Async/await in Javascript

How to write asynchronous programs in modern jаvascript What you'll learn:
How to use async functions
How to handle errors in async code
How to use Promises and callbacks with async/await
The best practices on how to write asynchronous jаvascript code

Requirements
A working knowledge of jаvascript (functions, web APIs, arrow functions, objects, ...)

Description
Asynchronous programming models are everywhere in modern jаvascript. As there is no synchronous waiting, even setTimeout needs a callback. Because of this, modern jаvascript programs tend to use many async functions.

From this course you'll learn everything you need to get started writing async programs. It not only includes the basics and a few examples but an in-depth discussion of the topics related to async/await. By the end of the course, you'll be confident to write, analyze, and optimize code that relies on asynchronous operations.

Why learn async/await?

Async/await is the mainstream today, after it became clear that callbacks alone tend to result in unmaintainable code (the "callback hell") and Promise chains require an unfamiliar coding style. It is supported in all modern environments (browsers and Node.Js) and most code written today uses it in some form.

By learning how it works, you'll be able to avoid the common errors and write code that follows the current best practices. You'll also recognize what examples are outdated when you search for snippets online.

What you'll learn in this course

We'll start with the basics, then build up understanding by looking into what happens under the hood. We'll detail how Promises work, as even though async/await does a good job of hiding the details Promises are still everywhere. Error handling is also discussed, as that is the part that is easiest to get wrong.

How async functions and await works

How to construct Promises

Error handling

Async performance

Promisification

Common errors and best practices

Take a look at the "What you'll learn" video

Who this course is for
jаvascript developers



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