Compile ES2015 classes to ES5

Compile ES2015 Unicode regex to ES5

A Babel preset for each environment.

Transform test runner for @babel/helper-fixtures module

Babel preset for TypeScript.

Babel compiler core.

Babel preset to make node@4 ES2015 compatible.

Babel preset for all es2015 plugins.

Runtime for Regenerator-compiled generator and async functions.

Extends Chai with assertions about promises.