December 2016
Intermediate to advanced
841 pages
17h
English
Content preview from TypeScript: Modern JavaScript DevelopmentBecome 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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Interface segregation principle
We've already discussed the important role played by abstractions in object-oriented design. The abstractions and their derived classes without separation usually come up with hierarchical tree structures. That means when you choose to create a branch, you create a parallel abstraction to all of those on another branch.
For a family of classes with only one level of inheritance, this is not a problem: because it is just what you want to have those classes derived from. But for a hierarchy with greater depth, it could be.
Example
Consider the TextReader example we took with Template Method Pattern in Chapter 6, Behavioral Design Patterns: Continuous we had FileAsciiTextReader and HttpAsciiTextReader derived from AsciiTextReader ...
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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.