I have an observable that emits Timers. I also have an observable that emits Ints. How can I combine them such that an Int will be emitted followed by the timer? i.e. given an array of ints [1,2,3] and timers [2s, 4s, 3s] 1 (then wait 2 s) 2 (then wait 4 s) 3 (then wait 3 s)

Can you use

zip

?

It seems that zip cannot achieve the example because the BiFunction must wait for both emissions to complete to produce a new type of emission.