December 2014
Intermediate to advanced
346 pages
6h 14m
English
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Optimizing the application using equality $watch
Equality watches register a listener that uses angular.equals() as the comparator, which exhaustively examines the entirety of all objects to ensure that their respective object hierarchies are identical. Both a new object assignment and property modification will register as a change and invoke the watch callback.
This watcher should be used when any modification to an object is considered as a change event, such as a user object having its properties at various depths modified.
How to do it…
The equality comparator is used when the optional Boolean third argument is set to true. Other than that, these watchers are syntactically identical to reference comparator watchers, as shown here:
$scope.myObj ...
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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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