Asynchronous programming in JavaScript leverages features like callbacks, promises and async/await to sidestep this issue by allowing other code to run in the meantime.

The world's most popular programming language is starting to look like a real programming language, with classes, modules, promises and more. There's even a lot of excited discussion about proper tail ...

Even more interesting for developers, however, is likely the upcoming addition of JavaScript Promises to IE. By default, JavaScript is single-threaded, so you can only run one script at a time.