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Proposal to document design invariants in TC39

Ultimo commit 9 lug 2020

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ljharb/dt-cleanJavaScript

Ensures the only DefinitelyTyped (`@types`) packages you have installed are the ones you need.

Ultimo commit 4 ago 2026

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Status, process, and documents for ECMA262

Ultimo commit 5 giu 2026

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Custom emojis supported by Buildkite which you can use in your build pipelines and terminal output.

Ultimo commit 13 mar 2018

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ljharb/entJavaScript

Encode and decode HTML entities

Ultimo commit 16 dic 2024

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ljharb/enzymeJavaScript

JavaScript Testing utilities for React

Ultimo commit 5 apr 2021

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Example project with React + Enzyme + Tape

Ultimo commit 14 nov 2018

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ECMAScript spec abstract operations.

Ultimo commit 21 mag 2026

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ECMAScript Abstract Operations for "getting properties" (Get, GetV, GetMethod)

Ultimo commit 16 giu 2026

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Utility package to determine if an `Array.prototype` method properly boxes the callback's receiver and third argument.

Ultimo commit 16 mar 2026

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`Object.defineProperty`, but not IE 8's broken one.

Ultimo commit 6 dic 2024

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A simple cache for a few of the JS Error constructors.

Ultimo commit 9 mar 2024

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Get an iterator for any JS language value. Works robustly across all environments, all versions.

Ultimo commit 15 giu 2024

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A promise implementation of Promises/A+, and with es7 promise enhancements.

Ultimo commit 12 giu 2018

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Helper package to shim a method into `Array.prototype[Symbol.unscopables]`

Ultimo commit 13 gen 2026

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ECMAScript "ToPrimitive" algorithm. Provides ES5 and ES6/ES2015 versions.

Ultimo commit 26 giu 2026

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Fixtures of ES values, for testing purposes.

Ultimo commit 23 gen 2025

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ljharb/es5-shimJavaScript

ECMAScript 5 compatibility shims for legacy JavaScript engines

Ultimo commit 14 apr 2022

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A polyfill for ES6-style Promises

Ultimo commit 23 set 2015

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ljharb/es6-shimJavaScript

ECMAScript 6 (Harmony) compatibility shims for legacy JavaScript engines

Ultimo commit 16 apr 2026

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