Get and robustly cache all JS language-level intrinsics at first require time. 

Get and robustly cache all JS language-level intrinsics at first require time

ljharb

get-intrinsic

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).

## [v1.2.4](https://github.com/ljharb/get-intrinsic/compare/v1.2.3...v1.2.4) - 2024-02-05

- [Refactor] use all 7 &lt;+ ES6 Errors from `es-errors` [`bcac811`](https://github.com/ljharb/get-intrinsic/commit/bcac811abdc1c982e12abf848a410d6aae148d14)

## [v1.2.3](https://github.com/ljharb/get-intrinsic/compare/v1.2.2...v1.2.3) - 2024-02-03

- [Refactor] use `es-errors`, so things that only need those do not need `get-intrinsic` [`f11db9c`](https://github.com/ljharb/get-intrinsic/commit/f11db9c4fb97d87bbd53d3c73ac6b3db3613ad3b)

- [Dev Deps] update `aud`, `es-abstract`, `mock-property`, `npmignore` [`b7ac7d1`](https://github.com/ljharb/get-intrinsic/commit/b7ac7d1616fefb03877b1aed0c8f8d61aad32b6c)

- [meta] simplify `exports` [`faa0cc6`](https://github.com/ljharb/get-intrinsic/commit/faa0cc618e2830ffb51a8202490b0c215d965cbc)

- [meta] add missing `engines.node` [`774dd0b`](https://github.com/ljharb/get-intrinsic/commit/774dd0b3e8f741c3f05a6322d124d6087f146af1)

- [Dev Deps] update `tape` [`5828e8e`](https://github.com/ljharb/get-intrinsic/commit/5828e8e4a04e69312e87a36c0ea39428a7a4c3d8)

- [Robustness] use null objects for lookups [`eb9a11f`](https://github.com/ljharb/get-intrinsic/commit/eb9a11fa9eb3e13b193fcc05a7fb814341b1a7b7)

- [meta] add `sideEffects` flag [`89bcc7a`](https://github.com/ljharb/get-intrinsic/commit/89bcc7a42e19bf07b7c21e3094d5ab177109e6d2)

## [v1.2.2](https://github.com/ljharb/get-intrinsic/compare/v1.2.1...v1.2.2) - 2023-10-20

- [Dev Deps] update `@ljharb/eslint-config`, `aud`, `call-bind`, `es-abstract`, `mock-property`, `object-inspect`, `tape` [`f51bcf2`](https://github.com/ljharb/get-intrinsic/commit/f51bcf26412d58d17ce17c91c9afd0ad271f0762)

- [Refactor] use `hasown` instead of `has` [`18d14b7`](https://github.com/ljharb/get-intrinsic/commit/18d14b799bea6b5765e1cec91890830cbcdb0587)

- [Deps] update `function-bind` [`6e109c8`](https://github.com/ljharb/get-intrinsic/commit/6e109c81e03804cc5e7824fb64353cdc3d8ee2c7)

## [v1.2.1](https://github.com/ljharb/get-intrinsic/compare/v1.2.0...v1.2.1) - 2023-05-13

- [Fix] avoid a crash in envs without `__proto__` [`7bad8d0`](https://github.com/ljharb/get-intrinsic/commit/7bad8d061bf8721733b58b73a2565af2b6756b64)

- [Dev Deps] update `es-abstract` [`c60e6b7`](https://github.com/ljharb/get-intrinsic/commit/c60e6b7b4cf9660c7f27ed970970fd55fac48dc5)

## [v1.2.0](https://github.com/ljharb/get-intrinsic/compare/v1.1.3...v1.2.0) - 2023-01-19

- [actions] update checkout action [`ca6b12f`](https://github.com/ljharb/get-intrinsic/commit/ca6b12f31eaacea4ea3b055e744cd61623385ffb)

- [Dev Deps] update `@ljharb/eslint-config`, `es-abstract`, `object-inspect`, `tape` [`41a3727`](https://github.com/ljharb/get-intrinsic/commit/41a3727d0026fa04273ae216a5f8e12eefd72da8)

- [Fix] ensure `Error.prototype` is undeniable [`c511e97`](https://github.com/ljharb/get-intrinsic/commit/c511e97ae99c764c4524b540dee7a70757af8da3)

- [Dev Deps] update `aud`, `es-abstract`, `tape` [`1bef8a8`](https://github.com/ljharb/get-intrinsic/commit/1bef8a8fd439ebb80863199b6189199e0851ac67)

- [Dev Deps] update `aud`, `es-abstract` [`0d41f16`](https://github.com/ljharb/get-intrinsic/commit/0d41f16bcd500bc28b7bfc98043ebf61ea081c26)

- [New] add `BigInt64Array` and `BigUint64Array` [`a6cca25`](https://github.com/ljharb/get-intrinsic/commit/a6cca25f29635889b7e9bd669baf9e04be90e48c)

- [Tests] use `gopd` [`ecf7722`](https://github.com/ljharb/get-intrinsic/commit/ecf7722240d15cfd16edda06acf63359c10fb9bd)

## [v1.1.3](https://github.com/ljharb/get-intrinsic/compare/v1.1.2...v1.1.3) - 2022-09-12

- [Dev Deps] update `es-abstract`, `es-value-fixtures`, `tape` [`07ff291`](https://github.com/ljharb/get-intrinsic/commit/07ff291816406ebe5a12d7f16965bde0942dd688)

- [Fix] properly check for % signs [`50ac176`](https://github.com/ljharb/get-intrinsic/commit/50ac1760fe99c227e64eabde76e9c0e44cd881b5)

## [v1.1.2](https://github.com/ljharb/get-intrinsic/compare/v1.1.1...v1.1.2) - 2022-06-08

- [Fix] properly validate against extra % signs [`#16`](https://github.com/ljharb/get-intrinsic/issues/16)

- [actions] reuse common workflows [`0972547`](https://github.com/ljharb/get-intrinsic/commit/0972547efd0abc863fe4c445a6ca7eb4f8c6901d)

- [meta] use `npmignore` to autogenerate an npmignore file [`5ba0b51`](https://github.com/ljharb/get-intrinsic/commit/5ba0b51d8d8d4f1c31d426d74abc0770fd106bad)

- [actions] use `node/install` instead of `node/run`; use `codecov` action [`c364492`](https://github.com/ljharb/get-intrinsic/commit/c364492af4af51333e6f81c0bf21fd3d602c3661)

- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `aud`, `auto-changelog`, `es-abstract`, `object-inspect`, `tape` [`dc04dad`](https://github.com/ljharb/get-intrinsic/commit/dc04dad86f6e5608775a2640cb0db5927ae29ed9)

- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `es-abstract`, `object-inspect`, `safe-publish-latest`, `tape` [`1c14059`](https://github.com/ljharb/get-intrinsic/commit/1c1405984e86dd2dc9366c15d8a0294a96a146a5)

- [Tests] use `mock-property` [`b396ef0`](https://github.com/ljharb/get-intrinsic/commit/b396ef05bb73b1d699811abd64b0d9b97997fdda)

- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `aud`, `auto-changelog`, `object-inspect`, `tape` [`c2c758d`](https://github.com/ljharb/get-intrinsic/commit/c2c758d3b90af4fef0a76910d8d3c292ec8d1d3e)

- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `aud`, `es-abstract`, `es-value-fixtures`, `object-inspect`, `tape` [`29e3c09`](https://github.com/ljharb/get-intrinsic/commit/29e3c091c2bf3e17099969847e8729d0e46896de)

- [actions] update codecov uploader [`8cbc141`](https://github.com/ljharb/get-intrinsic/commit/8cbc1418940d7a8941f3a7985cbc4ac095c5e13d)

- [Dev Deps] update `@ljharb/eslint-config`, `es-abstract`, `es-value-fixtures`, `object-inspect`, `tape` [`10b6f5c`](https://github.com/ljharb/get-intrinsic/commit/10b6f5c02593fb3680c581d696ac124e30652932)

- [readme] add github actions/codecov badges [`4e25400`](https://github.com/ljharb/get-intrinsic/commit/4e25400d9f51ae9eb059cbe22d9144e70ea214e8)

- [Tests] use `for-each` instead of `foreach` [`c05b957`](https://github.com/ljharb/get-intrinsic/commit/c05b957ad9a7bc7721af7cc9e9be1edbfe057496)

- [Dev Deps] update `es-abstract` [`29b05ae`](https://github.com/ljharb/get-intrinsic/commit/29b05aec3e7330e9ad0b8e0f685a9112c20cdd97)

- [meta] use `prepublishOnly` script for npm 7+ [`95c285d`](https://github.com/ljharb/get-intrinsic/commit/95c285da810516057d3bbfa871176031af38f05d)

- [Deps] update `has-symbols` [`593cb4f`](https://github.com/ljharb/get-intrinsic/commit/593cb4fb38e7922e40e42c183f45274b636424cd)

- [readme] fix repo URLs [`1c8305b`](https://github.com/ljharb/get-intrinsic/commit/1c8305b5365827c9b6fc785434aac0e1328ff2f5)

- [Deps] update `has-symbols` [`c7138b6`](https://github.com/ljharb/get-intrinsic/commit/c7138b6c6d73132d859471fb8c13304e1e7c8b20)

- [Dev Deps] remove unused `has-bigints` [`bd63aff`](https://github.com/ljharb/get-intrinsic/commit/bd63aff6ad8f3a986c557fcda2914187bdaab359)

## [v1.1.1](https://github.com/ljharb/get-intrinsic/compare/v1.1.0...v1.1.1) - 2021-02-03

- [meta] export `./package.json` [`#9`](https://github.com/ljharb/get-intrinsic/issues/9)

- [readme] flesh out the readme; use `evalmd` [`d12f12c`](https://github.com/ljharb/get-intrinsic/commit/d12f12c15345a0a0772cc65a7c64369529abd614)

- [eslint] set up proper globals config [`5a8c098`](https://github.com/ljharb/get-intrinsic/commit/5a8c0984e3319d1ac0e64b102f8ec18b64e79f36)

- [Dev Deps] update `eslint` [`7b9a5c0`](https://github.com/ljharb/get-intrinsic/commit/7b9a5c0d31a90ca1a1234181c74988fb046701cd)

## [v1.1.0](https://github.com/ljharb/get-intrinsic/compare/v1.0.2...v1.1.0) - 2021-01-25

- [Refactor] delay `Function` eval until syntax-derived values are requested [`#3`](https://github.com/ljharb/get-intrinsic/issues/3)

- [Tests] migrate tests to Github Actions [`2ab762b`](https://github.com/ljharb/get-intrinsic/commit/2ab762b48164aea8af37a40ba105bbc8246ab8c4)

- [meta] do not publish github action workflow files [`5e7108e`](https://github.com/ljharb/get-intrinsic/commit/5e7108e4768b244d48d9567ba4f8a6cab9c65b8e)

- [Tests] add some coverage [`01ac7a8`](https://github.com/ljharb/get-intrinsic/commit/01ac7a87ac29738567e8524cd8c9e026b1fa8cb3)

- [Dev Deps] update `eslint`, `@ljharb/eslint-config`, `call-bind`, `es-abstract`, `tape`; add `call-bind` [`911b672`](https://github.com/ljharb/get-intrinsic/commit/911b672fbffae433a96924c6ce013585e425f4b7)

- [Refactor] rearrange evalled constructors a bit [`7e7e4bf`](https://github.com/ljharb/get-intrinsic/commit/7e7e4bf583f3799c8ac1c6c5e10d2cb553957347)

- [meta] add Automatic Rebase and Require Allow Edits workflows [`0199968`](https://github.com/ljharb/get-intrinsic/commit/01999687a263ffce0a3cb011dfbcb761754aedbc)

## [v1.0.2](https://github.com/ljharb/get-intrinsic/compare/v1.0.1...v1.0.2) - 2020-12-17

var $EvalError = require('es-errors/eval');

var $RangeError = require('es-errors/range');

var $ReferenceError = require('es-errors/ref');

var $SyntaxError = require('es-errors/syntax');

var $TypeError = require('es-errors/type');

var $URIError = require('es-errors/uri');

// eslint-disable-next-line consistent-return

var getEvalledConstructor = function (expressionSyntax) {

		return $Function('"use strict"; return (' + expressionSyntax + ').constructor;')();

var $gOPD = Object.getOwnPropertyDescriptor;

		$gOPD = null; // this is IE 8, which has a broken gOPD

			// eslint-disable-next-line no-unused-expressions, no-caller, no-restricted-properties

			arguments.callee; // IE 8 does not throw here

				// IE 8 throws on Object.getOwnPropertyDescriptor(arguments, '')

				return $gOPD(arguments, 'callee').get;

var hasSymbols = require('has-symbols')();

var getProto = Object.getPrototypeOf || (

		? function (x) { return x.__proto__; } // eslint-disable-line no-proto

var TypedArray = typeof Uint8Array === 'undefined' || !getProto ? undefined : getProto(Uint8Array);

	'%AggregateError%': typeof AggregateError === 'undefined' ? undefined : AggregateError,

	'%ArrayBuffer%': typeof ArrayBuffer === 'undefined' ? undefined : ArrayBuffer,

	'%ArrayIteratorPrototype%': hasSymbols && getProto ? getProto([][Symbol.iterator]()) : undefined,

	'%AsyncFromSyncIteratorPrototype%': undefined,

	'%Atomics%': typeof Atomics === 'undefined' ? undefined : Atomics,

	'%BigInt%': typeof BigInt === 'undefined' ? undefined : BigInt,

	'%BigInt64Array%': typeof BigInt64Array === 'undefined' ? undefined : BigInt64Array,

	'%BigUint64Array%': typeof BigUint64Array === 'undefined' ? undefined : BigUint64Array,

	'%DataView%': typeof DataView === 'undefined' ? undefined : DataView,

	'%decodeURIComponent%': decodeURIComponent,

	'%encodeURIComponent%': encodeURIComponent,

	'%eval%': eval, // eslint-disable-line no-eval

	'%Float32Array%': typeof Float32Array === 'undefined' ? undefined : Float32Array,

	'%Float64Array%': typeof Float64Array === 'undefined' ? undefined : Float64Array,

	'%FinalizationRegistry%': typeof FinalizationRegistry === 'undefined' ? undefined : FinalizationRegistry,

	'%Int8Array%': typeof Int8Array === 'undefined' ? undefined : Int8Array,

	'%Int16Array%': typeof Int16Array === 'undefined' ? undefined : Int16Array,

	'%Int32Array%': typeof Int32Array === 'undefined' ? undefined : Int32Array,

	'%IteratorPrototype%': hasSymbols && getProto ? getProto(getProto([][Symbol.iterator]())) : undefined,

	'%JSON%': typeof JSON === 'object' ? JSON : undefined,

	'%Map%': typeof Map === 'undefined' ? undefined : Map,

	'%MapIteratorPrototype%': typeof Map === 'undefined' || !hasSymbols || !getProto ? undefined : getProto(new Map()[Symbol.iterator]()),

	'%Promise%': typeof Promise === 'undefined' ? undefined : Promise,

	'%Proxy%': typeof Proxy === 'undefined' ? undefined : Proxy,

	'%Reflect%': typeof Reflect === 'undefined' ? undefined : Reflect,

	'%Set%': typeof Set === 'undefined' ? undefined : Set,

	'%SetIteratorPrototype%': typeof Set === 'undefined' || !hasSymbols || !getProto ? undefined : getProto(new Set()[Symbol.iterator]()),

	'%SharedArrayBuffer%': typeof SharedArrayBuffer === 'undefined' ? undefined : SharedArrayBuffer,

	'%StringIteratorPrototype%': hasSymbols && getProto ? getProto(''[Symbol.iterator]()) : undefined,

	'%Symbol%': hasSymbols ? Symbol : undefined,

	'%Uint8Array%': typeof Uint8Array === 'undefined' ? undefined : Uint8Array,

	'%Uint8ClampedArray%': typeof Uint8ClampedArray === 'undefined' ? undefined : Uint8ClampedArray,

	'%Uint16Array%': typeof Uint16Array === 'undefined' ? undefined : Uint16Array,

	'%Uint32Array%': typeof Uint32Array === 'undefined' ? undefined : Uint32Array,

	'%WeakMap%': typeof WeakMap === 'undefined' ? undefined : WeakMap,

	'%WeakRef%': typeof WeakRef === 'undefined' ? undefined : WeakRef,

	'%WeakSet%': typeof WeakSet === 'undefined' ? undefined : WeakSet

		null.error; // eslint-disable-line no-unused-expressions

		// https://github.com/tc39/proposal-shadowrealm/pull/384#issuecomment-1364264229

		var errorProto = getProto(getProto(e));

		INTRINSICS['%Error.prototype%'] = errorProto;

		value = getEvalledConstructor('async function () {}');

	} else if (name === '%GeneratorFunction%') {

		value = getEvalledConstructor('function* () {}');

	} else if (name === '%AsyncGeneratorFunction%') {

		value = getEvalledConstructor('async function* () {}');

	} else if (name === '%AsyncGenerator%') {

		var fn = doEval('%AsyncGeneratorFunction%');

	} else if (name === '%AsyncIteratorPrototype%') {

	'%ArrayBufferPrototype%': ['ArrayBuffer', 'prototype'],

	'%ArrayPrototype%': ['Array', 'prototype'],

	'%ArrayProto_entries%': ['Array', 'prototype', 'entries'],

	'%ArrayProto_forEach%': ['Array', 'prototype', 'forEach'],

	'%ArrayProto_keys%': ['Array', 'prototype', 'keys'],

	'%ArrayProto_values%': ['Array', 'prototype', 'values'],

	'%AsyncFunctionPrototype%': ['AsyncFunction', 'prototype'],

	'%AsyncGenerator%': ['AsyncGeneratorFunction', 'prototype'],

	'%AsyncGeneratorPrototype%': ['AsyncGeneratorFunction', 'prototype', 'prototype'],

	'%BooleanPrototype%': ['Boolean', 'prototype'],

	'%DataViewPrototype%': ['DataView', 'prototype'],

	'%DatePrototype%': ['Date', 'prototype'],

	'%ErrorPrototype%': ['Error', 'prototype'],

	'%EvalErrorPrototype%': ['EvalError', 'prototype'],

	'%Float32ArrayPrototype%': ['Float32Array', 'prototype'],

	'%Float64ArrayPrototype%': ['Float64Array', 'prototype'],

	'%FunctionPrototype%': ['Function', 'prototype'],

	'%Generator%': ['GeneratorFunction', 'prototype'],

	'%GeneratorPrototype%': ['GeneratorFunction', 'prototype', 'prototype'],

	'%Int8ArrayPrototype%': ['Int8Array', 'prototype'],

	'%Int16ArrayPrototype%': ['Int16Array', 'prototype'],

	'%Int32ArrayPrototype%': ['Int32Array', 'prototype'],

	'%JSONStringify%': ['JSON', 'stringify'],

	'%NumberPrototype%': ['Number', 'prototype'],

	'%ObjectPrototype%': ['Object', 'prototype'],

	'%ObjProto_toString%': ['Object', 'prototype', 'toString'],

	'%ObjProto_valueOf%': ['Object', 'prototype', 'valueOf'],

	'%PromisePrototype%': ['Promise', 'prototype'],

	'%PromiseProto_then%': ['Promise', 'prototype', 'then'],

	'%Promise_reject%': ['Promise', 'reject'],

	'%Promise_resolve%': ['Promise', 'resolve'],

	'%RangeErrorPrototype%': ['RangeError', 'prototype'],

	'%ReferenceErrorPrototype%': ['ReferenceError', 'prototype'],

	'%RegExpPrototype%': ['RegExp', 'prototype'],

	'%SharedArrayBufferPrototype%': ['SharedArrayBuffer', 'prototype'],

	'%StringPrototype%': ['String', 'prototype'],

	'%SymbolPrototype%': ['Symbol', 'prototype'],

	'%SyntaxErrorPrototype%': ['SyntaxError', 'prototype'],

	'%TypedArrayPrototype%': ['TypedArray', 'prototype'],

	'%TypeErrorPrototype%': ['TypeError', 'prototype'],

	'%Uint8ArrayPrototype%': ['Uint8Array', 'prototype'],

	'%Uint8ClampedArrayPrototype%': ['Uint8ClampedArray', 'prototype'],

	'%Uint16ArrayPrototype%': ['Uint16Array', 'prototype'],

	'%Uint32ArrayPrototype%': ['Uint32Array', 'prototype'],

	'%URIErrorPrototype%': ['URIError', 'prototype'],

	'%WeakMapPrototype%': ['WeakMap', 'prototype'],

	'%WeakSetPrototype%': ['WeakSet', 'prototype']

var $concat = bind.call(Function.call, Array.prototype.concat);

var $spliceApply = bind.call(Function.apply, Array.prototype.splice);

var $replace = bind.call(Function.call, String.prototype.replace);

var $strSlice = bind.call(Function.call, String.prototype.slice);

	"description": "Get and robustly cache all JS language-level intrinsics at first require time",

		"prepack": "npmignore --auto --commentLines=autogenerated",

		"prepublish": "not-in-publish || npm run prepublishOnly",

		"prepublishOnly": "safe-publish-latest",

		"tests-only": "nyc tape 'test/**/*.js'",

		"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)\")\""

		"url": "git+https://github.com/ljharb/get-intrinsic.git"

	"author": "Jordan Harband <ljharb@gmail.com>",

		"url": "https://github.com/sponsors/ljharb"

		"url": "https://github.com/ljharb/get-intrinsic/issues"

	"homepage": "https://github.com/ljharb/get-intrinsic#readme",

		"make-async-generator-function": "^1.0.0",

		@@ -8,2 +8,8 @@ # Changelog

		## [v1.2.4](https://github.com/ljharb/get-intrinsic/compare/v1.2.3...v1.2.4) - 2024-02-05

		### Commits

		- [Refactor] use all 7 <+ ES6 Errors from `es-errors` [`bcac811`](https://github.com/ljharb/get-intrinsic/commit/bcac811abdc1c982e12abf848a410d6aae148d14)

		## [v1.2.3](https://github.com/ljharb/get-intrinsic/compare/v1.2.2...v1.2.3) - 2024-02-03
		@@ -10,0 +16,0 @@

		@@ -5,5 +5,9 @@ 'use strict';

		var $Error = require('es-errors');
		var $EvalError = require('es-errors/eval');
		var $RangeError = require('es-errors/range');
		var $ReferenceError = require('es-errors/ref');
		var $SyntaxError = require('es-errors/syntax');
		var $TypeError = require('es-errors/type');
		var $URIError = require('es-errors/uri');

		@@ -83,5 +87,5 @@ var $Function = Function;
		'%encodeURIComponent%': encodeURIComponent,
		'%Error%': Error,
		'%Error%': $Error,
		'%eval%': eval, // eslint-disable-line no-eval
		'%EvalError%': EvalError,
		'%EvalError%': $EvalError,
		'%Float32Array%': typeof Float32Array === 'undefined' ? undefined : Float32Array,
		@@ -109,3 +113,3 @@ '%Float64Array%': typeof Float64Array === 'undefined' ? undefined : Float64Array,
		'%RangeError%': $RangeError,
		'%ReferenceError%': ReferenceError,
		'%ReferenceError%': $ReferenceError,
		'%Reflect%': typeof Reflect === 'undefined' ? undefined : Reflect,
		@@ -127,3 +131,3 @@ '%RegExp%': RegExp,
		'%Uint32Array%': typeof Uint32Array === 'undefined' ? undefined : Uint32Array,
		'%URIError%': URIError,
		'%URIError%': $URIError,
		'%WeakMap%': typeof WeakMap === 'undefined' ? undefined : WeakMap,
		@@ -130,0 +134,0 @@ '%WeakRef%': typeof WeakRef === 'undefined' ? undefined : WeakRef,

		{
		"name": "get-intrinsic",
		"version": "1.2.3",
		"version": "1.2.4",
		"description": "Get and robustly cache all JS language-level intrinsics at first require time",
		@@ -76,3 +76,3 @@ "main": "index.js",
		"dependencies": {
		"es-errors": "^1.0.0",
		"es-errors": "^1.3.0",
		"function-bind": "^1.1.2",
		@@ -79,0 +79,0 @@ "has-proto": "^1.0.1",

Improved metrics

Dependency changes