bublejs/buble

ECMAScript 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

Modern, fast React.js JSX parser

Support dynamic imports in acorn

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

basic console.group implementation for node