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javascriptknockout.jsko.observablearray

Unsubscribe in Observable KnockOutJS

Im currently using KnockOut JS and i conducted some research about when the observable is notified it will fire a function which is like this 

function FunctionToSubscribe()
{

}

var TestObservable = ko.observableArray([]);

TestObservable.subscribe(FunctionToSubscribe);

i am subscribing FunctionToSubscribe in this event

im currently thinking is there a way to unsubscribe it? like we do in c#? when unsubscribing events anyone have an idea regarding this???

Solution

  • The subscribe function returns the "subscription" object which has a dispose method what you can use to unsubscribe:

    var TestObservable = ko.observableArray([]);

var subscription = TestObservable.subscribe(FunctionToSubscribe);

//call dispose when you want to unsubscribe
subscription.dispose();

    See also in the documentation: Explicitly subscribing to observables