React is a JavaScript library for building user interfaces.

Allow parsing of jsx

A cache object that deletes the least-recently-used items.

Check if argv has a specific flag

Positioning library for floating elements: tooltips, popovers, dropdowns, and more

An Esprima-compatible JavaScript parser built on Acorn

The tiniest and the fastest library for terminal output formatting with ANSI colors

This packages is a collection of utilities and helper functions

Allow parsing of the nullish-coalescing operator

Bytes go in, but they don't come out (when muted).

Get the byteOffset out of a DataView, robustly.

Parser to convert mhchem syntax to LaTeX syntax, for downstream inclusion in MathJax, KaTeX and similar projects.

the complete solution for node.js command-line programs

Measure the difference between two strings using the fastest JS implementation of the Levenshtein distance algorithm

the mighty option parser used by yargs

Like JSON.stringify, but doesn't blow up on circular refs.

HTTP response freshness testing

An implementation of the WHATWG URL Standard's URL API and parsing machinery

Higher-order functions and common patterns for asynchronous code

External helpers for the swc project.

An AST-based pattern checker for JavaScript.

Give a regex, get a robust predicate function that tests it against a string.

Allows users to use generators in order to write common functions that can be both sync or async.

a streaming CRC32 checksumer