$scope, remove listener

[kostik.noir]

Hi.
I'm new in angular.
There is $on method of scope which allow to add event listeners. But I'm not find way how to remove listener. Google was not help too.
Thanks.

[Pawel Kozlowski]

Hi!

There is no method for un-registering those listeners. Those will be
automatically destroyed when a corresponding scope is destroyed.
Please note that those listener are AngularJS-specific communication
bus and has nothing to do with DOM events and their listeners.

Cheers,
Pawel

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[Peter Bacon Darwin]

Actually that is not strictly true.  In the docs - http://docs.angularjs.org/api/ng.$rootScope.Scope#$on - you can see that $on returns a "deregistration" function.  So you can do things like:

var removeListener = scope.$on('some-event', function handler(event) { ... });

...

removeListener();

And voila!  It is gone.

[Pawel Kozlowski]

Holly cow! Didn't know this (and didn't check!!!).
Thnx Peter!

Cheers,
Pawel

[Константин Чёрный]

Thanks

[Jonathan Matthew Beck]

See this too:
http://stackoverflow.com/questions/14898296/how-to-unsubscribe-to-a-broadcast-event-in-angularjs-how-to-remove-function-reg

Simple and elegant.

[Alex Ford]

Thanks for this! :)