Rxjs conditional delay

Question

I want an observable to be delayed depending on its value. For example:

of(someBool).pipe(delay(1000))

skip delay when someBool is false, but wait a sec when it's true.

Answer 1

Note: In future versions, empty notifiers will no longer re-emit the source value on the output observable.

someBool$.pipe(
  delayWhen(val => val ? timer(1000) : timer(0))
)