[RxJS] Get current value out of Subject (BehaviorSubject)
When you want to get the current value of a subject, you need to switch BehaviorSubject, it always emit the latest value or throw error.
Then you can call 'getValue()':
var subject = new Rx.BehaviorSubject(56); console.log('Value is: ' + subject.getValue()); // => Value is: 56 subject.onNext(42); console.log('Value is: ' + subject.getValue()); // => Value is: 42 subject.onCompleted(); subject.onNext(100); console.log('Value is frozen: ' + subject.getValue()); // => Value is frozen: 42 subject.dispose(); try { subject.getValue(); } catch (e) { console.log(e.message); } // => Object has been disposed