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.

I’ve previously covered the basics of JavaScript promises and how to use the async/await keywords to simplify your existing asynchronous code. This article is a more advanced look at JavaScript ...

Promises These are associated with introducing a kind of concurrency or parallelism (or a combination of the two) into the single-threaded JavaScript language. "JavaScript is single threaded, meaning ...

The Practical Client Simple Asynchronous Processing for Web Service Calls You don't need to write ugly code to synchronize your AJAX calls. Instead, you can leverage await/async and the JQueryXHR ...