February 2019
Beginner
694 pages
18h 4m
English
Content preview from Mastering TypeScript 3 - Third Edition
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The Mediator class
The Mediator class is responsible for coordinating the overall application state, and the interactions between our various UI classes. As such, it really needs to have three key ingredients. Firstly, it needs to have the concrete implementation of the IMediatorImpl interface, so that it can call the various functions it needs to when the UI needs updating. We have just implemented the IMediatorImpl interface in our AppComponent class, so we will need to pass a reference to the AppComponent instance to the Mediator class.
Secondly, the Mediator class needs a concrete instance of each of our State classes, so that it can recreate both the current state of the application, as well as the desired next state. It can then compare ...
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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.
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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.