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Professional JavaScript

You're reading from   Professional JavaScript Fast-track your web development career using the powerful features of advanced JavaScript

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Product type Paperback
Published in Sep 2019
Publisher
ISBN-13 9781838820213
Length 664 pages
Edition 1st Edition
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Tools
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Authors (4):
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Hugo Di Francesco Hugo Di Francesco
Author Profile Icon Hugo Di Francesco
Hugo Di Francesco
Siyuan Gao Siyuan Gao
Author Profile Icon Siyuan Gao
Siyuan Gao
Vinicius Isola Vinicius Isola
Author Profile Icon Vinicius Isola
Vinicius Isola
Philip Kirkbride Philip Kirkbride
Author Profile Icon Philip Kirkbride
Philip Kirkbride
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Toc

Table of Contents (12) Chapters Close

Preface 1. JavaScript, HTML, and the DOM FREE CHAPTER 2. Node.js and npm 3. Node.js APIs and Web Scraping 4. RESTful APIs with Node.js 5. Modular JavaScript 6. Code Quality 7. Advanced JavaScript 8. Asynchronous Programming 9. Event-Driven Programming and Built-In Modules 10. Functional Programming with JavaScript Appendix

8. Asynchronous Programming

Learning Objectives

By the end of this chapter, you will be able to:

  • Describe the workings of an asynchronous operation
  • Use callback to handle async operations
  • Demonstrate callbacks and event loops
  • Implement promises to handle async operations
  • Rewrite async code with callbacks using promises
  • Refactor your legacy code using async and await functions

In this chapter, we will explore the asynchronous (later abbreviated as async) nature of JavaScript. The focus will be on how conventional languages handle operations that take time to complete, and how JavaScript handles these operations. Later, we will discuss various methods we can adopt to handle these situations in JavaScript.

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