ES2017 spec-compliant Object.values shim.
Is this value negative zero? === will lie to you
Is this value a JS Boolean? This module works cross-realm/iframe, and despite ES6 @@toStringTag.
TypeScript-first schema declaration and validation library with static type inference
An ESnext spec-compliant `Array.prototype.findLast` shim/polyfill/replacement that works as far down as ES3.
ECMAScript “ToPrimitive” algorithm. Provides ES5 and ES2015 versions.
Determine if the JS environment has BigInt support.
Helper functions for V8 coverage files.
Determine if a value is an ES6 Symbol or not.
Unbox a boxed JS primitive value.
An ESnext spec-compliant `Array.prototype.findLastIndex` shim/polyfill/replacement that works as far down as ES3.
ECMAScript spec-compliant polyfill/shim for `globalThis`
ES2017 spec-compliant Object.entries shim.
Helper package to shim a method into `Array.prototype[Symbol.unscopables]`
Simple to use, blazing fast and thoroughly tested websocket client and server for Node.js
ES proposal-spec-compliant Object.fromEntries shim.
Is this value a JS Date object? This module works cross-realm/iframe, and despite ES6 @@toStringTag.
This plugin adds `TypeScript` support to `eslint-plugin-import`
Is this value an ES BigInt?
A collection of essential TypeScript types
Is this value a JS String object or primitive? This module works cross-realm/iframe, and despite ES6 @@toStringTag.
Write files in an atomic fashion w/configurable ownership
Determine if a function is a native async function.
`Object.defineProperty`, but not IE 8's broken one.