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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Duck typing and polymorphism
Often duck typing is assimilated to polymorphism, since it allows in some way to uniformly manage different type of objects. However, they are different concepts.
Polymorphism is a concept found on types whereas duck typing is found on contracts. With polymorphism, it is important what an object is and not how it behaves. In duck typing, it is important how an object behaves. Duck typing is more tied to the concept of objects that interact, rather than objects that are of a certain type.
However, duck typing can help to implement solutions that strongly typed languages resolve with true polymorphism. Let's consider an example where our software house wants to implement a method that creates a list of full names of all ...
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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.
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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.