How to use async/await and promises in JavaScript скачать в хорошем качестве

How to use async/await and promises in JavaScript

Want to learn how JavaScript async / await works and why it's what you need to know? I'll take you through a brief history of callback based programming in JavaScript, the emergence of Promises, and how async / await is just hands down the best way of working with Promises in your code. Don't forget to like and subscribe. -- 🐦 TWITTER:   / david_whitney   🕸️ WEBSITE: https://www.davidwhitney.co.uk 📖 DEV.TO: https://dev.to/david_whitney/ 👨🏻‍💻 GITHUB: https://github.com/davidwhitney/ 📲 LINKEDIN:   / davidwhitney   -- 0:00 Intro 0:55 Quokka PRO 1:42 Callbacks 3:40 Using data in callbacks 5:00 setTimeout and setInterval callbacks 6:10 Making web requests 8:30 Pyramids of callbacks are bad! 9:00 Rewriting to use Promises 11:30 promise.then() and promise.catch() method chaining 13:00 async and await 14:40 Using await 15:20 Using try...catch for error handling 16:40 Promisifying existing code 18:00 Readable code! 19:10 Simplifying the async code 20:00 async / await everywhere!