Define multiple non-enumerable properties at once. Uses `Object.defineProperty` when available; falls back to standard assignment in older engines.
ES6 spec-compliant RegExp.prototype.flags shim.
yargs the modern, pirate-themed, successor to optimist.
HTTP and HTTPS modules that follow redirects.
Create HTTP error objects
Is this JS value callable? Works with Functions and GeneratorFunctions, despite ES6 @@toStringTag.
HTML parser and serializer.
webpack Validation Utils
parse argument options
A lightweight cache for file metadata, ideal for processes that work on a specific set of files and only need to reprocess files that have changed since the last run
Helper functions for V8 coverage files.
Promise based HTTP client for the browser and node.js
Determine if a function is a native generator function.
Fill in a range of numbers or letters, optionally passing an increment or `step` to use, or create a regex-compatible range with `options.toRegex`
TypeScript definitions for @babel/traverse
A utility-first CSS framework for rapidly building custom user interfaces.
Fast, disk space efficient package manager
Custom jest matchers to test the state of the DOM
A tiny (118 bytes), secure URL-friendly unique string ID generator
Does the environment have full property descriptor support? Handles IE 8's broken defineProperty/gOPD.
A tiny invariant function
A collection of essential TypeScript types
ECMAScript “ToPrimitive” algorithm. Provides ES5 and ES2015 versions.
A Lucide icon library package for React applications.