Cross platform child_process#spawn and child_process#spawnSync

Lightweight debugging utility for Node.js and the browser

Node.js implementation of port detector

Lightweight, zero-dependency JavaScript utility to convert bytes to human-readable strings with localization support

fs-extra contains methods that aren't included in the vanilla Node.js fs package. Such as recursive mkdir, copy, and remove.

A collection of common interactive command line user interfaces.

parse argument options

Run an array of functions in series

The semantic version parser used by npm.

Variant of merge that's useful for webpack configuration

Babel command line.

Babel compiler core.

Remove nullish coalescing operator

Transform optional chaining operators into a series of nil checks

Allow parsing of jsx

Treat React JSX elements as value types and hoist them to the highest scope

Turn JSX into React function calls

Externalise references to helpers and builtins, automatically polyfilling your code without polluting globals

Provides polyfills necessary for a full ES2015+ environment

A Babel preset for each environment.

Babel preset for all React plugins.

babel's modular runtime helpers

An **EXPERIMENTAL** Webpack plugin to enable "Fast Refresh" (also previously known as _Hot Reloading_) for React components.

Fix babel/babel#2212

Turn JSX into Inferno virtual DOM

A babel plugin that adds istanbul instrumentation to ES6 code

A plugin for Babel 6 that (mostly) replicates the old decorator behavior from Babel 5.

Remove unnecessary React propTypes from the production build

A Babel preset to manage use of proposal plugins

React is a JavaScript library for building user interfaces.

Spectacular Test Runner for JavaScript.

A Karma plugin. Launcher for Chrome and Chrome Canary.

A Karma plugin. Generate code coverage.

A Karma plugin. Adapter for Mocha testing framework.

Karma reporter with mocha style logging.

A Karma plugin. Launcher for PhantomJS.

Karma plugin that locates and loads existing javascript source map files.

Headless WebKit with JS API

simple, flexible, fun test framework

Packs ECMAScript/CommonJs/AMD modules for the browser. Allows you to split your codebase into multiple bundles, which can be loaded on demand. Supports loaders to preprocess files, i.e. json, jsx, es7