February 2014
Intermediate to advanced
120 pages
2h 30m
English
Content preview from The Principles of Object-Oriented JavaScriptBecome 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 5. Inheritance
Learning how to create objects is the first step to understanding object-oriented programming. The second step is to understand inheritance. In traditional object-oriented languages, classes inherit properties from other classes.
In JavaScript, however, inheritance can occur between objects with no classlike structure defining the relationship. The mechanism for this inheritance is one with which you are already familiar: prototypes.
Prototype Chaining and Object.prototype
JavaScript’s built-in approach for inheritance is called prototype chaining, or prototypal inheritance. As you learned in Chapter 4, prototype properties are automatically available on object instances, which is a form of inheritance. The object instances ...
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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.