It internally creates a ReplaySubject and makes it multicast compatible. The minimal replay value of ReplaySubject is 1 emission. This results in the following:
First subscription will trigger the publishReplay(1) to internally subscribe to the source stream and pipe all emissions through the Rep...
Based on a question. The following snippets Does not cache the expected emission and prevents further calls. Instead it re-subscribes to the realSource for every subscription.
var state = 5
var realSource = Rx.Observable.create(observer => {
console.log("creating expensive HTTP-based emis...
