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@@ -0,0 +1,13 @@
+{
+	"root": true,
+
+	"extends": "@ljharb",
+
+	"rules": {
+		"new-cap": [2, {
+			"capIsNewExceptions": [
+				"GetIntrinsic",
+			],
+		}],
+	},
+}
@@ -0,0 +1,12 @@
+# These are supported funding model platforms
+
+github: [ljharb]
+patreon: # Replace with a single Patreon username
+open_collective: # Replace with a single Open Collective username
+ko_fi: # Replace with a single Ko-fi username
+tidelift: npm/call-bound
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+otechie: # Replace with a single Otechie username
+custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']
@@ -0,0 +1,9 @@
+{
+	"all": true,
+	"check-coverage": false,
+	"reporter": ["text-summary", "text", "html", "json"],
+	"exclude": [
+		"coverage",
+		"test"
+	]
+}
@@ -0,0 +1,42 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [v1.0.4](https://github.com/ljharb/call-bound/compare/v1.0.3...v1.0.4) - 2025-03-03
+
+### Commits
+
+- [types] improve types [`e648922`](https://github.com/ljharb/call-bound/commit/e6489222a9e54f350fbf952ceabe51fd8b6027ff)
+- [Dev Deps] update `@arethetypeswrong/cli`, `@ljharb/tsconfig`, `@types/tape`, `es-value-fixtures`, `for-each`, `has-strict-mode`, `object-inspect` [`a42a5eb`](https://github.com/ljharb/call-bound/commit/a42a5ebe6c1b54fcdc7997c7dc64fdca9e936719)
+- [Deps] update `call-bind-apply-helpers`, `get-intrinsic` [`f529eac`](https://github.com/ljharb/call-bound/commit/f529eac132404c17156bbc23ab2297a25d0f20b8)
+
+## [v1.0.3](https://github.com/ljharb/call-bound/compare/v1.0.2...v1.0.3) - 2024-12-15
+
+### Commits
+
+- [Refactor] use `call-bind-apply-helpers` instead of `call-bind` [`5e0b134`](https://github.com/ljharb/call-bound/commit/5e0b13496df14fb7d05dae9412f088da8d3f75be)
+- [Deps] update `get-intrinsic` [`41fc967`](https://github.com/ljharb/call-bound/commit/41fc96732a22c7b7e8f381f93ccc54bb6293be2e)
+- [readme] fix example [`79a0137`](https://github.com/ljharb/call-bound/commit/79a0137723f7c6d09c9c05452bbf8d5efb5d6e49)
+- [meta] add `sideEffects` flag [`08b07be`](https://github.com/ljharb/call-bound/commit/08b07be7f1c03f67dc6f3cdaf0906259771859f7)
+
+## [v1.0.2](https://github.com/ljharb/call-bound/compare/v1.0.1...v1.0.2) - 2024-12-10
+
+### Commits
+
+- [Dev Deps] update `@arethetypeswrong/cli`, `@ljharb/tsconfig`, `gopd` [`e6a5ffe`](https://github.com/ljharb/call-bound/commit/e6a5ffe849368fe4f74dfd6cdeca1b9baa39e8d5)
+- [Deps] update `call-bind`, `get-intrinsic` [`2aeb5b5`](https://github.com/ljharb/call-bound/commit/2aeb5b521dc2b2683d1345c753ea1161de2d1c14)
+- [types] improve return type [`1a0c9fe`](https://github.com/ljharb/call-bound/commit/1a0c9fe3114471e7ca1f57d104e2efe713bb4871)
+
+## v1.0.1 - 2024-12-05
+
+### Commits
+
+- Initial implementation, tests, readme, types [`6d94121`](https://github.com/ljharb/call-bound/commit/6d94121a9243602e506334069f7a03189fe3363d)
+- Initial commit [`0eae867`](https://github.com/ljharb/call-bound/commit/0eae867334ea025c33e6e91cdecfc9df96680cf9)
+- npm init [`71b2479`](https://github.com/ljharb/call-bound/commit/71b2479c6723e0b7d91a6b663613067e98b7b275)
+- Only apps should have lockfiles [`c3754a9`](https://github.com/ljharb/call-bound/commit/c3754a949b7f9132b47e2d18c1729889736741eb)
+- [actions] skip `npm ls` in node &lt; 10 [`74275a5`](https://github.com/ljharb/call-bound/commit/74275a5186b8caf6309b6b97472bdcb0df4683a8)
+- [Dev Deps] add missing peer dep [`1354de8`](https://github.com/ljharb/call-bound/commit/1354de8679413e4ae9c523d85f76fa7a5e032d97)
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2024 Jordan Harband
+
+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.
@@ -0,0 +1,53 @@
+# call-bound <sup>[![Version Badge][npm-version-svg]][package-url]</sup>
+
+[![github actions][actions-image]][actions-url]
+[![coverage][codecov-image]][codecov-url]
+[![dependency status][deps-svg]][deps-url]
+[![dev dependency status][dev-deps-svg]][dev-deps-url]
+[![License][license-image]][license-url]
+[![Downloads][downloads-image]][downloads-url]
+
+[![npm badge][npm-badge-png]][package-url]
+
+Robust call-bound JavaScript intrinsics, using `call-bind` and `get-intrinsic`.
+
+## Getting started
+
+```sh
+npm install --save call-bound
+```
+
+## Usage/Examples
+
+```js
+const assert = require('assert');
+const callBound = require('call-bound');
+
+const slice = callBound('Array.prototype.slice');
+
+delete Function.prototype.call;
+delete Function.prototype.bind;
+delete Array.prototype.slice;
+
+assert.deepEqual(slice([1, 2, 3, 4], 1, -1), [2, 3]);
+```
+
+## Tests
+
+Clone the repo, `npm install`, and run `npm test`
+
+[package-url]: https://npmjs.org/package/call-bound
+[npm-version-svg]: https://versionbadg.es/ljharb/call-bound.svg
+[deps-svg]: https://david-dm.org/ljharb/call-bound.svg
+[deps-url]: https://david-dm.org/ljharb/call-bound
+[dev-deps-svg]: https://david-dm.org/ljharb/call-bound/dev-status.svg
+[dev-deps-url]: https://david-dm.org/ljharb/call-bound#info=devDependencies
+[npm-badge-png]: https://nodei.co/npm/call-bound.png?downloads=true&stars=true
+[license-image]: https://img.shields.io/npm/l/call-bound.svg
+[license-url]: LICENSE
+[downloads-image]: https://img.shields.io/npm/dm/call-bound.svg
+[downloads-url]: https://npm-stat.com/charts.html?package=call-bound
+[codecov-image]: https://codecov.io/gh/ljharb/call-bound/branch/main/graphs/badge.svg
+[codecov-url]: https://app.codecov.io/gh/ljharb/call-bound/
+[actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/ljharb/call-bound
+[actions-url]: https://github.com/ljharb/call-bound/actions
@@ -0,0 +1,94 @@
+type Intrinsic = typeof globalThis;
+
+type IntrinsicName = keyof Intrinsic | `%${keyof Intrinsic}%`;
+
+type IntrinsicPath = IntrinsicName | `${StripPercents<IntrinsicName>}.${string}` | `%${StripPercents<IntrinsicName>}.${string}%`;
+
+type AllowMissing = boolean;
+
+type StripPercents<T extends string> = T extends `%${infer U}%` ? U : T;
+
+type BindMethodPrecise<F> =
+  F extends (this: infer This, ...args: infer Args) => infer R
+  ? (obj: This, ...args: Args) => R
+  : F extends {
+    (this: infer This1, ...args: infer Args1): infer R1;
+    (this: infer This2, ...args: infer Args2): infer R2
+  }
+  ? {
+    (obj: This1, ...args: Args1): R1;
+    (obj: This2, ...args: Args2): R2
+  }
+  : never
+
+// Extract method type from a prototype
+type GetPrototypeMethod<T extends keyof typeof globalThis, M extends string> =
+  (typeof globalThis)[T] extends { prototype: any }
+  ? M extends keyof (typeof globalThis)[T]['prototype']
+  ? (typeof globalThis)[T]['prototype'][M]
+  : never
+  : never
+
+// Get static property/method
+type GetStaticMember<T extends keyof typeof globalThis, P extends string> =
+  P extends keyof (typeof globalThis)[T] ? (typeof globalThis)[T][P] : never
+
+// Type that maps string path to actual bound function or value with better precision
+type BoundIntrinsic<S extends string> =
+  S extends `${infer Obj}.prototype.${infer Method}`
+  ? Obj extends keyof typeof globalThis
+  ? BindMethodPrecise<GetPrototypeMethod<Obj, Method & string>>
+  : unknown
+  : S extends `${infer Obj}.${infer Prop}`
+  ? Obj extends keyof typeof globalThis
+  ? GetStaticMember<Obj, Prop & string>
+  : unknown
+  : unknown
+
+declare function arraySlice<T>(array: readonly T[], start?: number, end?: number): T[];
+declare function arraySlice<T>(array: ArrayLike<T>, start?: number, end?: number): T[];
+declare function arraySlice<T>(array: IArguments, start?: number, end?: number): T[];
+
+// Special cases for methods that need explicit typing
+interface SpecialCases {
+  '%Object.prototype.isPrototypeOf%': (thisArg: {}, obj: unknown) => boolean;
+  '%String.prototype.replace%': {
+    (str: string, searchValue: string | RegExp, replaceValue: string): string;
+    (str: string, searchValue: string | RegExp, replacer: (substring: string, ...args: any[]) => string): string
+  };
+  '%Object.prototype.toString%': (obj: {}) => string;
+  '%Object.prototype.hasOwnProperty%': (obj: {}, v: PropertyKey) => boolean;
+  '%Array.prototype.slice%': typeof arraySlice;
+  '%Array.prototype.map%': <T, U>(array: readonly T[], callbackfn: (value: T, index: number, array: readonly T[]) => U, thisArg?: any) => U[];
+  '%Array.prototype.filter%': <T>(array: readonly T[], predicate: (value: T, index: number, array: readonly T[]) => unknown, thisArg?: any) => T[];
+  '%Array.prototype.indexOf%': <T>(array: readonly T[], searchElement: T, fromIndex?: number) => number;
+  '%Function.prototype.apply%': <T, A extends any[], R>(fn: (...args: A) => R, thisArg: any, args: A) => R;
+  '%Function.prototype.call%': <T, A extends any[], R>(fn: (...args: A) => R, thisArg: any, ...args: A) => R;
+  '%Function.prototype.bind%': <T, A extends any[], R>(fn: (...args: A) => R, thisArg: any, ...args: A) => (...remainingArgs: A) => R;
+  '%Promise.prototype.then%': {
+    <T, R>(promise: Promise<T>, onfulfilled: (value: T) => R | PromiseLike<R>): Promise<R>;
+    <T, R>(promise: Promise<T>, onfulfilled: ((value: T) => R | PromiseLike<R>) | undefined | null, onrejected: (reason: any) => R | PromiseLike<R>): Promise<R>;
+  };
+  '%RegExp.prototype.test%': (regexp: RegExp, str: string) => boolean;
+  '%RegExp.prototype.exec%': (regexp: RegExp, str: string) => RegExpExecArray | null;
+  '%Error.prototype.toString%': (error: Error) => string;
+  '%TypeError.prototype.toString%': (error: TypeError) => string;
+  '%String.prototype.split%': (
+        obj: unknown,
+        splitter: string | RegExp | {
+            [Symbol.split](string: string, limit?: number): string[];
+        },
+        limit?: number | undefined
+    ) => string[];
+}
+
+/**
+ * Returns a bound function for a prototype method, or a value for a static property.
+ *
+ * @param name - The name of the intrinsic (e.g. 'Array.prototype.slice')
+ * @param {AllowMissing} [allowMissing] - Whether to allow missing intrinsics (default: false)
+ */
+declare function callBound<K extends keyof SpecialCases | StripPercents<keyof SpecialCases>, S extends IntrinsicPath>(name: K, allowMissing?: AllowMissing): SpecialCases[`%${StripPercents<K>}%`];
+declare function callBound<K extends keyof SpecialCases | StripPercents<keyof SpecialCases>, S extends IntrinsicPath>(name: S, allowMissing?: AllowMissing): BoundIntrinsic<S>;
+
+export = callBound;
@@ -0,0 +1,19 @@
+'use strict';
+
+var GetIntrinsic = require('get-intrinsic');
+
+var callBindBasic = require('call-bind-apply-helpers');
+
+/** @type {(thisArg: string, searchString: string, position?: number) => number} */
+var $indexOf = callBindBasic([GetIntrinsic('%String.prototype.indexOf%')]);
+
+/** @type {import('.')} */
+module.exports = function callBoundIntrinsic(name, allowMissing) {
+	/* eslint no-extra-parens: 0 */
+
+	var intrinsic = /** @type {(this: unknown, ...args: unknown[]) => unknown} */ (GetIntrinsic(name, !!allowMissing));
+	if (typeof intrinsic === 'function' && $indexOf(name, '.prototype.') > -1) {
+		return callBindBasic(/** @type {const} */ ([intrinsic]));
+	}
+	return intrinsic;
+};
@@ -0,0 +1,99 @@
+{
+	"name": "call-bound",
+	"version": "1.0.4",
+	"description": "Robust call-bound JavaScript intrinsics, using `call-bind` and `get-intrinsic`.",
+	"main": "index.js",
+	"exports": {
+		".": "./index.js",
+		"./package.json": "./package.json"
+	},
+	"sideEffects": false,
+	"scripts": {
+		"prepack": "npmignore --auto --commentLines=auto",
+		"prepublish": "not-in-publish || npm run prepublishOnly",
+		"prepublishOnly": "safe-publish-latest",
+		"prelint": "evalmd README.md",
+		"lint": "eslint --ext=.js,.mjs .",
+		"postlint": "tsc -p . && attw -P",
+		"pretest": "npm run lint",
+		"tests-only": "nyc tape 'test/**/*.js'",
+		"test": "npm run tests-only",
+		"posttest": "npx npm@'>=10.2' audit --production",
+		"version": "auto-changelog && git add CHANGELOG.md",
+		"postversion": "auto-changelog && git add CHANGELOG.md && git commit --no-edit --amend && git tag -f \"v$(node -e \"console.log(require('./package.json').version)\")\""
+	},
+	"repository": {
+		"type": "git",
+		"url": "git+https://github.com/ljharb/call-bound.git"
+	},
+	"keywords": [
+		"javascript",
+		"ecmascript",
+		"es",
+		"js",
+		"callbind",
+		"callbound",
+		"call",
+		"bind",
+		"bound",
+		"call-bind",
+		"call-bound",
+		"function",
+		"es-abstract"
+	],
+	"author": "Jordan Harband <ljharb@gmail.com>",
+	"funding": {
+		"url": "https://github.com/sponsors/ljharb"
+	},
+	"license": "MIT",
+	"bugs": {
+		"url": "https://github.com/ljharb/call-bound/issues"
+	},
+	"homepage": "https://github.com/ljharb/call-bound#readme",
+	"dependencies": {
+		"call-bind-apply-helpers": "^1.0.2",
+		"get-intrinsic": "^1.3.0"
+	},
+	"devDependencies": {
+		"@arethetypeswrong/cli": "^0.17.4",
+		"@ljharb/eslint-config": "^21.1.1",
+		"@ljharb/tsconfig": "^0.3.0",
+		"@types/call-bind": "^1.0.5",
+		"@types/get-intrinsic": "^1.2.3",
+		"@types/tape": "^5.8.1",
+		"auto-changelog": "^2.5.0",
+		"encoding": "^0.1.13",
+		"es-value-fixtures": "^1.7.1",
+		"eslint": "=8.8.0",
+		"evalmd": "^0.0.19",
+		"for-each": "^0.3.5",
+		"gopd": "^1.2.0",
+		"has-strict-mode": "^1.1.0",
+		"in-publish": "^2.0.1",
+		"npmignore": "^0.3.1",
+		"nyc": "^10.3.2",
+		"object-inspect": "^1.13.4",
+		"safe-publish-latest": "^2.0.0",
+		"tape": "^5.9.0",
+		"typescript": "next"
+	},
+	"testling": {
+		"files": "test/index.js"
+	},
+	"auto-changelog": {
+		"output": "CHANGELOG.md",
+		"template": "keepachangelog",
+		"unreleased": false,
+		"commitLimit": false,
+		"backfillLimit": false,
+		"hideCredit": true
+	},
+	"publishConfig": {
+		"ignore": [
+			".github/workflows"
+		]
+	},
+	"engines": {
+		"node": ">= 0.4"
+	}
+}
@@ -0,0 +1,61 @@
+'use strict';
+
+var test = require('tape');
+
+var callBound = require('../');
+
+/** @template {true} T @template U @typedef {T extends U ? T : never} AssertType */
+
+test('callBound', function (t) {
+	// static primitive
+	t.equal(callBound('Array.length'), Array.length, 'Array.length yields itself');
+	t.equal(callBound('%Array.length%'), Array.length, '%Array.length% yields itself');
+
+	// static non-function object
+	t.equal(callBound('Array.prototype'), Array.prototype, 'Array.prototype yields itself');
+	t.equal(callBound('%Array.prototype%'), Array.prototype, '%Array.prototype% yields itself');
+	t.equal(callBound('Array.constructor'), Array.constructor, 'Array.constructor yields itself');
+	t.equal(callBound('%Array.constructor%'), Array.constructor, '%Array.constructor% yields itself');
+
+	// static function
+	t.equal(callBound('Date.parse'), Date.parse, 'Date.parse yields itself');
+	t.equal(callBound('%Date.parse%'), Date.parse, '%Date.parse% yields itself');
+
+	// prototype primitive
+	t.equal(callBound('Error.prototype.message'), Error.prototype.message, 'Error.prototype.message yields itself');
+	t.equal(callBound('%Error.prototype.message%'), Error.prototype.message, '%Error.prototype.message% yields itself');
+
+	var x = callBound('Object.prototype.toString');
+	var y = callBound('%Object.prototype.toString%');
+
+	// prototype function
+	t.notEqual(x, Object.prototype.toString, 'Object.prototype.toString does not yield itself');
+	t.notEqual(y, Object.prototype.toString, '%Object.prototype.toString% does not yield itself');
+	t.equal(x(true), Object.prototype.toString.call(true), 'call-bound Object.prototype.toString calls into the original');
+	t.equal(y(true), Object.prototype.toString.call(true), 'call-bound %Object.prototype.toString% calls into the original');
+
+	t['throws'](
+		// @ts-expect-error
+		function () { callBound('does not exist'); },
+		SyntaxError,
+		'nonexistent intrinsic throws'
+	);
+	t['throws'](
+		// @ts-expect-error
+		function () { callBound('does not exist', true); },
+		SyntaxError,
+		'allowMissing arg still throws for unknown intrinsic'
+	);
+
+	t.test('real but absent intrinsic', { skip: typeof WeakRef !== 'undefined' }, function (st) {
+		st['throws'](
+			function () { callBound('WeakRef'); },
+			TypeError,
+			'real but absent intrinsic throws'
+		);
+		st.equal(callBound('WeakRef', true), undefined, 'allowMissing arg avoids exception');
+		st.end();
+	});
+
+	t.end();
+});
@@ -0,0 +1,10 @@
+{
+	"extends": "@ljharb/tsconfig",
+	"compilerOptions": {
+		"target": "ESNext",
+		"lib": ["es2024"],
+	},
+	"exclude": [
+		"coverage",
+	],
+}
@@ -0,0 +1,5 @@
+{
+	"root": true,
+
+	"extends": "@ljharb",
+}
@@ -0,0 +1,12 @@
+# These are supported funding model platforms
+
+github: [ljharb]
+patreon: # Replace with a single Patreon username
+open_collective: # Replace with a single Open Collective username
+ko_fi: # Replace with a single Ko-fi username
+tidelift: npm/has-tostringtag
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+otechie: # Replace with a single Otechie username
+custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']
@@ -0,0 +1,13 @@
+{
+	"all": true,
+	"check-coverage": false,
+	"reporter": ["text-summary", "text", "html", "json"],
+	"lines": 86,
+	"statements": 85.93,
+	"functions": 82.43,
+	"branches": 76.06,
+	"exclude": [
+		"coverage",
+		"test"
+	]
+}
@@ -0,0 +1,42 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [v1.0.2](https://github.com/inspect-js/has-tostringtag/compare/v1.0.1...v1.0.2) - 2024-02-01
+
+### Fixed
+
+- [Fix] move `has-symbols` back to prod deps [`#3`](https://github.com/inspect-js/has-tostringtag/issues/3)
+
+## [v1.0.1](https://github.com/inspect-js/has-tostringtag/compare/v1.0.0...v1.0.1) - 2024-02-01
+
+### Commits
+
+- [patch] add types [`9276414`](https://github.com/inspect-js/has-tostringtag/commit/9276414b22fab3eeb234688841722c4be113201f)
+- [meta] use `npmignore` to autogenerate an npmignore file [`5c0dcd1`](https://github.com/inspect-js/has-tostringtag/commit/5c0dcd1ff66419562a30d1fd88b966cc36bce5fc)
+- [actions] reuse common workflows [`dee9509`](https://github.com/inspect-js/has-tostringtag/commit/dee950904ab5719b62cf8d73d2ac950b09093266)
+- [actions] update codecov uploader [`b8cb3a0`](https://github.com/inspect-js/has-tostringtag/commit/b8cb3a0b8ffbb1593012c4c2daa45fb25642825d)
+- [Tests] generate coverage [`be5b288`](https://github.com/inspect-js/has-tostringtag/commit/be5b28889e2735cdbcef387f84c2829995f2f05e)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `safe-publish-latest`, `tape` [`69a0827`](https://github.com/inspect-js/has-tostringtag/commit/69a0827974e9b877b2c75b70b057555da8f25a65)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `aud`, `auto-changelog`, `tape` [`4c9e210`](https://github.com/inspect-js/has-tostringtag/commit/4c9e210a5682f0557a3235d36b68ce809d7fb825)
+- [actions] update rebase action to use reusable workflow [`ca8dcd3`](https://github.com/inspect-js/has-tostringtag/commit/ca8dcd3a6f3f5805d7e3fd461b654aedba0946e7)
+- [Dev Deps] update `@ljharb/eslint-config`, `aud`, `npmignore`, `tape` [`07f3eaf`](https://github.com/inspect-js/has-tostringtag/commit/07f3eafa45dd98208c94479737da77f9a69b94c4)
+- [Deps] update `has-symbols` [`999e009`](https://github.com/inspect-js/has-tostringtag/commit/999e0095a7d1749a58f55472ec8bf8108cdfdcf3)
+- [Tests] remove staging tests since they fail on modern node [`9d9526b`](https://github.com/inspect-js/has-tostringtag/commit/9d9526b1dc1ca7f2292b52efda4c3d857b0e39bd)
+
+## v1.0.0 - 2021-08-05
+
+### Commits
+
+- Tests [`6b6f573`](https://github.com/inspect-js/has-tostringtag/commit/6b6f5734dc2058badb300ff0783efdad95fe1a65)
+- Initial commit [`2f8190e`](https://github.com/inspect-js/has-tostringtag/commit/2f8190e799fac32ba9b95a076c0255e01d7ce475)
+- [meta] do not publish github action workflow files [`6e08cc4`](https://github.com/inspect-js/has-tostringtag/commit/6e08cc4e0fea7ec71ef66e70734b2af2c4a8b71b)
+- readme [`94bed6c`](https://github.com/inspect-js/has-tostringtag/commit/94bed6c9560cbbfda034f8d6c260bb7b0db33c1a)
+- npm init [`be67840`](https://github.com/inspect-js/has-tostringtag/commit/be67840ab92ee7adb98bcc65261975543f815fa5)
+- Implementation [`c4914ec`](https://github.com/inspect-js/has-tostringtag/commit/c4914ecc51ddee692c85b471ae0a5d8123030fbf)
+- [meta] use `auto-changelog` [`4aaf768`](https://github.com/inspect-js/has-tostringtag/commit/4aaf76895ae01d7b739f2b19f967ef2372506cd7)
+- Only apps should have lockfiles [`bc4d99e`](https://github.com/inspect-js/has-tostringtag/commit/bc4d99e4bf494afbaa235c5f098df6e642edf724)
+- [meta] add `safe-publish-latest` [`6523c05`](https://github.com/inspect-js/has-tostringtag/commit/6523c05c9b87140f3ae74c9daf91633dd9ff4e1f)
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2021 Inspect JS
+
+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.
@@ -0,0 +1,46 @@
+# has-tostringtag <sup>[![Version Badge][2]][1]</sup>
+
+[![github actions][actions-image]][actions-url]
+[![coverage][codecov-image]][codecov-url]
+[![dependency status][5]][6]
+[![dev dependency status][7]][8]
+[![License][license-image]][license-url]
+[![Downloads][downloads-image]][downloads-url]
+
+[![npm badge][11]][1]
+
+Determine if the JS environment has `Symbol.toStringTag` support. Supports spec, or shams.
+
+## Example
+
+```js
+var hasSymbolToStringTag = require('has-tostringtag');
+
+hasSymbolToStringTag() === true; // if the environment has native Symbol.toStringTag support. Not polyfillable, not forgeable.
+
+var hasSymbolToStringTagKinda = require('has-tostringtag/shams');
+hasSymbolToStringTagKinda() === true; // if the environment has a Symbol.toStringTag sham that mostly follows the spec.
+```
+
+## Supported Symbol shams
+ - get-own-property-symbols [npm](https://www.npmjs.com/package/get-own-property-symbols) | [github](https://github.com/WebReflection/get-own-property-symbols)
+ - core-js [npm](https://www.npmjs.com/package/core-js) | [github](https://github.com/zloirock/core-js)
+
+## Tests
+Simply clone the repo, `npm install`, and run `npm test`
+
+[1]: https://npmjs.org/package/has-tostringtag
+[2]: https://versionbadg.es/inspect-js/has-tostringtag.svg
+[5]: https://david-dm.org/inspect-js/has-tostringtag.svg
+[6]: https://david-dm.org/inspect-js/has-tostringtag
+[7]: https://david-dm.org/inspect-js/has-tostringtag/dev-status.svg
+[8]: https://david-dm.org/inspect-js/has-tostringtag#info=devDependencies
+[11]: https://nodei.co/npm/has-tostringtag.png?downloads=true&stars=true
+[license-image]: https://img.shields.io/npm/l/has-tostringtag.svg
+[license-url]: LICENSE
+[downloads-image]: https://img.shields.io/npm/dm/has-tostringtag.svg
+[downloads-url]: https://npm-stat.com/charts.html?package=has-tostringtag
+[codecov-image]: https://codecov.io/gh/inspect-js/has-tostringtag/branch/main/graphs/badge.svg
+[codecov-url]: https://app.codecov.io/gh/inspect-js/has-tostringtag/
+[actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/inspect-js/has-tostringtag
+[actions-url]: https://github.com/inspect-js/has-tostringtag/actions
@@ -0,0 +1,3 @@
+declare function hasToStringTag(): boolean;
+
+export = hasToStringTag;
@@ -0,0 +1,8 @@
+'use strict';
+
+var hasSymbols = require('has-symbols');
+
+/** @type {import('.')} */
+module.exports = function hasToStringTag() {
+	return hasSymbols() && typeof Symbol.toStringTag === 'symbol';
+};
@@ -0,0 +1,108 @@
+{
+	"name": "has-tostringtag",
+	"version": "1.0.2",
+	"author": {
+		"name": "Jordan Harband",
+		"email": "ljharb@gmail.com",
+		"url": "http://ljharb.codes"
+	},
+	"funding": {
+		"url": "https://github.com/sponsors/ljharb"
+	},
+	"contributors": [
+		{
+			"name": "Jordan Harband",
+			"email": "ljharb@gmail.com",
+			"url": "http://ljharb.codes"
+		}
+	],
+	"description": "Determine if the JS environment has `Symbol.toStringTag` support. Supports spec, or shams.",
+	"license": "MIT",
+	"main": "index.js",
+	"types": "./index.d.ts",
+	"exports": {
+		".": [
+			{
+				"types": "./index.d.ts",
+				"default": "./index.js"
+			},
+			"./index.js"
+		],
+		"./shams": [
+			{
+				"types": "./shams.d.ts",
+				"default": "./shams.js"
+			},
+			"./shams.js"
+		],
+		"./package.json": "./package.json"
+	},
+	"scripts": {
+		"prepack": "npmignore --auto --commentLines=autogenerated",
+		"prepublishOnly": "safe-publish-latest",
+		"prepublish": "not-in-publish || npm run prepublishOnly",
+		"pretest": "npm run --silent lint",
+		"test": "npm run tests-only",
+		"posttest": "aud --production",
+		"tests-only": "npm run test:stock && npm run test:shams",
+		"test:stock": "nyc node test",
+		"test:staging": "nyc node --harmony --es-staging test",
+		"test:shams": "npm run --silent test:shams:getownpropertysymbols && npm run --silent test:shams:corejs",
+		"test:shams:corejs": "nyc node test/shams/core-js.js",
+		"test:shams:getownpropertysymbols": "nyc node test/shams/get-own-property-symbols.js",
+		"lint": "eslint --ext=js,mjs .",
+		"version": "auto-changelog && git add CHANGELOG.md",
+		"postversion": "auto-changelog && git add CHANGELOG.md && git commit --no-edit --amend && git tag -f \"v$(node -e \"console.log(require('./package.json').version)\")\""
+	},
+	"repository": {
+		"type": "git",
+		"url": "git+https://github.com/inspect-js/has-tostringtag.git"
+	},
+	"bugs": {
+		"url": "https://github.com/inspect-js/has-tostringtag/issues"
+	},
+	"homepage": "https://github.com/inspect-js/has-tostringtag#readme",
+	"keywords": [
+		"javascript",
+		"ecmascript",
+		"symbol",
+		"symbols",
+		"tostringtag",
+		"Symbol.toStringTag"
+	],
+	"devDependencies": {
+		"@ljharb/eslint-config": "^21.1.0",
+		"@types/has-symbols": "^1.0.2",
+		"@types/tape": "^5.6.4",
+		"aud": "^2.0.4",
+		"auto-changelog": "^2.4.0",
+		"core-js": "^2.6.12",
+		"eslint": "=8.8.0",
+		"get-own-property-symbols": "^0.9.5",
+		"in-publish": "^2.0.1",
+		"npmignore": "^0.3.1",
+		"nyc": "^10.3.2",
+		"safe-publish-latest": "^2.0.0",
+		"tape": "^5.7.4",
+		"typescript": "next"
+	},
+	"engines": {
+		"node": ">= 0.4"
+	},
+	"auto-changelog": {
+		"output": "CHANGELOG.md",
+		"template": "keepachangelog",
+		"unreleased": false,
+		"commitLimit": false,
+		"backfillLimit": false,
+		"hideCredit": true
+	},
+	"publishConfig": {
+		"ignore": [
+			".github/workflows"
+		]
+	},
+	"dependencies": {
+		"has-symbols": "^1.0.3"
+	}
+}
@@ -0,0 +1,3 @@
+declare function hasToStringTagShams(): boolean;
+
+export = hasToStringTagShams;
@@ -0,0 +1,8 @@
+'use strict';
+
+var hasSymbols = require('has-symbols/shams');
+
+/** @type {import('.')} */
+module.exports = function hasToStringTagShams() {
+	return hasSymbols() && !!Symbol.toStringTag;
+};
@@ -0,0 +1,21 @@
+'use strict';
+
+var test = require('tape');
+var hasSymbolToStringTag = require('../');
+var runSymbolTests = require('./tests');
+
+test('interface', function (t) {
+	t.equal(typeof hasSymbolToStringTag, 'function', 'is a function');
+	t.equal(typeof hasSymbolToStringTag(), 'boolean', 'returns a boolean');
+	t.end();
+});
+
+test('Symbol.toStringTag exists', { skip: !hasSymbolToStringTag() }, function (t) {
+	runSymbolTests(t);
+	t.end();
+});
+
+test('Symbol.toStringTag does not exist', { skip: hasSymbolToStringTag() }, function (t) {
+	t.equal(typeof Symbol === 'undefined' ? 'undefined' : typeof Symbol.toStringTag, 'undefined', 'global Symbol.toStringTag is undefined');
+	t.end();
+});
@@ -0,0 +1,31 @@
+'use strict';
+
+var test = require('tape');
+
+if (typeof Symbol === 'function' && typeof Symbol.toStringTag === 'symbol') {
+	test('has native Symbol.toStringTag support', function (t) {
+		t.equal(typeof Symbol, 'function');
+		t.equal(typeof Symbol.toStringTag, 'symbol');
+		t.end();
+	});
+	// @ts-expect-error CJS has top-level return
+	return;
+}
+
+var hasSymbolToStringTag = require('../../shams');
+
+test('polyfilled Symbols', function (t) {
+	/* eslint-disable global-require */
+	t.equal(hasSymbolToStringTag(), false, 'hasSymbolToStringTag is false before polyfilling');
+	// @ts-expect-error no types defined
+	require('core-js/fn/symbol');
+	// @ts-expect-error no types defined
+	require('core-js/fn/symbol/to-string-tag');
+
+	require('../tests')(t);
+
+	var hasToStringTagAfter = hasSymbolToStringTag();
+	t.equal(hasToStringTagAfter, true, 'hasSymbolToStringTag is true after polyfilling');
+	/* eslint-enable global-require */
+	t.end();
+});
@@ -0,0 +1,30 @@
+'use strict';
+
+var test = require('tape');
+
+if (typeof Symbol === 'function' && typeof Symbol() === 'symbol') {
+	test('has native Symbol support', function (t) {
+		t.equal(typeof Symbol, 'function');
+		t.equal(typeof Symbol(), 'symbol');
+		t.end();
+	});
+	// @ts-expect-error CJS has top-level return
+	return;
+}
+
+var hasSymbolToStringTag = require('../../shams');
+
+test('polyfilled Symbols', function (t) {
+	/* eslint-disable global-require */
+	t.equal(hasSymbolToStringTag(), false, 'hasSymbolToStringTag is false before polyfilling');
+
+	// @ts-expect-error no types defined
+	require('get-own-property-symbols');
+
+	require('../tests')(t);
+
+	var hasToStringTagAfter = hasSymbolToStringTag();
+	t.equal(hasToStringTagAfter, true, 'hasSymbolToStringTag is true after polyfilling');
+	/* eslint-enable global-require */
+	t.end();
+});
@@ -0,0 +1,15 @@
+'use strict';
+
+// eslint-disable-next-line consistent-return
+module.exports = /** @type {(t: import('tape').Test) => void | false} */ function runSymbolTests(t) {
+	t.equal(typeof Symbol, 'function', 'global Symbol is a function');
+	t.ok(Symbol.toStringTag, 'Symbol.toStringTag exists');
+
+	if (typeof Symbol !== 'function' || !Symbol.toStringTag) { return false; }
+
+	/** @type {{ [Symbol.toStringTag]?: 'test'}} */
+	var obj = {};
+	obj[Symbol.toStringTag] = 'test';
+
+	t.equal(Object.prototype.toString.call(obj), '[object test]');
+};
@@ -0,0 +1,49 @@
+{
+  "compilerOptions": {
+    /* Visit https://aka.ms/tsconfig to read more about this file */
+
+    /* Projects */
+
+    /* Language and Environment */
+    "target": "ESNext",                                  /* Set the JavaScript language version for emitted JavaScript and include compatible library declarations. */
+    // "lib": [],                                        /* Specify a set of bundled library declaration files that describe the target runtime environment. */
+    // "noLib": true,                                    /* Disable including any library files, including the default lib.d.ts. */
+    "useDefineForClassFields": true,                     /* Emit ECMAScript-standard-compliant class fields. */
+    // "moduleDetection": "auto",                        /* Control what method is used to detect module-format JS files. */
+
+    /* Modules */
+    "module": "commonjs",                                /* Specify what module code is generated. */
+    // "rootDir": "./",                                  /* Specify the root folder within your source files. */
+    // "moduleResolution": "node10",                     /* Specify how TypeScript looks up a file from a given module specifier. */
+    // "baseUrl": "./",                                  /* Specify the base directory to resolve non-relative module names. */
+    // "paths": {},                                      /* Specify a set of entries that re-map imports to additional lookup locations. */
+    // "rootDirs": [],                                   /* Allow multiple folders to be treated as one when resolving modules. */
+    "typeRoots": ["types"],                              /* Specify multiple folders that act like './node_modules/@types'. */
+    "resolveJsonModule": true,                           /* Enable importing .json files. */
+    // "allowArbitraryExtensions": true,                 /* Enable importing files with any extension, provided a declaration file is present. */
+
+    /* JavaScript Support */
+    "allowJs": true,                                     /* Allow JavaScript files to be a part of your program. Use the 'checkJS' option to get errors from these files. */
+    "checkJs": true,                                     /* Enable error reporting in type-checked JavaScript files. */
+    "maxNodeModuleJsDepth": 0,                           /* Specify the maximum folder depth used for checking JavaScript files from 'node_modules'. Only applicable with 'allowJs'. */
+
+    /* Emit */
+    "declaration": true,                                 /* Generate .d.ts files from TypeScript and JavaScript files in your project. */
+    "declarationMap": true,                              /* Create sourcemaps for d.ts files. */
+    "noEmit": true,                                      /* Disable emitting files from a compilation. */
+
+    /* Interop Constraints */
+    "allowSyntheticDefaultImports": true,                /* Allow 'import x from y' when a module doesn't have a default export. */
+    "esModuleInterop": true,                             /* Emit additional JavaScript to ease support for importing CommonJS modules. This enables 'allowSyntheticDefaultImports' for type compatibility. */
+    "forceConsistentCasingInFileNames": true,            /* Ensure that casing is correct in imports. */
+
+    /* Type Checking */
+    "strict": true,                                      /* Enable all strict type-checking options. */
+
+    /* Completeness */
+    //"skipLibCheck": true                                 /* Skip type checking all .d.ts files. */
+  },
+  "exclude": [
+    "coverage"
+  ]
+}
@@ -0,0 +1,22 @@
+root = true
+
+[*]
+indent_style = tab
+indent_size = 4
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+max_line_length = 150
+
+[CHANGELOG.md]
+indent_style = space
+indent_size = 2
+
+[.github/workflows/*.yml]
+indent_style = off
+indent_size = off
+max_line_length = off
+
+[{CHANGELOG.md,*.json}]
+max_line_length = off
@@ -0,0 +1,12 @@
+{
+	"root": true,
+
+	"extends": "@ljharb",
+
+	"overrides": [
+		{
+			"files": "test-corejs.js",
+			"extends": "@ljharb/eslint-config/tests",
+		},
+	],
+}
@@ -0,0 +1,12 @@
+# These are supported funding model platforms
+
+github: [ljharb]
+patreon: # Replace with a single Patreon username
+open_collective: # Replace with a single Open Collective username
+ko_fi: # Replace with a single Ko-fi username
+tidelift: npm/is-boolean-object
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+otechie: # Replace with a single Otechie username
+custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']
@@ -0,0 +1,10 @@
+{
+	"all": true,
+	"check-coverage": false,
+	"reporter": ["text-summary", "text", "html", "json"],
+	"exclude": [
+		"coverage",
+		"test",
+		"test-corejs.js"
+	]
+}
@@ -0,0 +1,143 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [v1.2.2](https://github.com/inspect-js/is-boolean-object/compare/v1.2.1...v1.2.2) - 2025-02-04
+
+### Fixed
+
+- [Fix] do not be tricked by fake Booleans [`#25`](https://github.com/inspect-js/is-boolean-object/issues/25)
+
+### Commits
+
+- [Dev Deps] update `@arethetypeswrong/cli`, `@ljharb/tsconfig`, `@types/tape`, `core-js` [`a27608b`](https://github.com/inspect-js/is-boolean-object/commit/a27608b83f154875736bb5e77bf1a70da307b64f)
+- [Deps] update `call-bound` [`b19953f`](https://github.com/inspect-js/is-boolean-object/commit/b19953f90f88435a0b0888692f065c959812f710)
+
+## [v1.2.1](https://github.com/inspect-js/is-boolean-object/compare/v1.2.0...v1.2.1) - 2024-12-12
+
+### Commits
+
+- [Refactor] use `call-bound` directly [`bb5aa26`](https://github.com/inspect-js/is-boolean-object/commit/bb5aa266f9da864b59f58f1f61d807268f00e227)
+
+## [v1.2.0](https://github.com/inspect-js/is-boolean-object/compare/v1.1.2...v1.2.0) - 2024-12-01
+
+### Commits
+
+- [actions] reuse common workflows [`380fa25`](https://github.com/inspect-js/is-boolean-object/commit/380fa254d963699ba7e1b7bfaee3cd4c50142f1a)
+- [meta] use `npmignore` to autogenerate an npmignore file [`befa203`](https://github.com/inspect-js/is-boolean-object/commit/befa203ffa0e94c70d5b35aae407ea93e0bbc117)
+- [actions] split out node 10-20, and 20+ [`ca31663`](https://github.com/inspect-js/is-boolean-object/commit/ca31663ef1e4195ffeef125fb337c5e58bf878ca)
+- [New] add types [`6d58609`](https://github.com/inspect-js/is-boolean-object/commit/6d58609867b97b832ff5e73941b4164f0a9a78ec)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `core-js`, `safe-publish-latest`, `tape` [`06cc67e`](https://github.com/inspect-js/is-boolean-object/commit/06cc67eed7647dc9094611f03bd2802fb3695e37)
+- [actions] update codecov uploader [`0722346`](https://github.com/inspect-js/is-boolean-object/commit/0722346b425c46e50864d76507c3d3a97678273b)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `aud`, `auto-changelog`, `tape` [`100acdf`](https://github.com/inspect-js/is-boolean-object/commit/100acdf9405f8496bdc71b7c383ab9e2119560af)
+- [actions] update rebase action to use reusable workflow [`26333ff`](https://github.com/inspect-js/is-boolean-object/commit/26333ffc7bf92b7d751a68721cd7b27f8c59a250)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `aud`, `core-js`, `tape` [`fde97ee`](https://github.com/inspect-js/is-boolean-object/commit/fde97eed23a8caa95beaa6fc710adf9526b99155)
+- [Dev Deps] update `@ljharb/eslint-config`, `auto-changelog`, `core-js`, `npmignore`, `tape` [`f5ed3c8`](https://github.com/inspect-js/is-boolean-object/commit/f5ed3c8b871451b5dac2f11e16ba3e35e5fdf82e)
+- [Deps] update `call-bind`, `has-tostringtag` [`61912e2`](https://github.com/inspect-js/is-boolean-object/commit/61912e211369447287c5cbba952303e1897440bf)
+- [Tests] replace `aud` with `npm audit` [`c6a0db5`](https://github.com/inspect-js/is-boolean-object/commit/c6a0db56cb39bd99255589c13c2dc3dde922c755)
+- [meta] better `eccheck` command [`3a59ec6`](https://github.com/inspect-js/is-boolean-object/commit/3a59ec6a40479dd4d742531042797e2b79acb898)
+- [Dev Deps] add missing peer dep [`c0e10db`](https://github.com/inspect-js/is-boolean-object/commit/c0e10db845b7e7329e6347d9de5fe0190276433c)
+
+## [v1.1.2](https://github.com/inspect-js/is-boolean-object/compare/v1.1.1...v1.1.2) - 2021-08-05
+
+### Commits
+
+- [Refactor] use `has-tostringtag` to behave correctly in the presence of symbol shams [`6d319ea`](https://github.com/inspect-js/is-boolean-object/commit/6d319eac0ba237f7ba440a1fc4b32d007b1b0cf3)
+- [Dev Deps] update `auto-changelog`, `core-js`, `eslint`, `tape` [`4f85bef`](https://github.com/inspect-js/is-boolean-object/commit/4f85bef244f8fdd9ab99db0afe0b8fa00c853709)
+
+## [v1.1.1](https://github.com/inspect-js/is-boolean-object/compare/v1.1.0...v1.1.1) - 2021-05-07
+
+### Commits
+
+- [actions] use `node/install` instead of `node/run`; use `codecov` action [`7201c41`](https://github.com/inspect-js/is-boolean-object/commit/7201c41fc1fd9d64b51716b80fc63d95064a4a59)
+- [Tests] run tests with core-js as well [`9590e61`](https://github.com/inspect-js/is-boolean-object/commit/9590e6135505e2e3f69c6d8785a539fca1b1e594)
+- [meta] do not publish github action workflow files [`341472b`](https://github.com/inspect-js/is-boolean-object/commit/341472bbe9855030c7eda9340ee4284244f0a4ad)
+- [readme] update repo URLs; remove travis badge [`9fdbbc6`](https://github.com/inspect-js/is-boolean-object/commit/9fdbbc64b2a70ee93fcfd95fc6c94c7ec2bbedd4)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `aud`, `tape` [`1cd35c9`](https://github.com/inspect-js/is-boolean-object/commit/1cd35c9b9b0b4af203f20bda0d7fd60798e57f99)
+- [readme] add actions and codecov badges [`03769fe`](https://github.com/inspect-js/is-boolean-object/commit/03769feb1466f03b1345882ca0e4f8cacbbce9ce)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `tape` [`db6598c`](https://github.com/inspect-js/is-boolean-object/commit/db6598c4cabcd0ffd2ba9b4525b53907f8b2ff1f)
+- [Fix] do not use `Object.prototype.toString` when `Symbol.toStringTag` is shammed [`e0b8a9f`](https://github.com/inspect-js/is-boolean-object/commit/e0b8a9f0fc1290a0a29c75967d56bc1c17eb8d2d)
+- [readme] remove defunct testling badge [`986a621`](https://github.com/inspect-js/is-boolean-object/commit/986a6217da7385f7063e1d4e4bf5be2892d00c20)
+- [meta] use `prepublishOnly` script for npm 7+ [`7bb3b29`](https://github.com/inspect-js/is-boolean-object/commit/7bb3b2902008ca07af4185ca98bc41b3222d579f)
+- [Deps] update `call-bind` [`3af6a71`](https://github.com/inspect-js/is-boolean-object/commit/3af6a71e1004c79567630ac9944b9f2cc184ac77)
+- [meta] do not publish corejs test file [`d911f03`](https://github.com/inspect-js/is-boolean-object/commit/d911f0368b6922645d15b9e28f3ed92e1badcef4)
+- [actions] update workflows [`9bb3d90`](https://github.com/inspect-js/is-boolean-object/commit/9bb3d9015f377280324b162a3062d21936707216)
+
+## [v1.1.0](https://github.com/inspect-js/is-boolean-object/compare/v1.0.1...v1.1.0) - 2020-12-05
+
+### Commits
+
+- [Tests] migrate tests to Github Actions [`6cdb652`](https://github.com/inspect-js/is-boolean-object/commit/6cdb652add3c6e44c2f7fe07c5ca4c0d14ddc2c1)
+- [Tests] run `nyc` on all tests [`9a33076`](https://github.com/inspect-js/is-boolean-object/commit/9a33076d14869bf5120a6ca3903bcb9a008cf2e5)
+- [Tests] add .editorconfig [`bb401c0`](https://github.com/inspect-js/is-boolean-object/commit/bb401c084416b010d64e0c5a74465b37addab31f)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `aud`, `auto-changelog`, `tape` [`5cb2405`](https://github.com/inspect-js/is-boolean-object/commit/5cb24052ca84d840e929f05cd1fe6c03b85ec032)
+- [Robustness] use `call-bind` to avoid a dependency on `.call` [`76d87ae`](https://github.com/inspect-js/is-boolean-object/commit/76d87ae74235a9995d39bcf5783c04c744c34520)
+- [actions] add "Allow Edits" workflow [`337206a`](https://github.com/inspect-js/is-boolean-object/commit/337206af74bd7c340bc938ab6dc0535c08490b3d)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `tape` [`11f0481`](https://github.com/inspect-js/is-boolean-object/commit/11f0481efca28a241a35d384e2a302b1bcdc9a37)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `tape` [`b9602c8`](https://github.com/inspect-js/is-boolean-object/commit/b9602c8ca11be138722187c1fb0a5b25a57a4edc)
+- [Dev Deps] update `auto-changelog`, `tape`; add `aud` [`999e9e2`](https://github.com/inspect-js/is-boolean-object/commit/999e9e224d4eec8b20fc9c3431e9ba42caad79c9)
+- [actions] switch Automatic Rebase workflow to `pull_request_target` event [`bbb6728`](https://github.com/inspect-js/is-boolean-object/commit/bbb6728b9410f9d3e2d266523a477127e5e4c16f)
+
+## [v1.0.1](https://github.com/inspect-js/is-boolean-object/compare/v1.0.0...v1.0.1) - 2019-12-18
+
+### Commits
+
+- [Tests] use shared travis-ci configs [`a1778b8`](https://github.com/inspect-js/is-boolean-object/commit/a1778b81ab4fe4479176de854e4e233cc441f183)
+- Update `eslint`; use my personal shared `eslint` config. [`2c42c50`](https://github.com/inspect-js/is-boolean-object/commit/2c42c50a0654044b6c7e2a4ab18227e8c275464b)
+- [Tests] remove `jscs` [`3807025`](https://github.com/inspect-js/is-boolean-object/commit/380702504fabc47fe22f61c4847379023d31a657)
+- [Tests] up to `node` `v8.4`, `v7.10`, `v6.11`, `v5.12`, `v4.8`; improve matrix; newer npm breaks in older node; improve scripts. [`a02b986`](https://github.com/inspect-js/is-boolean-object/commit/a02b98682b285de09e2c5a895627771d6a7f552c)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `is`, `jscs`, `nsp`, `semver`, `tape` [`d9030a9`](https://github.com/inspect-js/is-boolean-object/commit/d9030a99b8e274c76ae5f23f31d9d085a7e25272)
+- Update `eslint`, `nsp` [`a1b6388`](https://github.com/inspect-js/is-boolean-object/commit/a1b6388fabd0de51a02c567953826344ef05890c)
+- [Tests] up to `node` `v10.0`, `v9.11`, `v8.11`, `v6.14`, `v4.9`; use `nvm install-latest-npm` [`17a0fd3`](https://github.com/inspect-js/is-boolean-object/commit/17a0fd391e32635ec3434baca0d062f8abeeb592)
+- [Tests] up to `node` `v12.10`, `v11.15`, `v10.16`, `v8.16`, `v6.17` [`0b1818f`](https://github.com/inspect-js/is-boolean-object/commit/0b1818fdcaebc6133e515dfe3b5a8930b38999b5)
+- [meta] remove unused Makefile and associated utilities [`33dc0ae`](https://github.com/inspect-js/is-boolean-object/commit/33dc0ae35a03e91f81b1bb3db5ba763dacadbfa2)
+- Update `covert`, `jscs`, `eslint`, `semver` [`7e513c1`](https://github.com/inspect-js/is-boolean-object/commit/7e513c12998a651c14f62b3ecfb7215a5cc5ee8f)
+- [Tests] up to `node` `v11.4`, `v10.14`, `v8.14`, `v6.15` [`992b849`](https://github.com/inspect-js/is-boolean-object/commit/992b84933760e0fe6ba2cee74ad7fff507f28128)
+- [meta] add `auto-changelog` [`63d71b8`](https://github.com/inspect-js/is-boolean-object/commit/63d71b8beb9aeb77cab3d2db2cf643f1b8b1a55c)
+- Update `tape`, `eslint`, `semver` [`76aea69`](https://github.com/inspect-js/is-boolean-object/commit/76aea699fb315ac460799182d707c388b4a4e017)
+- Update `tape`, `jscs`, `eslint`, `@ljharb/eslint-config` [`a6cbec0`](https://github.com/inspect-js/is-boolean-object/commit/a6cbec09940b6f2c7cf366526a94c0c4756508f5)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `replace`, `semver`, `tape`; add `safe-publish-latest` [`7cf6bb0`](https://github.com/inspect-js/is-boolean-object/commit/7cf6bb05ba7bac504df680dd9ca625fba6dccb5a)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `safe-publish-latest` [`57d713c`](https://github.com/inspect-js/is-boolean-object/commit/57d713cca2ccbbbf1da1142ee5e8236d12551f76)
+- [actions] add automatic rebasing / merge commit blocking [`f7a2bdb`](https://github.com/inspect-js/is-boolean-object/commit/f7a2bdb905e07d75c65593359f81bfeda9fe9826)
+- [meta] create FUNDING.yml [`9765e73`](https://github.com/inspect-js/is-boolean-object/commit/9765e738cccdd5ff6c89b21324119a2bf4064fbd)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `is`, `replace`, `semver`, `tape` [`5c16b56`](https://github.com/inspect-js/is-boolean-object/commit/5c16b56a5a2d36c6a70c1bd396b3a6c931f655db)
+- [Dev Deps] update `tape`, `jscs`, `eslint`, `@ljharb/eslint-config` [`5717aad`](https://github.com/inspect-js/is-boolean-object/commit/5717aadd8b0e8c76ccb194d1845ad8cc120f29c6)
+- [Dev Deps] update `is`, `jscs`, `nsp`, `eslint`, `@ljharb/eslint-config`, `semver` [`80b924d`](https://github.com/inspect-js/is-boolean-object/commit/80b924dd270188e1e928f4141078bee14d810e9b)
+- [Dev Deps] update `jscs` [`2e5479e`](https://github.com/inspect-js/is-boolean-object/commit/2e5479e56b6d33288582cfe8c254ca081e79500c)
+- Test up to `io.js` `v2.2` [`93379a4`](https://github.com/inspect-js/is-boolean-object/commit/93379a4b48ba719113006ab08bbe6679c8a27293)
+- [Tests] remove `nsp`; use `npm audit`; allow to fail for now [`36ae30a`](https://github.com/inspect-js/is-boolean-object/commit/36ae30acffe4a892ea0882a793b8a90f09d08fdf)
+- [Tests] up to `io.js` `v3.3`, `node` `v4.1` [`ef76976`](https://github.com/inspect-js/is-boolean-object/commit/ef76976db22f2867fca2ee377fdbc9da81f0d142)
+- [Tests] use `npx aud` instead of `nsp` or `npm audit` with hoops [`a1182bd`](https://github.com/inspect-js/is-boolean-object/commit/a1182bd99e5d31e113107241f0d697e71b27bf7b)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `covert`, `tape` [`4f79b47`](https://github.com/inspect-js/is-boolean-object/commit/4f79b474f0643fd2c9dbc863949a61cf01255b6f)
+- [Tests] up to `node` `v10.3` [`5e96464`](https://github.com/inspect-js/is-boolean-object/commit/5e96464fc08eacc45f5f58fe7800ddbc45e40cea)
+- [Dev Deps] update `eslint`, `nsp`, `semver`, `tape` [`e1eb3fa`](https://github.com/inspect-js/is-boolean-object/commit/e1eb3fad8bad65140db3bd2381bb3bea6a9c6242)
+- Only apps should have lockfiles. [`c7f301f`](https://github.com/inspect-js/is-boolean-object/commit/c7f301ff368f9e04f7f64a2ce9b6ae1aec803e69)
+- [meta] add `funding` field [`fad0366`](https://github.com/inspect-js/is-boolean-object/commit/fad03662becea5db7cef29d816d173ad771be86a)
+- [Dev Deps] update `eslint`, `@ljharb/eslint-config` [`80d39d9`](https://github.com/inspect-js/is-boolean-object/commit/80d39d90205d3bb564acb80b0625e90c267347fd)
+- [Tests] use `eclint` instead of `editorconfig-tools` [`980e91b`](https://github.com/inspect-js/is-boolean-object/commit/980e91b186a728f77366ba16b7bebc813b9cc3b0)
+- [Dev Deps] Update `tape`, `eslint` [`9960830`](https://github.com/inspect-js/is-boolean-object/commit/9960830876a3672686c569fde3d43bb7983955f1)
+- Test up to `io.js` `v3.0` [`a3c3cd0`](https://github.com/inspect-js/is-boolean-object/commit/a3c3cd087d7fcefbf4f3525c05f4cee3b6e5b0ef)
+- [Dev Deps] update `tape` [`217fbd6`](https://github.com/inspect-js/is-boolean-object/commit/217fbd6bb2989f9304ad95cd49697da7fe03b8d5)
+- [Tests] only audit prod deps [`89284ee`](https://github.com/inspect-js/is-boolean-object/commit/89284ee17dce1d044df0ca9e006072f25742bbaf)
+- [Performance] only use toStringTag code path when the value has that property [`2863bc5`](https://github.com/inspect-js/is-boolean-object/commit/2863bc5b72680f05ace8e66fddcf48966b942d55)
+- [Dev Deps] update `replace` [`53e72a5`](https://github.com/inspect-js/is-boolean-object/commit/53e72a5ceca5b3a82e6407829f9227df9df6d329)
+- [Enhancement] slight optimization for `null` [`a90a3c4`](https://github.com/inspect-js/is-boolean-object/commit/a90a3c4464d0300e23384d96fb4281b55b7fd723)
+- [Dev Deps] update `tape` [`9377bd5`](https://github.com/inspect-js/is-boolean-object/commit/9377bd5110e99d8ec550f24ef3f6ead62a8f1f50)
+- Switch from vb.teelaun.ch to versionbadg.es for the npm version badge SVG. [`3085530`](https://github.com/inspect-js/is-boolean-object/commit/30855304841854f79e406372f524efe4bc7d8c04)
+- Test on `io.js` `v2.4` [`8af335c`](https://github.com/inspect-js/is-boolean-object/commit/8af335ca82a0eeba4a0a593775e4caf744834ec4)
+- Test on `io.js` `v2.3` [`1eb3424`](https://github.com/inspect-js/is-boolean-object/commit/1eb3424bef528551f5c99a754281a51d92e40ab1)
+
+## v1.0.0 - 2015-04-28
+
+### Commits
+
+- Dotfiles [`6b9b998`](https://github.com/inspect-js/is-boolean-object/commit/6b9b998bb238a32d4829c9f9bf274e5ca15023ee)
+- `make release` [`d5e50b3`](https://github.com/inspect-js/is-boolean-object/commit/d5e50b33a3cd8d8abe7de8ae36e2944c24ce76ba)
+- package.json [`117676a`](https://github.com/inspect-js/is-boolean-object/commit/117676a48609e636d4257c1b35c695ff20939211)
+- Read me [`ef327a7`](https://github.com/inspect-js/is-boolean-object/commit/ef327a74c7f73e64cfa3c20a9620ef7accf8b762)
+- Initial commit [`2346886`](https://github.com/inspect-js/is-boolean-object/commit/2346886252b9637c1af6851a3fc2cbc98bc986aa)
+- Tests [`67211f8`](https://github.com/inspect-js/is-boolean-object/commit/67211f8bff1a49e5df219935765b83573c097353)
+- Implementation [`2d88bd6`](https://github.com/inspect-js/is-boolean-object/commit/2d88bd6e1ef0f07f5a639775eb89f3b78e12eb65)
@@ -0,0 +1,22 @@
+The MIT License (MIT)
+
+Copyright (c) 2015 Jordan Harband
+
+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.
+
@@ -0,0 +1,57 @@
+# is-boolean-object <sup>[![Version Badge][2]][1]</sup>
+
+[![github actions][actions-image]][actions-url]
+[![coverage][codecov-image]][codecov-url]
+[![dependency status][5]][6]
+[![dev dependency status][7]][8]
+[![License][license-image]][license-url]
+[![Downloads][downloads-image]][downloads-url]
+
+[![npm badge][11]][1]
+
+Is this value a JS Boolean? This module works cross-realm/iframe, and despite ES6 @@toStringTag.
+
+## Example
+
+```js
+var isBoolean = require('is-boolean-object');
+var assert = require('assert');
+
+assert.notOk(isBoolean(undefined));
+assert.notOk(isBoolean(null));
+assert.notOk(isBoolean('foo'));
+assert.notOk(isBoolean(function () {}));
+assert.notOk(isBoolean([]));
+assert.notOk(isBoolean({}));
+assert.notOk(isBoolean(/a/g));
+assert.notOk(isBoolean(new RegExp('a', 'g')));
+assert.notOk(isBoolean(new Date()));
+assert.notOk(isBoolean(42));
+assert.notOk(isBoolean(NaN));
+assert.notOk(isBoolean(Infinity));
+
+assert.ok(isBoolean(new Boolean(42)));
+assert.ok(isBoolean(false));
+assert.ok(isBoolean(Object(false)));
+assert.ok(isBoolean(true));
+assert.ok(isBoolean(Object(true)));
+```
+
+## Tests
+Simply clone the repo, `npm install`, and run `npm test`
+
+[1]: https://npmjs.org/package/is-boolean-object
+[2]: https://versionbadg.es/inspect-js/is-boolean-object.svg
+[5]: https://david-dm.org/inspect-js/is-boolean-object.svg
+[6]: https://david-dm.org/inspect-js/is-boolean-object
+[7]: https://david-dm.org/inspect-js/is-boolean-object/dev-status.svg
+[8]: https://david-dm.org/inspect-js/is-boolean-object#info=devDependencies
+[11]: https://nodei.co/npm/is-boolean-object.png?downloads=true&stars=true
+[license-image]: https://img.shields.io/npm/l/is-boolean-object.svg
+[license-url]: LICENSE
+[downloads-image]: https://img.shields.io/npm/dm/is-boolean-object.svg
+[downloads-url]: https://npm-stat.com/charts.html?package=is-boolean-object
+[codecov-image]: https://codecov.io/gh/inspect-js/is-boolean-object/branch/main/graphs/badge.svg
+[codecov-url]: https://app.codecov.io/gh/inspect-js/is-boolean-object/
+[actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/inspect-js/is-boolean-object
+[actions-url]: https://github.com/inspect-js/is-boolean-object/actions
@@ -0,0 +1,3 @@
+declare function isBooleanObject(value: unknown): value is boolean | Boolean;
+
+export = isBooleanObject;
@@ -0,0 +1,28 @@
+'use strict';
+
+var callBound = require('call-bound');
+var $boolToStr = callBound('Boolean.prototype.toString');
+var $toString = callBound('Object.prototype.toString');
+
+/** @type {import('.')} */
+var tryBooleanObject = function booleanBrandCheck(value) {
+	try {
+		$boolToStr(value);
+		return true;
+	} catch (e) {
+		return false;
+	}
+};
+var boolClass = '[object Boolean]';
+var hasToStringTag = require('has-tostringtag/shams')();
+
+/** @type {import('.')} */
+module.exports = function isBoolean(value) {
+	if (typeof value === 'boolean') {
+		return true;
+	}
+	if (value === null || typeof value !== 'object') {
+		return false;
+	}
+	return hasToStringTag ? tryBooleanObject(value) : $toString(value) === boolClass;
+};
@@ -0,0 +1,100 @@
+{
+	"name": "is-boolean-object",
+	"version": "1.2.2",
+	"author": "Jordan Harband <ljharb@gmail.com>",
+	"funding": {
+		"url": "https://github.com/sponsors/ljharb"
+	},
+	"description": "Is this value a JS Boolean? This module works cross-realm/iframe, and despite ES6 @@toStringTag.",
+	"license": "MIT",
+	"main": "index.js",
+	"scripts": {
+		"prepack": "npmignore --auto --commentLines=autogenerated",
+		"prepublishOnly": "safe-publish-latest",
+		"prepublish": "not-in-publish || npm run prepublishOnly",
+		"pretest": "npm run lint",
+		"test": "npm run tests-only && npm run test:harmony && npm run test:corejs",
+		"tests-only": "nyc tape 'test/**/*.js'",
+		"test:harmony": "node --harmony --es-staging test",
+		"test:corejs": "nyc tape test-corejs.js",
+		"posttest": "npx npm@'>=10.2' audit --production",
+		"prelint": "eclint check $(git ls-files | xargs find 2> /dev/null | grep -vE 'node_modules|\\.git')",
+		"lint": "eslint --ext=js,mjs .",
+		"postlint": "tsc -p . && attw -P",
+		"version": "auto-changelog && git add CHANGELOG.md",
+		"postversion": "auto-changelog && git add CHANGELOG.md && git commit --no-edit --amend && git tag -f \"v$(node -e \"console.log(require('./package.json').version)\")\""
+	},
+	"repository": {
+		"type": "git",
+		"url": "git://github.com/inspect-js/is-boolean-object.git"
+	},
+	"keywords": [
+		"Boolean",
+		"ES6",
+		"toStringTag",
+		"@@toStringTag",
+		"Boolean object",
+		"true",
+		"false",
+		"is-boolean"
+	],
+	"dependencies": {
+		"call-bound": "^1.0.3",
+		"has-tostringtag": "^1.0.2"
+	},
+	"devDependencies": {
+		"@arethetypeswrong/cli": "^0.17.3",
+		"@ljharb/eslint-config": "^21.1.1",
+		"@ljharb/tsconfig": "^0.2.3",
+		"@types/core-js": "^2.5.8",
+		"@types/object-inspect": "^1.13.0",
+		"@types/tape": "^5.8.1",
+		"auto-changelog": "^2.5.0",
+		"core-js": "^3.40.0",
+		"eclint": "^2.8.1",
+		"encoding": "^0.1.13",
+		"eslint": "=8.8.0",
+		"in-publish": "^2.0.1",
+		"npmignore": "^0.3.1",
+		"nyc": "^10.3.2",
+		"object-inspect": "^1.13.4",
+		"safe-publish-latest": "^2.0.0",
+		"tape": "^5.9.0",
+		"typescript": "next"
+	},
+	"testling": {
+		"files": "test.js",
+		"browsers": [
+			"iexplore/6.0..latest",
+			"firefox/3.0..6.0",
+			"firefox/15.0..latest",
+			"firefox/nightly",
+			"chrome/4.0..10.0",
+			"chrome/20.0..latest",
+			"chrome/canary",
+			"opera/10.0..latest",
+			"opera/next",
+			"safari/4.0..latest",
+			"ipad/6.0..latest",
+			"iphone/6.0..latest",
+			"android-browser/4.2"
+		]
+	},
+	"engines": {
+		"node": ">= 0.4"
+	},
+	"auto-changelog": {
+		"output": "CHANGELOG.md",
+		"template": "keepachangelog",
+		"unreleased": false,
+		"commitLimit": false,
+		"backfillLimit": false,
+		"hideCredit": true
+	},
+	"publishConfig": {
+		"ignore": [
+			".github/workflows",
+			"test-corejs.js"
+		]
+	}
+}
@@ -0,0 +1,73 @@
+'use strict';
+
+var test = require('tape');
+var hasToStringTag = require('has-tostringtag/shams')();
+var inspect = require('object-inspect');
+
+var isBoolean = require('../');
+
+test('not Booleans', function (t) {
+	t.test('primitives', function (st) {
+		// @ts-expect-error
+		st.notOk(isBoolean(), 'undefined is not Boolean');
+		st.notOk(isBoolean(null), 'null is not Boolean');
+		st.notOk(isBoolean(0), '0 is not Boolean');
+		st.notOk(isBoolean(NaN), 'NaN is not Boolean');
+		st.notOk(isBoolean(Infinity), 'Infinity is not Boolean');
+		st.notOk(isBoolean('foo'), 'string is not Boolean');
+		st.end();
+	});
+
+	t.test('objects', function (st) {
+		st.notOk(isBoolean(Object(42)), 'number object is not Boolean');
+		st.notOk(isBoolean([]), 'array is not Boolean');
+		st.notOk(isBoolean({}), 'object is not Boolean');
+		st.notOk(isBoolean(function () {}), 'function is not Boolean');
+		st.notOk(isBoolean(/a/g), 'regex literal is not Boolean');
+		st.notOk(isBoolean(new RegExp('a', 'g')), 'regex object is not Boolean');
+		st.notOk(isBoolean(new Date()), 'new Date() is not Boolean');
+		st.end();
+	});
+
+	t.end();
+});
+
+test('@@toStringTag', { skip: !hasToStringTag }, function (t) {
+	/** @type {{ toString(): unknown; valueOf(): unknown; [Symbol.toStringTag]?: string; }} */
+	var fakeBoolean = {
+		toString: function () { return 'true'; },
+		valueOf: function () { return true; }
+	};
+	fakeBoolean[Symbol.toStringTag] = 'Boolean';
+	t.notOk(isBoolean(fakeBoolean), 'fake Boolean with @@toStringTag "Boolean" is not Boolean');
+	t.end();
+});
+
+test('Booleans', function (t) {
+	t.ok(isBoolean(true), 'true is Boolean');
+	t.ok(isBoolean(false), 'false is Boolean');
+	t.ok(isBoolean(Object(true)), 'Object(true) is Boolean');
+	t.ok(isBoolean(Object(false)), 'Object(false) is Boolean');
+	t.end();
+});
+
+test('Proxy', { skip: typeof Proxy !== 'function' || !hasToStringTag }, function (t) {
+	/** @type {Record<PropertyKey, unknown>} */
+	var target = {};
+	target[Symbol.toStringTag] = 'Boolean';
+	var fake = new Proxy(target, { has: function () { return false; } });
+
+	t.equal(
+		isBoolean(target),
+		false,
+		inspect(target) + ' is not a Boolean'
+	);
+
+	t.equal(
+		isBoolean(fake),
+		false,
+		inspect(fake) + ' is not a Boolean'
+	);
+
+	t.end();
+});
@@ -0,0 +1,9 @@
+{
+	"extends": "@ljharb/tsconfig",
+	"compilerOptions": {
+		"target": "ES2021",
+	},
+	"exclude": [
+		"coverage"
+	]
+}