Node.js is a lean, fast, cross-platform JavaScript runtime environment that is useful for both servers and desktop applications.

JavaScript is the the programming language that built the web. Learn how it evolved into a powerful tool for building websites, servers with Node.js, mobile apps, desktop software, and more.

Asynchronous code (async code) says: go do something while I do other things, then let me know what happened when the results are ready. Also known as concurrency, async is important in a variety of ...