TypeScript is a language for application scale JavaScript development

Provides polyfills necessary for a full ES2015+ environment

CLI for webpack & friends

Prettier is an opinionated code formatter

Manage session history with JavaScript

Gulp task to concat, prepend, append or transform files

Babel preset for stage 0 plugins

Creates ES6 ./index.js file in target directories that imports and exports all sibling files and directories.

Standard library

Recursively mkdir, like `mkdir -p`

Lodash modular utilities.

ECMAScript 6 Symbol polyfill

Babel preset for all React plugins.

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

A Babel preset for each environment.