Unsubscribe in Observable KnockOutJS

Question

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???

Answer 1

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

Answer 2

You can use dispose method.

function FunctionToSubscribe()
{

}

var TestObservable = ko.observableArray([]);

// subscribe
var subscriber = TestObservable.subscribe(FunctionToSubscribe);

// unsubscribe
subscriber.dispose();