Build and test portable JavaScript/rustwasm modules
A simple cache for a few of the JS Error constructors.
A tiny library for packing 2D rectangles (for sprite layouts)
Lexes ES modules returning their import/export metadata
A helper to optimistically set Symbol.toStringTag, when possible.
ES Object-related atoms: Object, ToObject, RequireObjectCoercible
`Object.defineProperty`, but not IE 8's broken one.
tar-stream is a streaming tar parser and generator and nothing else. It operates purely using streams which means you can easily extract/parse tarballs without ever hitting the file system.
ECMAScript spec abstract operations.
ECMAScript “ToPrimitive” algorithm. Provides ES5 and ES2015 versions.
Helper package to shim a method into `Array.prototype[Symbol.unscopables]`
ES2019 spec-compliant String.prototype.trimStart shim.
ES6 spec-compliant RegExp.prototype.flags shim.
An ES2015 mostly-spec-compliant `Reflect.getPrototypeOf` sham/polyfill/replacement that works in as many engines as possible
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ES proposal-spec-compliant Object.fromEntries shim.
ES2017 spec-compliant Object.values shim.
ES2017 spec-compliant Object.entries shim.
A simple, lightweight JavaScript API for handling cookies
ES spec-compliant shim for ArrayBuffer.prototype.slice
Lexes CommonJS modules, returning their named exports metadata
Get an iterator for any JS language value. Works robustly across all environments, all versions.
Spec-compliant polyfill for String.prototype.matchAll
An ES2015 spec-compliant `Function.prototype.name` shim