June 2016
Beginner to intermediate
292 pages
6h 8m
English
Content preview from Mastering JavaScript Object-Oriented ProgrammingBecome 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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Controlling inheritance
Inheritance of members between objects is a powerful feature. However, in some situation, we want to control how member are passed from the parent object to the child and what a derived object can do with inherited members. Let's analyze the most common ways to control inheritance in JavaScript.
Overriding methods
When creating a derived object, we usually want to give it a slightly different behavior from parent object. This new behavior can be implemented by adding new methods or properties, but sometimes we need to redefine a method or a property of the parent object. In this case, we are talking about overriding.
Let's consider an example of a Person definition with a getFullName() method returning the concatenation of ...
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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.
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.