July 2015
Beginner
452 pages
8h 34m
English
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Loading classes on demand
When we develop large applications, performance is really important. We should only load the scripts we need; this means that if we have many modules in our application, we should separate them into packages so we would be able to load them individually.
Ext JS, since version 4, allows us to dynamically load classes and files when we need them, also we can configure dependencies in each class and the Ext library will load them for us.
You need to understand that using the loader is great for development, that way we can easily debug the code because the loader includes all the classes one by one. However, it's not recommended to load all the Ext classes in production environments. We should create packages of classes and ...
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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.