May 2018
Intermediate to advanced
190 pages
2h 19m
English
book
Practical ES6
by Aurelio De Rosa, Kyle Pennell, Nilson Jacques, Craig Buckler, Byron Houwens, Jeff Mott, Sandeep Panda, Graham Cox, Ludovico Fischer, James Wright
Content preview from Practical ES6
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Chapter 13: An Overview of JavaScript Promises
by Sandeep Panda
This tutorial covers the basics of JavaScript promises, showing how you can leverage them in your JavaScript development.
The concept of promises is not new to web development. Many of us have already used promises in the form of libraries such as Q, when.js, RSVP.js, etc. Even jQuery has something called a Deferred object, which is similar to a promise. But now we have native support for promises in JavaScript, which is really exciting.
Overview
A Promise object represents a value that may not be available yet, but will be resolved at some point in the future. It allows you to write asynchronous code in a more synchronous fashion. For example, if you use the promise API to make ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
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.
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