ljharb/es-get-iterator

Robustly `.call.bind()` a function

Get and robustly cache all JS language-level intrinsics at first require time

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

Is this an arguments object? It's a harder question than you think.

Array#isArray for older browsers

My shareable eslint config

Use `npx aud` instead of `npm audit`, whether you have a lockfile or not!

Command line tool for generating a changelog from git tags and commit history

Standard library

ECMAScript 5 compatibility shims for legacy JavaScript engines

ECMAScript 6 (Harmony) compatibility shims for legacy JavaScript engines

A better forEach

Determine if the JS environment has BigInt support.

Command line tool for creating or updating a .npmignore file based on .gitignore.

the Istanbul command line interface

string representations of objects in node and the browser

Ensure that when you `npm publish`, the "latest" tag is only set for the truly latest version.

tap-producing test harness for node and browsers

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

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

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

Firefox 17-26 iterators throw a StopIteration object to indicate "done". This normalizes it.