Enzyme : Enzyme is a JavaScript Testing utility for React that makes it easier to assert, manipulate, and traverse your React Components' output.
Nx : Nx is a smart and extensible build framework to help you architect, test, and build at any scale — integrating seamlessly with modern technologies and...
Bliss.js : Want to use Vanilla JS but find native APIs a bit unwieldy? Bliss is for you
yepnope.js : A Conditional Loader For Your Polyfills!