Express.js

Express.js is the standard JavaScript-based server framework commonly used with Node.js runtime environment. A minimalistic-yet-powerful due to many functions available as plugins, this technology is perfectly applicable for the development of all types of web applications (hybrid, multi-page, single-page) and thus has become the essential back-end part of the top-notch MEAN technology stack, together with the front-end framework Angular.js and MongoDB database technology.