July 2016
Intermediate to advanced
526 pages
11h 42m
English
Content preview from Node.js Design Patterns - Second EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Chapter 4. Asynchronous Control Flow Patterns with ES2015 and Beyond
In the previous chapter, we learned how to deal with asynchronous code using callbacks and how they can have a bad impact on our code, generating issues such as callback hell. Callbacks are the building blocks of asynchronous programming in JavaScript and in Node.js, but over the years, other alternatives have emerged. Those alternatives are more sophisticated in order to be able to deal with asynchronous code in ways that are more convenient.
In this chapter, we are going to explore some of the most famous alternatives, promises and generators. We will also explore async await, an innovative syntax that will be available in JavaScript as part of the release of ECMAScript 2017. ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.