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JavaScript Absolute Beginner's Guide, 2nd Edition
book

JavaScript Absolute Beginner's Guide, 2nd Edition

by Kirupa Chinnathambi
December 2019
Beginner content levelBeginner
464 pages
10h 31m
English
Que
Content preview from JavaScript Absolute Beginner's Guide, 2nd Edition

19. Extending Built-In Objects

In This Chapter

  • Extend your objects’ functionality

  • Learn more about the prototype chain

As we know very well by now, JavaScript comes from the factory with a good supply of built-in objects. These objects provide some of the core functionality for working with text, numbers, collections of data, dates, and a whole lot more. As you become more familiar with JavaScript and start doing interesting-er and cleverer things, you’ll often find that you want to do more and go farther than what the built-in objects allow.

Let’s take a look at an example of when something like this might occur. Below is an example of how we can shuffle the contents of an array:

function shuffle(input) ...
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Publisher Resources

ISBN: 9780136204213