Real-life: pairwise() latency diff

From neighboring timestamps, compute the difference between events.

1. Solve the task in the editor — no long theory.
2. Run the check and compare your output with the expected result.
3. Stuck? Open the solution and carry the approach into your own code.

const { from, pairwise, map } = Rx;

const timestamps = [100, 180, 260];

const result$ = from(timestamps).pipe(
  pairwise(),
  map(([prev, next]) => next - prev)
);

result$.subscribe(value => console.log(value));