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Learn ECMAScript

You're reading from   Learn ECMAScript Discover the latest ECMAScript features in order to write cleaner code and learn the fundamentals of JavaScript

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Product type Paperback
Published in Feb 2018
Publisher
ISBN-13 9781788620062
Length 298 pages
Edition 2nd Edition
Languages
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Authors (2):
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Narayan Prusty Narayan Prusty
Author Profile Icon Narayan Prusty
Narayan Prusty
MEHUL MOHAN MEHUL MOHAN
Author Profile Icon MEHUL MOHAN
MEHUL MOHAN
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Table of Contents (14) Chapters Close

Preface 1. Getting Started with ECMAScript FREE CHAPTER 2. Knowing Your Library 3. Using Iterators 4. Asynchronous Programming 5. Modular Programming 6. Implementing the Reflect API 7. Proxies 8. Classes 9. JavaScript on the Web 10. Storage APIs in JavaScript 11. Web and Service Workers 12. Shared Memory and Atomics 13. Other Books You May Enjoy

async/await – the future of asynchronous programming

To be honest, async/await blows away whatever you read previously about promises. But hey! You obviously need to know how promises work in order to know how to work with async/await. async/await are built on top of promises; however, once you get used to them, there is no going back to promises (unless, again, you need to convert a callback type API to async/await (you need to use promises for that).)

About async/await:

  • It's for asynchronous coding
  • It makes code look extremely similar to synchronous coding and thus makes it extremely powerful and easy on the eyes
  • It is built on top of promises
  • It makes error handling a cake walk. You can finally use try and catch with asynchronous coding!
  • ES8 introduced async/await and, by the time you're reading this, it will have been implemented in all browsers natively...
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