Get and robustly cache all JS language-level intrinsics at first require time
Improved typeof detection for node.js and the browser.
Perform async work synchronously in Node.js using `worker_threads` with first-class TypeScript support.
JSON for Humans
Simple key-value storage with support for multiple backends
Determine if a value is an ES6 Symbol or not.
HTTP status utility
Is this value negative zero? === will lie to you
Store information about any JS value in a side channel, using a Map
The fastest directory crawler & globbing alternative to glob, fast-glob, & tiny-glob. Crawls 1m files in < 1s
ES5 spec-compliant shim for String.prototype.trim
Node.js final http responder
Determine if the current node version supports the `--preserve-symlinks` flag.
Which kind of Collection (Map, Set, WeakMap, WeakSet) is this JavaScript value? Works cross-realm, without `instanceof`, and despite Symbol.toStringTag.
TypeScript plugin for ESLint
TypeScript-first schema declaration and validation library with static type inference
A tool set for CSS: fast detailed parser (CSS → AST), walker (AST traversal), generator (AST → CSS) and lexer (validation and matching) based on specs and browser implementations
Determine if the JS environment has `Symbol.toStringTag` support. Supports spec, or shams.
Which kind of Typed Array is this JavaScript value? Works cross-realm, without `instanceof`, and despite Symbol.toStringTag.
A light-weight module that brings Fetch API to node.js
Human-friendly process signals
An AST-based pattern checker for JavaScript.
Define a data property on an object. Will fall back to assignment in an engine without descriptors.
TypeScript definitions for @babel/core