I'm searching for a way for components to receive notifications or subscribe to changes in a service variable.
Observables seem like an option, but I don't think they are suitable as they require completing the stream and I need continuous updates on the variable while the component is active.
Does anyone have a better suggestion for handling this scenario?
Have you ever experimented with Subject or any of its variations?
Here is an example using BehaviorSubject:
Service:
export class MyService {
myVariableSubject = new BehaviorSubject<number>(0);
increase() {
this.myVariableSubject.next(this.myVariableSubject.value + 1);
}
}
Component:
constructor(private myService: MyService) {}
ngOnInit() {
this.myService.myVariableSubject.subscribe((value: number) => console.log(value));
}
Please be cautious as this may not be the optimal solution for your specific problem (which remains unspecified).
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