How to get current value of RxJS Subject or Observable?

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A Subject or Observable doesn’t have a current value. When a value is emitted, it is passed to subscribers and the Observable is done with it.

If you want to have a current value, use BehaviorSubject which is designed for exactly that purpose. BehaviorSubject keeps the last emitted value and emits it immediately to new subscribers.

It also has a method getValue() to get the current value.

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