(I'm using Angular 1)
I have an array of complex objects. I have a watch bound to something like this:
myArray[objectId].propArr.length
if the object myArray[objectId] is deleted, what happens to the watch? Will I need to manually unbind it? Will it automagically get cleaned up since the object no longer exists?
Posted Apr 29, 2019, 5:53 PM UTC
You only need to manually unbind when watching on $rootScope actually. If you create a watch on the local $scope of a component/controller, the watches are automatically removed when the component/controller is destroyed, i.e. when $scope.$on('$destroy') fires.
(Watches are not unbound when the array/object pointing to it is unreferenced though. Hence the need to unbind manually, but only if you're using $rootScope)
Thank you, this helps a lot!
[removed]
I’m on my phone on a fishing trip a few beers in, but I think this is what you want. The result of a scope watch is a function that can unwind the watcher. Cheers!
var unregister = $scope.watch(‘prop’, function () {
If(something) { unregister(); }
});
Thanks, you saved me a stackOverflow lookup :) I hope the fish are/were biting...
Ill be having salmon for weeks, glad I could help 😉