Understanding JavaScript Promises

Editora:

Lulu Press

Código:

491_9781678034153

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Since promises were added to JavaScript in 2015, they have become an integral part of the language. A good understanding of how promises work is more important than ever in becoming a proficient JavaScript developer. This book begins by explaining the basic concepts behind promises, including what they are, how to use them, and how to create your own. Youll then build upon these basic concepts to learn how to chain promises together and how to respond to multiple promises at once. Once youve learned these advanced concepts, youll move on to learn how promises work with async functions and how to track unhandled promise rejections. All of the concepts discussed are grounded in real world examples so you learn not just how to use a particular technique, but also why and when to use it. It doesnt matter if youre writing JavaScript for web browsers, Node.js, or Deno, this book will teach you everything you need to know about promises.

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