Is this value an ES BigInt?

Remove nullish coalescing operator

Generate, and decode, base64 VLQ mappings for source maps and other uses

Wrap those words. Show them at what columns to start and stop.

Treat a collection of Buffers as a single contiguous partially mutable Buffer.

Is this value an ES BigInt?

Load virtual modules from memory

Collection of helper functions used by Babel transforms.

Compile class public and private fields, private methods and decorators to ES6

Robustly get an object's own property keys (strings and symbols), including non-enumerables when possible

A function to check whether a prop is valid for HTML and SVG elements

Parse JSON with more helpful errors

Find a file or directory by walking up parent directories

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.

Is this value a JS Map? This module works cross-realm/iframe, and despite ES6 @toStringTag.

React package for working with the DOM.

Compile regular expressions using named groups to ES5.

A memoization library which only remembers the latest invocation

Deprecate all the things

A querystring parser that supports nesting and arrays, with a depth limit

Simple RFC 6838 media type parser and formatter

Write files in an atomic fashion w/configurable ownership

a glob matcher in javascript

The string_decoder module from Node core