An ES2019 spec-compliant `Array.prototype.flatMap` shim/polyfill/replacement that works as far down as ES3.

Helper functions around Function call/apply/bind, for use in `call-bind`

Implementation of Function.prototype.bind

Does the environment have full property descriptor support? Handles IE 8's broken defineProperty/gOPD.

ES2019 spec-compliant String.prototype.trimStart shim.

Determine if the JS environment has `Symbol.toStringTag` support. Supports spec, or shams.

An ESnext spec-compliant `Array.prototype.findLast` shim/polyfill/replacement that works as far down as ES3.

Universal pluggable logging utility

Get repository user and project information from package.json file contents.

rehype plugin to reparse the tree (and raw nodes)

micromark extension to support frontmatter (YAML, TOML, etc)

An ES2019 spec-compliant `Array.prototype.flat` shim/polyfill/replacement that works as far down as ES3.

An ES2015 mostly-spec-compliant `Reflect.getPrototypeOf` sham/polyfill/replacement that works in as many engines as possible

High-speed HTTP logger for Node.js

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

Determine if the JS environment has Symbol support. Supports spec, or shams.

Super light and fast Extensible ES6+ events and EventEmitters for Node and the browser. Easy for any developer level, use the same exact code in node and the browser. No frills, just high speed events!

Robust call-bound JavaScript intrinsics, using `call-bind` and `get-intrinsic`.

This library provides the functionality of PBKDF2 with the ability to use any supported hashing algorithm returned from crypto.getHashes()

output coverage reports using Node.js' built in coverage