I want to re-emit the last value of a BehaviourSubject to the existing subscriptions. I tried last(), publishlast(), share(), refcount(). But it doesn't trigger the existing subscriptions again with the last emitted value.

I want to re-emit the last value of a BehaviourSubject to the existing subscriptions. I tried last(), publishlast(), share(), refcount(). But it doesn't trigger the existing subscriptions again with the last emitted value.

• javascript
• rxjs
• angular2-observables
• behaviorsubject

Share Improve this question Follow edited Mar 5, 2018 at 8:12 jonrsharpe 122k3030 gold badges268268 silver badges476476 bronze badges asked Mar 4, 2018 at 22:24 codermancoderman 1,51433 gold badges2323 silver badges3535 bronze badges 3

• this.subject.take(1).subscribe(item => this.subject.next(item))? But why do you need to do this; what's the context? – jonrsharpe Commented Mar 4, 2018 at 22:27
• This looks like it is setting up the subscriber. I want the subject to re-emit the last value. – coderman Commented Mar 4, 2018 at 22:46
• It does, and that is what it does. It will take one value, a replay of the last value, and push it back into the subject to get re-emitted. – jonrsharpe Commented Mar 5, 2018 at 8:11

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Sorted by: Reset to default 5

If sub is your BehaviorSubject, this would work:

sub.next(sub.value)