ljharb/util.promisify

Robustly `.call.bind()` a function

Define multiple non-enumerable properties at once. Uses `Object.defineProperty` when available; falls back to standard assignment in older engines.

A better forEach

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

Loosely test a package's compliance with the es-shim API

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

Detect if we were run as a result of `npm publish`

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

the Istanbul command line interface

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

Does this environment have the ability to get the [[Prototype]] of an object on creation with `__proto__`?

ES2017 spec-compliant shim for `Object.getOwnPropertyDescriptors` that works in ES5.

`Array.prototype.concat`, but made safe by ignoring Symbol.isConcatSpreadable