Next-generation ES module bundler
Media Type Database
Get and robustly cache all JS language-level intrinsics at first require time
Packs ECMAScript/CommonJs/AMD modules for the browser. Allows you to split your codebase into multiple bundles, which can be loaded on demand. Supports loaders to preprocess files, i.e. json, jsx, es7, css, less, ... and your custom stuff.
TypeScript is a language for application scale JavaScript development
Prettier is an opinionated code formatter
Does this JS environment support the `name` property on functions?
JSON for Humans
Perform async work synchronously in Node.js using `worker_threads` with first-class TypeScript support.
The fastest directory crawler & globbing alternative to glob, fast-glob, & tiny-glob. Crawls 1m files in < 1s
HTTP status utility
Determine if the current node version supports the `--preserve-symlinks` flag.
Determine if the JS environment has `Symbol.toStringTag` support. Supports spec, or shams.
Determine if a value is an ES6 Symbol or not.
Is this value negative zero? === will lie to you
ES Math-related intrinsics and helpers, robustly cached.
Bash-like brace expansion, implemented in JavaScript. Safer than other brace expansion libs, with complete support for the Bash 4.3 braces specification, without sacrificing speed.
TypeScript-first schema declaration and validation library with static type inference
TypeScript plugin for ESLint
Runtime typescript and ESM support for Node.js
A light-weight module that brings Fetch API to node.js
An AST-based pattern checker for JavaScript.
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
Which kind of Typed Array is this JavaScript value? Works cross-realm, without `instanceof`, and despite Symbol.toStringTag.