The Fundamental Utilities for ECMAScript.
An ES2019 spec-compliant `Array.prototype.flatMap` shim/polyfill/replacement that works as far down as ES3.
An ES2019 spec-compliant `Array.prototype.flat` shim/polyfill/replacement that works as far down as ES3.
An ESnext spec-compliant iterator helpers shim/polyfill/replacement that works as far down as ES3.
An ESnext spec-compliant `Array.prototype.findLastIndex` shim/polyfill/replacement that works as far down as ES3.
An ESnext spec-compliant `Array.prototype.findLast` shim/polyfill/replacement that works as far down as ES3.
An ES7/ES2016 spec-compliant `Array.prototype.includes` shim/polyfill/replacement that works as far down as ES3.
A complete implementation of Protocol Buffers in TypeScript, suitable for web browsers and Node.js.
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An ESnext spec-compliant `Array.prototype.toSorted` shim/polyfill/replacement that works as far down as ES3.
JavaScript parser, mangler/compressor and beautifier toolkit for ES6+
An ES5 spec-compliant `Array.prototype.reduce` shim/polyfill/replacement that works as far down as ES3.
ES Object-related atoms: Object, ToObject, RequireObjectCoercible
A simple cache for a few of the JS Error constructors.
A helper to optimistically set Symbol.toStringTag, when possible.
`Object.defineProperty`, but not IE 8's broken one.
ECMAScript spec abstract operations.
An ES5 spec-compliant `Array.prototype.map` shim/polyfill/replacement that works as far down as ES3.
A state-of-the-art, high-performance JavaScript utility library with a small bundle size and strong type annotations.
ECMAScript “ToPrimitive” algorithm. Provides ES5 and ES2015 versions.
ES2019 spec-compliant String.prototype.trimStart shim.
An ES5 spec-compliant `Array.prototype.filter` shim/polyfill/replacement that works as far down as ES3.
Helper package to shim a method into `Array.prototype[Symbol.unscopables]`
Lodash exported as ES modules.