Async JavaScript

Callbacks, promises, async/await and error handling.

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JavaScript Full Course for Beginners

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1. 00:00Async JavaScript. Callbacks, promises, async/await and error handling.
2. 00:05JavaScript is single threaded.
3. 00:10Long tasks are handled asynchronously: a promise represents a value that will exist later. async/await is syntax sugar over promises.
4. 00:18Try it yourself — edit the sample and run it in the browser.

JavaScript is single threaded. Long tasks are handled asynchronously: a promise represents a value that will exist later. async/await is syntax sugar over promises.