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Asynchronous JavaScript - Learn web development | MDN
Asynchronous JavaScript is a fairly advanced topic, and you are advised to work through Dynamic scripting with JavaScript modules before attempting this.
Note:
If you are working on a computer, tablet, or another device where you can't create files, you can try running the code in an online editor such as CodePen or JSFiddle .
Introducing asynchronous JavaScript
In this article, we'll learn about synchronous and asynchronous programming, why we often need to use asynchronous techniques, and the problems related to the way asynchronous functions have historically been implemented in JavaScript.
How to use promises
Here we'll introduce promises and show how to use promise-based APIs. We'll also introduce the async and await keywords.
Implementing a promise-based API
This article will outline how to implement your own promise-based API.
Introducing workers
Workers enable you to run certain tasks in a separate thread to keep your main code responsive. In this article, we'll rewrite a long-running synchronous function to use a worker.
Sequencing animations Challenge
This challenge asks you to use promises to play a set of animations in a particular sequence.
