Node.js Streams, a user-land copy of the stream library from Node.js

The string_decoder module from Node core

Array#isArray for older browsers

Browser-friendly inheritance fully compatible with standard node.js inherits()

Check if something is a Node.js stream

Node.js Buffer API, for the browser

The `util.is*` functions introduced in Node v0.12.

Check if a value is a plain object

Base64 encoding/decoding in pure JS

Node's event emitter for all engines.

Lowercase the keys of an object

The core `url` packaged standalone for use with Browserify.

`Promise#finally()` ponyfill - Invoked when the promise is settled regardless of outcome

Prepend `https://` to humanized URLs like sindresorhus.com and localhost

Streaming http in the browser

timers module for browserify

Minimal lightweight logging for JavaScript, adding reliable log level methods to any available console.log methods

Node's querystring module for all engines. (ES3 compat fork)

Check whether a request can be retried based on the `error.code`

Get an ArrayBuffer from a Buffer as fast as possible

A simpler (and smaller) rewrite of Google Android's libphonenumber library in javascript

Client for the realtime Engine

Timeout HTTP/HTTPS requests

Tests if ES6 Symbol is supported.

Tests if ES6 @@toStringTag is supported.