Standard library
invariant
Port of jQuery.extend for node.js and the browser
core-js compat
Zero CPU overhead, zero dependency, true event-loop blocking sleep
ECMAScript parsing infrastructure for multipurpose analysis
Boolean arrays that can be serialized to and from base64.
Detect if your code is running on an AWS Lambda server
Parses CSS inline style to JavaScript object (camelCased).
Is this specifier a node.js core module?
A replacement for process.exit that ensures stdio are fully drained before exiting.
Which kind of Collection (Map, Set, WeakMap, WeakSet) is this JavaScript value? Works cross-realm, without `instanceof`, and despite Symbol.toStringTag.
Is this value a JS WeakRef? This module works cross-realm/iframe, and despite ES6 @@toStringTag.
Does the environment have full property descriptor support? Handles IE 8's broken defineProperty/gOPD.
Copies non-react specific statics from a child component to a parent component
Does this JS environment support the `name` property on functions?
Like ruby's abbrev module, but in js
PostCSS for CSS-in-JS and styles in JS objects
High performance middleware framework
Efficient implementation of Levenshtein algorithm with locale-specific collator support.
set blocking stdio and stderr ensuring that terminal output does not truncate
delegate methods and accessors to another property
JavaScript implementation of the BSER Binary Serialization
A robust polyfill for the `CSS.escape` utility method as defined in CSSOM.