Subjects & sharing in RxJS: interview exercises

Subjects & sharing in RxJS: 5 test-checked interview exercises (A Subject as an event bus), each beside a worked example, with tests as you go. Free.

1. A Subject as an event bus
2. State with a BehaviorSubject
3. The last few, for latecomers
4. One source, many subscribers
5. A custom operator

Each exercise pairs a worked example with a twin problem to solve in a real editor; the tests run the moment you do. Progress is saved in your browser, and in your account if you sign in.

More RxJS topics

• Creating observables
• Transforming
• Filtering
• Timing
• Combining
• Flattening
• Errors & completion

All RxJS exercises · Other languages and frameworks