December 2014
Intermediate to advanced
346 pages
6h 14m
English
Content preview from AngularJS Web application development CookbookBecome 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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Optimizing the application with the compile phase in ng-repeat
An extremely common pattern in an AngularJS application is to have an ng-repeat directive instance spit out a list of child directives corresponding to an enumerable collection. This pattern can obviously lead to performance problems at scale, especially as directive complexity increases. One of the best ways to curb directive processing bloat is to eliminate any processing redundancy by migrating it to the compile phase.
Getting ready
Suppose that your application contains the following pseudo-setup. This is what we need for the next section:
(index.html) <div ng-repeat="element in largeCollection"> <span my-directive></span> </div> (app.js) angular.module('myApp', []) .directive('myDirective', ...Become 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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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.