March 2017
Intermediate to advanced
821 pages
18h 21m
English
Content preview from JavaScript: Moving to ES2015Become 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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Angular 2 change detection
Change detection is the process of detecting component state change. The state of a component is stored and manipulated using the this keyword. Therefore, there is no direct way for Angular 2 to detect when the state changes. So, Angular 2 uses complex algorithms and third-party libraries to detect state changes.
The first thing Angular 2 does for detecting state changes is that it pretends that all the changes happen asynchronously. Then, it uses the zone.js library to monitor browser events, timers, AJAX requests, WebSockets, and other asynchronous things that are supported by zone.js.
Now, whenever any of these asynchronous activities takes place, it checks everything that could change, including object properties ...
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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.