bublejs/buble

ECMAScript parser

Support dynamic imports in acorn

Modern, fast React.js JSX parser

Modify strings, generate sourcemaps

parse argument options

the most correct and second fastest glob implementation in JavaScript

simple, flexible, fun test framework

A deep deletion module for node (like `rm -rf`)

Generates and consumes source maps

Fixes stack traces for files with source maps

regexpu’s core functionality (i.e. `rewritePattern(pattern, flag)`), capable of translating ES6 Unicode regular expressions to ES5.

basic console.group implementation for node