A stream will run with each new subscription added to it. This lesson shows the benefits of using share so that the same stream can be shared across multiple subscriptions.
Can we use do() instead of subscribe() to clear the text to simplify things?
Vincent De Snerck
'Do' definitely seems like a better solution for the problem. Double subscribe also seems to go against what was said in an earlier video where the entire working of the stream should be defined at declaration.
However it is an example of how and why you could share a stream.