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define-properties

Define multiple non-enumerable properties at once. Uses `Object.defineProperty` when available; falls back to standard assignment in older engines.

published version 1.2.1, 2 years ago1637 dependents licensed under $MIT

248,507,950

object-keys

An Object.keys replacement, in case Object.keys is not available. From https://github.com/es-shims/es5-shim

published version 1.1.1, 6 years ago1617 dependents licensed under $MIT

243,591,250

es-abstract

ECMAScript spec abstract operations.

published version 1.24.0, a month ago1391 dependents licensed under $MIT

260,596,481

core-js

Standard library

published version 3.44.0, 2 days ago54531 dependents licensed under $MIT

203,577,927

string.prototype.trim

ES5 spec-compliant shim for String.prototype.trim

published version 1.2.10, 7 months ago785 dependents licensed under $MIT

166,474,001

reflect.getprototypeof

An ES2015 mostly-spec-compliant `Reflect.getPrototypeOf` sham/polyfill/replacement that works in as many engines as possible

published version 1.0.10, 6 months ago557 dependents licensed under $MIT

124,558,765

core-js-pure

Standard library

published version 3.44.0, 2 days ago575 dependents licensed under $MIT

71,479,299

array.prototype.reduce

An ES5 spec-compliant `Array.prototype.reduce` shim/polyfill/replacement that works as far down as ES3.

published version 1.0.8, 4 months ago242 dependents licensed under $MIT

31,271,049

array.prototype.map

An ES5 spec-compliant `Array.prototype.map` shim/polyfill/replacement that works as far down as ES3.

published version 1.0.8, 7 months ago260 dependents licensed under $MIT

14,081,969

array.prototype.filter

An ES5 spec-compliant `Array.prototype.filter` shim/polyfill/replacement that works as far down as ES3.

published version 1.0.4, a year ago139 dependents licensed under $MIT

8,611,753

reserved-words

ECMAScript reserved words checker

published version 0.1.2, 8 years ago210 dependents licensed under $MIT

5,653,281

@nevware21/ts-utils

Comprehensive TypeScript/JavaScript utility library with cross-environment support (Node.js, browser, web worker) providing helper functions, polyfills (ES5-ES2023), type checking utilities, and optimized implementations for better minification and code r

published version 0.12.5, 2 months ago33 dependents licensed under $MIT

2,090,106

array.prototype.every

An ES5 spec-compliant `Array.prototype.every` shim/polyfill/replacement that works as far down as ES3.

published version 1.1.7, 7 months ago5 dependents licensed under $MIT

1,090,574

o3

o3 - Javascript Class Framework

published version 1.0.3, 9 years ago3 dependents licensed under $MIT

390,330

object.getprototypeof

An ES5 mostly-spec-compliant `Object.getPrototypeOf` sham/polyfill/replacement that works in as many engines as possible

published version 1.0.7, 6 months ago7 dependents licensed under $MIT

482,104

core-js-bundle

Standard library

published version 3.44.0, 2 days ago28 dependents licensed under $MIT

239,430

es-class

A future proof, backward compatible, JavaScript class utility.

published version 2.1.1, 10 years ago10 dependents licensed under $MIT

105,700

array.prototype.some

An ES5 spec-compliant `Array.prototype.some` shim/polyfill/replacement that works as far down as ES3.

published version 1.1.6, a year ago4 dependents licensed under $MIT

85,104

raptor-polyfill

Polyfills for various EcmaScript 5 and EcmaScript 6 methods distributed as CommonJS modules that can be require'd individually or as a whole.

published version 1.1.0, 7 years ago34 dependents licensed under $MIT

30,336

@bitjourney/check-es-version-webpack-plugin

Webpack plugin to ensure the output results are valid in the specified ES version

published version 1.0.3, 6 years ago0 dependents licensed under $ISC

23,414