In this lecture you will learn, how to unsubscribe to an observable. We have learned that an observable emits some data. Now, there are some observables which emits data indefinitely. For suct kind of observables, we need to unsubscribe to them explicitely.
If we dont unsubscribe to these observables, then they will keep on emitting the data indefinitely and at some point of time our memory will run out of space. So, in this lecture, lets learn how you can unsubscribe to an Observable.