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 ...

Nowadays JavaScript has three different keywords to declare a variable — var, let and, const. Each has its own properties and particularities. Let’s start by making a simple comparison table of the ...

Escape the single-threaded event loop in browsers and on the server. Here's how to use worker threads and web workers for modern multithreading in JavaScript. The JavaScript language is one of the ...