JavaScript: You're Wrong, It's Not a Single-Threaded Language!

JavaScript is too often referred to as a single-threaded language, which is often not clear how much it's now a thing of the past! For too long, the language (and environments) has had many features that allow for multi-threaded work, finally lightening (and not a little) the much overworked main thread. From Workers to Atomics, from some small tricks to SharedArrayBuffers, we will dive into a journey that takes JavaScript to a new level, so we can say at the next opportunity: "You're wrong, JavaScript is not a single-threaded language!" Unfortunately, many crimes still prevail in our web applications, and not having a real bat belt, we can use the wonderful, multiple, and often too little-known Developer Tools! Let's analyze them, get to know them better, hook them onto our belt, and start fighting the bad guys lurking in our code... but remember, don't compare yourself to Batman!