Transforming in RxJS: interview exercises

Transforming in RxJS: 5 test-checked interview exercises (map and filter, A running total with scan), each beside a worked example, with tests as you go. Free.

1. map and filter
2. A running total with scan
3. Consecutive pairs
4. Batches with bufferCount
5. One answer at the end: reduce

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
• Filtering
• Timing
• Combining
• Flattening
• Errors & completion
• Subjects & sharing

All RxJS exercises · Other languages and frameworks