expected;
+	var obj1;
+	var obj2;
+
+	obj1 = {};
+	expected = {};
+
+	obj2 = lowercaseKeys( obj1 );
+
+	t.deepEqual( obj2, expected, 'returns expected object' );
+	t.end();
+});

From a3ecca1055cd20fea32cabad3dae3a0dc2d4671d Mon Sep 17 00:00:00 2001
From: NEERAJ <neerajrpathak710@gmail.com>
Date: Mon, 22 Dec 2025 13:16:59 +0530
Subject: [PATCH 2/4] remove: remove `lowercaseKeys` from namespace

This commit removes the `lowercaseKeys` symbol from the `@stdlib/utils`
namespace due to a package migration.

BREAKING CHANGE: remove `lowercaseKeys`

To migrate, users should access the same symbol via the
`@stdlib/object` namespace.

Ref: https://github.com/stdlib-js/stdlib/issues/8755
---
 .../@stdlib/utils/docs/types/index.d.ts       | 23 -------------------
 lib/node_modules/@stdlib/utils/lib/index.js   |  9 --------
 2 files changed, 32 deletions(-)

diff --git a/lib/node_modules/@stdlib/utils/docs/types/index.d.ts b/lib/node_modules/@stdlib/utils/docs/types/index.d.ts
index bc2734371c6f..5a380756fb2f 100644
--- a/lib/node_modules/@stdlib/utils/docs/types/index.d.ts
+++ b/lib/node_modules/@stdlib/utils/docs/types/index.d.ts
@@ -124,7 +124,6 @@ import keyBy = require( '@stdlib/utils/key-by' );
 import keyByRight = require( '@stdlib/utils/key-by-right' );
 import objectKeys = require( '@stdlib/utils/keys' );
 import keysIn = require( '@stdlib/utils/keys-in' );
-import lowercaseKeys = require( '@stdlib/utils/lowercase-keys' );
 import map = require( '@stdlib/utils/map' );
 import mapArguments = require( '@stdlib/utils/map-arguments' );
 import mapFun = require( '@stdlib/utils/map-function' );
@@ -3122,28 +3121,6 @@ interface Namespace {
 	*/
 	keysIn: typeof keysIn;
 
-	/**
-	* Converts each object key to lowercase.
-	*
-	* ## Notes
-	*
-	* -   The function only transforms own properties. Hence, the function does not transform inherited properties.
-	* -   The function shallow copies key values.
-	*
-	* @param obj - source object
-	* @returns new object
-	*
-	* @example
-	* var obj1 = {
-	*     'A': 1,
-	*     'B': 2
-	* };
-	*
-	* var obj2 = ns.lowercaseKeys( obj1 );
-	* // returns { 'a': 1, 'b': 2 }
-	*/
-	lowercaseKeys: typeof lowercaseKeys;
-
 	/**
 	* Applies a function to each element in an array and assigns the result to an element in a new array.
 	*
diff --git a/lib/node_modules/@stdlib/utils/lib/index.js b/lib/node_modules/@stdlib/utils/lib/index.js
index 85a717a6777f..bebce94c9d04 100644
--- a/lib/node_modules/@stdlib/utils/lib/index.js
+++ b/lib/node_modules/@stdlib/utils/lib/index.js
@@ -976,15 +976,6 @@ setReadOnly( utils, 'objectKeys', require( '@stdlib/utils/keys' ) );
 */
 setReadOnly( utils, 'keysIn', require( '@stdlib/utils/keys-in' ) );
 
-/**
-* @name lowercaseKeys
-* @memberof utils
-* @readonly
-* @type {Function}
-* @see {@link module:@stdlib/utils/lowercase-keys}
-*/
-setReadOnly( utils, 'lowercaseKeys', require( '@stdlib/utils/lowercase-keys' ) );
-
 /**
 * @name map
 * @memberof utils

From c3a6f70afdf0149773b502c99f4a04538976d955 Mon Sep 17 00:00:00 2001
From: NEERAJ <neerajrpathak710@gmail.com>
Date: Mon, 22 Dec 2025 13:21:09 +0530
Subject: [PATCH 3/4] refactor: update paths

Ref: https://github.com/stdlib-js/stdlib/issues/8755
---
 lib/node_modules/@stdlib/namespace/alias2pkg/data/data.csv  | 2 +-
 lib/node_modules/@stdlib/namespace/lib/namespace/l.js       | 4 ++--
 lib/node_modules/@stdlib/namespace/lib/namespace/u.js       | 4 ++--
 lib/node_modules/@stdlib/namespace/pkg2alias/data/data.csv  | 2 +-
 .../@stdlib/namespace/pkg2related/data/data.csv             | 6 +++---
 .../@stdlib/namespace/pkg2standalone/data/data.csv          | 2 +-
 .../@stdlib/namespace/standalone2pkg/data/data.csv          | 2 +-
 lib/node_modules/@stdlib/object/uncapitalize-keys/README.md | 4 ++--
 lib/node_modules/@stdlib/utils/uppercase-keys/README.md     | 4 ++--
 9 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/lib/node_modules/@stdlib/namespace/alias2pkg/data/data.csv b/lib/node_modules/@stdlib/namespace/alias2pkg/data/data.csv
index f0bf8e2b4169..34406e9eb61f 100644
--- a/lib/node_modules/@stdlib/namespace/alias2pkg/data/data.csv
+++ b/lib/node_modules/@stdlib/namespace/alias2pkg/data/data.csv
@@ -2521,7 +2521,7 @@ LOG2E,"@stdlib/constants/float64/log2-e"
 LOG10E,"@stdlib/constants/float64/log10-e"
 logspace,"@stdlib/array/logspace"
 lowercase,"@stdlib/string/lowercase"
-lowercaseKeys,"@stdlib/utils/lowercase-keys"
+lowercaseKeys,"@stdlib/object/lowercase-keys"
 lowess,"@stdlib/stats/lowess"
 lpad,"@stdlib/string/left-pad"
 ltrim,"@stdlib/string/left-trim"
diff --git a/lib/node_modules/@stdlib/namespace/lib/namespace/l.js b/lib/node_modules/@stdlib/namespace/lib/namespace/l.js
index 2de3cd81db43..74681331b694 100644
--- a/lib/node_modules/@stdlib/namespace/lib/namespace/l.js
+++ b/lib/node_modules/@stdlib/namespace/lib/namespace/l.js
@@ -201,8 +201,8 @@ ns.push({
 
 ns.push({
 	'alias': 'lowercaseKeys',
-	'path': '@stdlib/utils/lowercase-keys',
-	'value': require( '@stdlib/utils/lowercase-keys' ),
+	'path': '@stdlib/object/lowercase-keys',
+	'value': require( '@stdlib/object/lowercase-keys' ),
 	'type': 'Function',
 	'related': [
 		'@stdlib/object/uncapitalize-keys',
diff --git a/lib/node_modules/@stdlib/namespace/lib/namespace/u.js b/lib/node_modules/@stdlib/namespace/lib/namespace/u.js
index 8c6da157358b..936378bc03a1 100644
--- a/lib/node_modules/@stdlib/namespace/lib/namespace/u.js
+++ b/lib/node_modules/@stdlib/namespace/lib/namespace/u.js
@@ -194,7 +194,7 @@ ns.push({
 	'type': 'Function',
 	'related': [
 		'@stdlib/object/capitalize-keys',
-		'@stdlib/utils/lowercase-keys'
+		'@stdlib/object/lowercase-keys'
 	]
 });
 
@@ -440,7 +440,7 @@ ns.push({
 	'type': 'Function',
 	'related': [
 		'@stdlib/object/capitalize-keys',
-		'@stdlib/utils/lowercase-keys'
+		'@stdlib/object/lowercase-keys'
 	]
 });
 
diff --git a/lib/node_modules/@stdlib/namespace/pkg2alias/data/data.csv b/lib/node_modules/@stdlib/namespace/pkg2alias/data/data.csv
index da5609c6bbd8..08d7bb090fa5 100644
--- a/lib/node_modules/@stdlib/namespace/pkg2alias/data/data.csv
+++ b/lib/node_modules/@stdlib/namespace/pkg2alias/data/data.csv
@@ -2521,7 +2521,7 @@
 "@stdlib/constants/float64/log10-e",LOG10E
 "@stdlib/array/logspace",logspace
 "@stdlib/string/lowercase",lowercase
-"@stdlib/utils/lowercase-keys",lowercaseKeys
+"@stdlib/object/lowercase-keys",lowercaseKeys
 "@stdlib/stats/lowess",lowess
 "@stdlib/string/left-pad",lpad
 "@stdlib/string/left-trim",ltrim
diff --git a/lib/node_modules/@stdlib/namespace/pkg2related/data/data.csv b/lib/node_modules/@stdlib/namespace/pkg2related/data/data.csv
index 9c64b0941945..0ab573caebeb 100644
--- a/lib/node_modules/@stdlib/namespace/pkg2related/data/data.csv
+++ b/lib/node_modules/@stdlib/namespace/pkg2related/data/data.csv
@@ -2521,7 +2521,7 @@
 "@stdlib/constants/float64/log10-e","@stdlib/constants/float64/e,@stdlib/constants/float64/log2-e"
 "@stdlib/array/logspace","@stdlib/array/incrspace,@stdlib/array/linspace"
 "@stdlib/string/lowercase","@stdlib/string/uncapitalize,@stdlib/string/uppercase"
-"@stdlib/utils/lowercase-keys","@stdlib/object/uncapitalize-keys,@stdlib/utils/uppercase-keys"
+"@stdlib/object/lowercase-keys","@stdlib/object/uncapitalize-keys,@stdlib/utils/uppercase-keys"
 "@stdlib/stats/lowess",""
 "@stdlib/string/left-pad","@stdlib/string/pad,@stdlib/string/right-pad"
 "@stdlib/string/left-trim","@stdlib/string/trim,@stdlib/string/right-trim"
@@ -3108,7 +3108,7 @@
 "@stdlib/array/uint32","@stdlib/array/buffer,@stdlib/array/float32,@stdlib/array/float64,@stdlib/array/int16,@stdlib/array/int32,@stdlib/array/int8,@stdlib/array/uint16,@stdlib/array/uint8,@stdlib/array/uint8c"
 "@stdlib/process/umask",""
 "@stdlib/string/uncapitalize","@stdlib/string/capitalize,@stdlib/string/lowercase"
-"@stdlib/object/uncapitalize-keys","@stdlib/object/capitalize-keys,@stdlib/utils/lowercase-keys"
+"@stdlib/object/uncapitalize-keys","@stdlib/object/capitalize-keys,@stdlib/object/lowercase-keys"
 "@stdlib/utils/uncurry","@stdlib/utils/curry,@stdlib/utils/uncurry-right"
 "@stdlib/utils/uncurry-right","@stdlib/utils/curry,@stdlib/utils/curry-right,@stdlib/utils/uncurry"
 "@stdlib/constants/unicode/max","@stdlib/constants/unicode/max-bmp"
@@ -3127,7 +3127,7 @@
 "@stdlib/utils/until-each-right","@stdlib/utils/until-each,@stdlib/utils/while-each-right"
 "@stdlib/utils/unzip","@stdlib/utils/zip"
 "@stdlib/string/uppercase","@stdlib/string/capitalize,@stdlib/string/lowercase"
-"@stdlib/utils/uppercase-keys","@stdlib/object/capitalize-keys,@stdlib/utils/lowercase-keys"
+"@stdlib/utils/uppercase-keys","@stdlib/object/capitalize-keys,@stdlib/object/lowercase-keys"
 "@stdlib/datasets/us-states-abbr","@stdlib/datasets/us-states-capitals,@stdlib/datasets/us-states-names"
 "@stdlib/datasets/us-states-capitals","@stdlib/datasets/us-states-abbr,@stdlib/datasets/us-states-capitals-names,@stdlib/datasets/us-states-names,@stdlib/datasets/us-states-names-capitals"
 "@stdlib/datasets/us-states-capitals-names","@stdlib/datasets/us-states-capitals,@stdlib/datasets/us-states-names,@stdlib/datasets/us-states-names-capitals"
diff --git a/lib/node_modules/@stdlib/namespace/pkg2standalone/data/data.csv b/lib/node_modules/@stdlib/namespace/pkg2standalone/data/data.csv
index 17af207f89cf..a0d719aa0a90 100644
--- a/lib/node_modules/@stdlib/namespace/pkg2standalone/data/data.csv
+++ b/lib/node_modules/@stdlib/namespace/pkg2standalone/data/data.csv
@@ -2521,7 +2521,7 @@
 "@stdlib/constants/float64/log10-e","@stdlib/constants-float64-log10-e"
 "@stdlib/array/logspace","@stdlib/array-logspace"
 "@stdlib/string/lowercase","@stdlib/string-lowercase"
-"@stdlib/utils/lowercase-keys","@stdlib/utils-lowercase-keys"
+"@stdlib/object/lowercase-keys","@stdlib/object-lowercase-keys"
 "@stdlib/stats/lowess","@stdlib/stats-lowess"
 "@stdlib/string/left-pad","@stdlib/string-left-pad"
 "@stdlib/string/left-trim","@stdlib/string-left-trim"
diff --git a/lib/node_modules/@stdlib/namespace/standalone2pkg/data/data.csv b/lib/node_modules/@stdlib/namespace/standalone2pkg/data/data.csv
index ce3b71024f23..c4ddc7ecd2ca 100644
--- a/lib/node_modules/@stdlib/namespace/standalone2pkg/data/data.csv
+++ b/lib/node_modules/@stdlib/namespace/standalone2pkg/data/data.csv
@@ -2521,7 +2521,7 @@
 "@stdlib/constants-float64-log10-e","@stdlib/constants/float64/log10-e"
 "@stdlib/array-logspace","@stdlib/array/logspace"
 "@stdlib/string-lowercase","@stdlib/string/lowercase"
-"@stdlib/utils-lowercase-keys","@stdlib/utils/lowercase-keys"
+"@stdlib/object-lowercase-keys","@stdlib/object/lowercase-keys"
 "@stdlib/stats-lowess","@stdlib/stats/lowess"
 "@stdlib/string-left-pad","@stdlib/string/left-pad"
 "@stdlib/string-left-trim","@stdlib/string/left-trim"
diff --git a/lib/node_modules/@stdlib/object/uncapitalize-keys/README.md b/lib/node_modules/@stdlib/object/uncapitalize-keys/README.md
index bc8b68418c5c..de04e4a9e24e 100644
--- a/lib/node_modules/@stdlib/object/uncapitalize-keys/README.md
+++ b/lib/node_modules/@stdlib/object/uncapitalize-keys/README.md
@@ -116,7 +116,7 @@ console.dir( obj2 );
 ## See Also
 
 -   <span class="package-name">[`@stdlib/object/capitalize-keys`][@stdlib/object/capitalize-keys]</span><span class="delimiter">: </span><span class="description">convert the first letter of each object key to uppercase.</span>
--   <span class="package-name">[`@stdlib/utils/lowercase-keys`][@stdlib/utils/lowercase-keys]</span><span class="delimiter">: </span><span class="description">convert each object key to lowercase.</span>
+-   <span class="package-name">[`@stdlib/object/lowercase-keys`][@stdlib/object/lowercase-keys]</span><span class="delimiter">: </span><span class="description">convert each object key to lowercase.</span>
 
 </section>
 
@@ -130,7 +130,7 @@ console.dir( obj2 );
 
 [@stdlib/object/capitalize-keys]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/object/capitalize-keys
 
-[@stdlib/utils/lowercase-keys]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/utils/lowercase-keys
+[@stdlib/object/lowercase-keys]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/object/lowercase-keys
 
 <!-- </related-links> -->
 
diff --git a/lib/node_modules/@stdlib/utils/uppercase-keys/README.md b/lib/node_modules/@stdlib/utils/uppercase-keys/README.md
index 62856b7235fa..ee617c855af1 100644
--- a/lib/node_modules/@stdlib/utils/uppercase-keys/README.md
+++ b/lib/node_modules/@stdlib/utils/uppercase-keys/README.md
@@ -116,7 +116,7 @@ console.dir( obj2 );
 ## See Also
 
 -   <span class="package-name">[`@stdlib/object/capitalize-keys`][@stdlib/object/capitalize-keys]</span><span class="delimiter">: </span><span class="description">convert the first letter of each object key to uppercase.</span>
--   <span class="package-name">[`@stdlib/utils/lowercase-keys`][@stdlib/utils/lowercase-keys]</span><span class="delimiter">: </span><span class="description">convert each object key to lowercase.</span>
+-   <span class="package-name">[`@stdlib/object/lowercase-keys`][@stdlib/object/lowercase-keys]</span><span class="delimiter">: </span><span class="description">convert each object key to lowercase.</span>
 
 </section>
 
@@ -130,7 +130,7 @@ console.dir( obj2 );
 
 [@stdlib/object/capitalize-keys]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/object/capitalize-keys
 
-[@stdlib/utils/lowercase-keys]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/utils/lowercase-keys
+[@stdlib/object/lowercase-keys]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/object/lowercase-keys
 
 <!-- </related-links> -->
 

From 9acae7a1056a920b2357cb2272bd357f7eb5e46f Mon Sep 17 00:00:00 2001
From: NEERAJ <neerajrpathak710@gmail.com>
Date: Mon, 22 Dec 2025 13:22:55 +0530
Subject: [PATCH 4/4] remove: remove `utils/lowercase-keys`

This commit removes `@stdlib/utils/lowercase-keys` in favor of
`@stdlib/object/lowercase-keys`.

BREAKING CHANGE: remove `utils/lowercase-keys`

To migrate, users should update their require/import paths to use
`@stdlib/object/lowercase-keys` which provides the same API and implementation.

Ref: https://github.com/stdlib-js/stdlib/issues/8755
---
 .../@stdlib/utils/lowercase-keys/README.md    | 139 -------------
 .../lowercase-keys/benchmark/benchmark.js     |  57 ------
 .../utils/lowercase-keys/docs/repl.txt        |  28 ---
 .../lowercase-keys/docs/types/index.d.ts      |  46 -----
 .../utils/lowercase-keys/docs/types/test.ts   |  33 ---
 .../utils/lowercase-keys/examples/index.js    |  33 ---
 .../@stdlib/utils/lowercase-keys/lib/index.js |  45 -----
 .../@stdlib/utils/lowercase-keys/lib/main.js  |  63 ------
 .../@stdlib/utils/lowercase-keys/package.json |  74 -------
 .../@stdlib/utils/lowercase-keys/test/test.js | 191 ------------------
 10 files changed, 709 deletions(-)
 delete mode 100644 lib/node_modules/@stdlib/utils/lowercase-keys/README.md
 delete mode 100644 lib/node_modules/@stdlib/utils/lowercase-keys/benchmark/benchmark.js
 delete mode 100644 lib/node_modules/@stdlib/utils/lowercase-keys/docs/repl.txt
 delete mode 100644 lib/node_modules/@stdlib/utils/lowercase-keys/docs/types/index.d.ts
 delete mode 100644 lib/node_modules/@stdlib/utils/lowercase-keys/docs/types/test.ts
 delete mode 100644 lib/node_modules/@stdlib/utils/lowercase-keys/examples/index.js
 delete mode 100644 lib/node_modules/@stdlib/utils/lowercase-keys/lib/index.js
 delete mode 100644 lib/node_modules/@stdlib/utils/lowercase-keys/lib/main.js
 delete mode 100644 lib/node_modules/@stdlib/utils/lowercase-keys/package.json
 delete mode 100644 lib/node_modules/@stdlib/utils/lowercase-keys/test/test.js

diff --git a/lib/node_modules/@stdlib/utils/lowercase-keys/README.md b/lib/node_modules/@stdlib/utils/lowercase-keys/README.md
deleted file mode 100644
index 700ff2e7d66e..000000000000
--- a/lib/node_modules/@stdlib/utils/lowercase-keys/README.md
+++ /dev/null
@@ -1,139 +0,0 @@
-<!--
-
-@license Apache-2.0
-
-Copyright (c) 2018 The Stdlib Authors.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-
--->
-
-# lowercaseKeys
-
-> Convert each object key to lowercase.
-
-<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
-
-<section class="intro">
-
-</section>
-
-<!-- /.intro -->
-
-<!-- Package usage documentation. -->
-
-<section class="usage">
-
-## Usage
-
-```javascript
-var lowercaseKeys = require( '@stdlib/utils/lowercase-keys' );
-```
-
-#### lowercaseKeys( obj )
-
-Converts each `object` key to lowercase, mapping the transformed keys to a new `object` having the same values.
-
-```javascript
-var obj1 = {
-    'A': 1,
-    'B': 2
-};
-
-var obj2 = lowercaseKeys( obj1 );
-// returns { 'a': 1, 'b': 2 }
-```
-
-</section>
-
-<!-- /.usage -->
-
-<!-- Package usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
-
-<section class="notes">
-
-## Notes
-
--   The function only transforms **own** properties. Hence, the function does **not** transform inherited properties.
--   The function **shallow** copies key values.
-
-</section>
-
-<!-- /.notes -->
-
-<!-- Package usage examples. -->
-
-<section class="examples">
-
-## Examples
-
-<!-- eslint no-undef: "error" -->
-
-```javascript
-var lowercaseKeys = require( '@stdlib/utils/lowercase-keys' );
-
-var obj1 = {
-    'A': 'beep',
-    'B': 'boop',
-    'C': 'foo',
-    'D': 'bar'
-};
-
-var obj2 = lowercaseKeys( obj1 );
-
-console.dir( obj2 );
-// => { 'a': 'beep', 'b': 'boop', 'c': 'foo', 'd': 'bar' }
-```
-
-</section>
-
-<!-- /.examples -->
-
-<!-- Section to include cited references. If references are included, add a horizontal rule *before* the section. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
-
-<section class="references">
-
-</section>
-
-<!-- /.references -->
-
-<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->
-
-<section class="related">
-
-* * *
-
-## See Also
-
--   <span class="package-name">[`@stdlib/object/uncapitalize-keys`][@stdlib/object/uncapitalize-keys]</span><span class="delimiter">: </span><span class="description">convert the first letter of each object key to lowercase.</span>
--   <span class="package-name">[`@stdlib/utils/uppercase-keys`][@stdlib/utils/uppercase-keys]</span><span class="delimiter">: </span><span class="description">convert each object key to uppercase.</span>
-
-</section>
-
-<!-- /.related -->
-
-<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
-
-<section class="links">
-
-<!-- <related-links> -->
-
-[@stdlib/object/uncapitalize-keys]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/object/uncapitalize-keys
-
-[@stdlib/utils/uppercase-keys]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/utils/uppercase-keys
-
-<!-- </related-links> -->
-
-</section>
-
-<!-- /.links -->
diff --git a/lib/node_modules/@stdlib/utils/lowercase-keys/benchmark/benchmark.js b/lib/node_modules/@stdlib/utils/lowercase-keys/benchmark/benchmark.js
deleted file mode 100644
index 270a9d2364f4..000000000000
--- a/lib/node_modules/@stdlib/utils/lowercase-keys/benchmark/benchmark.js
+++ /dev/null
@@ -1,57 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2018 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-// MODULES //
-
-var bench = require( '@stdlib/bench' );
-var randu = require( '@stdlib/random/base/randu' );
-var pkg = require( './../package.json' ).name;
-var lowercaseKeys = require( './../lib' );
-
-
-// MAIN //
-
-bench( pkg, function benchmark( b ) {
-	var obj;
-	var out;
-	var i;
-
-	obj = {
-		'A': 'beep',
-		'B': 'boop',
-		'C': 'foo',
-		'D': 'bar',
-		'E': randu()
-	};
-	b.tic();
-	for ( i = 0; i < b.iterations; i++ ) {
-		obj.E = randu();
-		out = lowercaseKeys( obj );
-		if ( typeof out !== 'object' ) {
-			b.fail( 'should return an object' );
-		}
-	}
-	b.toc();
-	if ( typeof out !== 'object' ) {
-		b.fail( 'should return an object' );
-	}
-	b.pass( 'benchmark finished' );
-	b.end();
-});
diff --git a/lib/node_modules/@stdlib/utils/lowercase-keys/docs/repl.txt b/lib/node_modules/@stdlib/utils/lowercase-keys/docs/repl.txt
deleted file mode 100644
index 8faefd592f45..000000000000
--- a/lib/node_modules/@stdlib/utils/lowercase-keys/docs/repl.txt
+++ /dev/null
@@ -1,28 +0,0 @@
-
-{{alias}}( obj )
-    Converts each object key to lowercase.
-
-    The function only transforms own properties. Hence, the function does not
-    transform inherited properties.
-
-    The function shallow copies key values.
-
-    Parameters
-    ----------
-    obj: Object
-        Source object.
-
-    Returns
-    -------
-    out: Object
-        New object.
-
-    Examples
-    --------
-    > var obj = { 'A': 1, 'B': 2 };
-    > var out = {{alias}}( obj )
-    { 'a': 1, 'b': 2 }
-
-    See Also
-    --------
-
diff --git a/lib/node_modules/@stdlib/utils/lowercase-keys/docs/types/index.d.ts b/lib/node_modules/@stdlib/utils/lowercase-keys/docs/types/index.d.ts
deleted file mode 100644
index 7eba790e877a..000000000000
--- a/lib/node_modules/@stdlib/utils/lowercase-keys/docs/types/index.d.ts
+++ /dev/null
@@ -1,46 +0,0 @@
-/*
-* @license Apache-2.0
-*
-* Copyright (c) 2019 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-// TypeScript Version: 4.1
-
-/**
-* Converts each object key to lowercase.
-*
-* ## Notes
-*
-* -   The function only transforms own properties. Hence, the function does not transform inherited properties.
-* -   The function shallow copies key values.
-*
-* @param obj - source object
-* @returns new object
-*
-* @example
-* var obj1 = {
-*     'A': 1,
-*     'B': 2
-* };
-*
-* var obj2 = lowercaseKeys( obj1 );
-* // returns { 'a': 1, 'b': 2 }
-*/
-declare function lowercaseKeys( obj: Object ): Object;
-
-
-// EXPORTS //
-
-export = lowercaseKeys;
diff --git a/lib/node_modules/@stdlib/utils/lowercase-keys/docs/types/test.ts b/lib/node_modules/@stdlib/utils/lowercase-keys/docs/types/test.ts
deleted file mode 100644
index c8513b6aafe4..000000000000
--- a/lib/node_modules/@stdlib/utils/lowercase-keys/docs/types/test.ts
+++ /dev/null
@@ -1,33 +0,0 @@
-/*
-* @license Apache-2.0
-*
-* Copyright (c) 2019 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-import lowercaseKeys = require( './index' );
-
-
-// TESTS //
-
-// The function returns an object...
-{
-	lowercaseKeys( { 'beep': 1, 'boop': 2 } ); // $ExpectType Object
-}
-
-// The compiler throws an error if the function is provided an incorrect number of arguments...
-{
-	lowercaseKeys(); // $ExpectError
-	lowercaseKeys( [], 2 ); // $ExpectError
-}
diff --git a/lib/node_modules/@stdlib/utils/lowercase-keys/examples/index.js b/lib/node_modules/@stdlib/utils/lowercase-keys/examples/index.js
deleted file mode 100644
index 92e0a4ccab1a..000000000000
--- a/lib/node_modules/@stdlib/utils/lowercase-keys/examples/index.js
+++ /dev/null
@@ -1,33 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2018 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-var lowercaseKeys = require( './../lib' );
-
-var obj1 = {
-	'A': 'beep',
-	'B': 'boop',
-	'C': 'foo',
-	'D': 'bar'
-};
-
-var obj2 = lowercaseKeys( obj1 );
-
-console.dir( obj2 );
-// => { 'a': 'beep', 'b': 'boop', 'c': 'foo', 'd': 'bar' }
diff --git a/lib/node_modules/@stdlib/utils/lowercase-keys/lib/index.js b/lib/node_modules/@stdlib/utils/lowercase-keys/lib/index.js
deleted file mode 100644
index e7df1e4dd0fd..000000000000
--- a/lib/node_modules/@stdlib/utils/lowercase-keys/lib/index.js
+++ /dev/null
@@ -1,45 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2018 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-/**
-* Convert each object key to lowercase.
-*
-* @module @stdlib/utils/lowercase-keys
-*
-* @example
-* var lowercaseKeys = require( '@stdlib/utils/lowercase-keys' );
-*
-* var obj1 = {
-*     'A': 1,
-*     'B': 2
-* };
-*
-* var obj2 = lowercaseKeys( obj1 );
-* // returns { 'a': 1, 'b': 2 }
-*/
-
-// MODULES //
-
-var main = require( './main.js' );
-
-
-// EXPORTS //
-
-module.exports = main;
diff --git a/lib/node_modules/@stdlib/utils/lowercase-keys/lib/main.js b/lib/node_modules/@stdlib/utils/lowercase-keys/lib/main.js
deleted file mode 100644
index 8725a1b3a868..000000000000
--- a/lib/node_modules/@stdlib/utils/lowercase-keys/lib/main.js
+++ /dev/null
@@ -1,63 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2018 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-// MODULES //
-
-var hasOwnProp = require( '@stdlib/assert/has-own-property' );
-var format = require( '@stdlib/string/format' );
-
-
-// MAIN //
-
-/**
-* Converts each object key to lowercase.
-*
-* @param {Object} obj - source object
-* @throws {TypeError} must provide an object
-* @returns {Object} new object
-*
-* @example
-* var obj1 = {
-*     'A': 1,
-*     'B': 2
-* };
-*
-* var obj2 = lowercaseKeys( obj1 );
-* // returns { 'a': 1, 'b': 2 }
-*/
-function lowercaseKeys( obj ) {
-	var out;
-	var key;
-	if ( typeof obj !== 'object' || obj === null ) {
-		throw new TypeError( format( 'invalid argument. Must provide an object. Value: `%s`.', obj ) );
-	}
-	out = {};
-	for ( key in obj ) {
-		if ( hasOwnProp( obj, key ) ) {
-			out[ key.toLowerCase() ] = obj[ key ];
-		}
-	}
-	return out;
-}
-
-
-// EXPORTS //
-
-module.exports = lowercaseKeys;
diff --git a/lib/node_modules/@stdlib/utils/lowercase-keys/package.json b/lib/node_modules/@stdlib/utils/lowercase-keys/package.json
deleted file mode 100644
index 6d8efef6edbb..000000000000
--- a/lib/node_modules/@stdlib/utils/lowercase-keys/package.json
+++ /dev/null
@@ -1,74 +0,0 @@
-{
-  "name": "@stdlib/utils/lowercase-keys",
-  "version": "0.0.0",
-  "description": "Convert each object key to lowercase.",
-  "license": "Apache-2.0",
-  "author": {
-    "name": "The Stdlib Authors",
-    "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
-  },
-  "contributors": [
-    {
-      "name": "The Stdlib Authors",
-      "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
-    }
-  ],
-  "main": "./lib",
-  "directories": {
-    "benchmark": "./benchmark",
-    "doc": "./docs",
-    "example": "./examples",
-    "lib": "./lib",
-    "test": "./test"
-  },
-  "types": "./docs/types",
-  "scripts": {},
-  "homepage": "https://github.com/stdlib-js/stdlib",
-  "repository": {
-    "type": "git",
-    "url": "git://github.com/stdlib-js/stdlib.git"
-  },
-  "bugs": {
-    "url": "https://github.com/stdlib-js/stdlib/issues"
-  },
-  "dependencies": {},
-  "devDependencies": {},
-  "engines": {
-    "node": ">=0.10.0",
-    "npm": ">2.7.0"
-  },
-  "os": [
-    "aix",
-    "darwin",
-    "freebsd",
-    "linux",
-    "macos",
-    "openbsd",
-    "sunos",
-    "win32",
-    "windows"
-  ],
-  "keywords": [
-    "stdlib",
-    "stdutils",
-    "stdutil",
-    "utilities",
-    "utility",
-    "utils",
-    "util",
-    "map",
-    "transform",
-    "lowercase",
-    "copy",
-    "cp",
-    "clone",
-    "extract",
-    "property",
-    "props",
-    "properties",
-    "keys",
-    "object",
-    "array",
-    "obj"
-  ]
-}
diff --git a/lib/node_modules/@stdlib/utils/lowercase-keys/test/test.js b/lib/node_modules/@stdlib/utils/lowercase-keys/test/test.js
deleted file mode 100644
index 9d88436e6d1c..000000000000
--- a/lib/node_modules/@stdlib/utils/lowercase-keys/test/test.js
+++ /dev/null
@@ -1,191 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2018 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-// MODULES //
-
-var tape = require( 'tape' );
-var lowercaseKeys = require( './../lib' );
-
-
-// TESTS //
-
-tape( 'main export is a function', function test( t ) {
-	t.ok( true, __filename );
-	t.strictEqual( typeof lowercaseKeys, 'function', 'main export is a function' );
-	t.end();
-});
-
-tape( 'the function throws an error if provided a source object argument which is not an object', function test( t ) {
-	var values;
-	var i;
-
-	values = [
-		'5',
-		5,
-		NaN,
-		null,
-		void 0,
-		true
-	];
-
-	for ( i = 0; i < values.length; i++ ) {
-		t.throws( badValue( values[i] ), TypeError, 'throws a type error when provided '+values[i] );
-	}
-	t.end();
-
-	function badValue( value ) {
-		return function badValue() {
-			lowercaseKeys( value );
-		};
-	}
-});
-
-tape( 'the function lowercases keys from a source object, mapping the transformed keys to a destination object having the same key values', function test( t ) {
-	var expected;
-	var obj1;
-	var obj2;
-
-	obj1 = {
-		'': 3.14,
-		'bEeP': 0,
-		'A': 1,
-		'B': 2,
-		'C': 3,
-		'D': 4,
-		'E': 5
-	};
-
-	obj2 = lowercaseKeys( obj1 );
-
-	expected = {
-		'': 3.14,
-		'beep': 0,
-		'a': 1,
-		'b': 2,
-		'c': 3,
-		'd': 4,
-		'e': 5
-	};
-
-	t.deepEqual( obj2, expected, 'returns expected object' );
-	t.end();
-});
-
-tape( 'the function ignores inherited properties', function test( t ) {
-	var expected;
-	var obj1;
-	var obj2;
-
-	function Foo() {
-		this.A = 1;
-		this.B = 2;
-		this.C = 3;
-		this.D = 4;
-		this.E = 5;
-		return this;
-	}
-
-	Foo.prototype.F = 6;
-	Foo.prototype.G = 7;
-
-	obj1 = new Foo();
-
-	obj2 = lowercaseKeys( obj1 );
-
-	expected = {
-		'a': 1,
-		'b': 2,
-		'c': 3,
-		'd': 4,
-		'e': 5
-	};
-
-	t.deepEqual( obj2, expected, 'returns expected object' );
-	t.end();
-});
-
-tape( 'the function accepts non-plain objects', function test( t ) {
-	var expected;
-	var obj1;
-	var obj2;
-
-	obj1 = [ 0, 1, 2, 3, 4, 5 ];
-
-	obj2 = lowercaseKeys( obj1 );
-
-	expected = {
-		'0': 0,
-		'1': 1,
-		'2': 2,
-		'3': 3,
-		'4': 4,
-		'5': 5
-	};
-
-	t.deepEqual( obj2, expected, 'returns expected object' );
-	t.end();
-});
-
-tape( 'the function shallow copies key values', function test( t ) {
-	var expected;
-	var obj1;
-	var obj2;
-
-	obj1 = {
-		'A': [ 1 ],
-		'B': [ 2 ],
-		'C': [ 3 ],
-		'D': [ 4 ],
-		'E': [ 5 ]
-	};
-
-	obj2 = lowercaseKeys( obj1 );
-
-	expected = {
-		'a': obj1.A,
-		'b': obj1.B,
-		'c': obj1.C,
-		'd': obj1.D,
-		'e': obj1.E
-	};
-
-	t.deepEqual( obj2, expected, 'returns expected object' );
-	t.strictEqual( obj2.a, obj1.A, 'returns shallow copy' );
-	t.strictEqual( obj2.b, obj1.B, 'returns shallow copy' );
-	t.strictEqual( obj2.c, obj1.C, 'returns shallow copy' );
-	t.strictEqual( obj2.d, obj1.D, 'returns shallow copy' );
-	t.strictEqual( obj2.e, obj1.E, 'returns shallow copy' );
-
-	t.end();
-});
-
-tape( 'if provided an empty object, the function returns an empty object', function test( t ) {
-	var expected;
-	var obj1;
-	var obj2;
-
-	obj1 = {};
-	expected = {};
-
-	obj2 = lowercaseKeys( obj1 );
-
-	t.deepEqual( obj2, expected, 'returns expected object' );
-	t.end();
-});