Delete/Discard the last data value from an Observable in RxJava

Question

I got stuck in a situation where I need to discard or delete the last data from an Observable stream, been trying for a while but can't seem to find a solution. I know you can use Async Subject to get the last item but I actually need to do totally opposite of it. Any hints will be helpful

Answer 1

According to documentation, you can use Observable.skipLast() to solve that problem. It can take number of items to skip and produces Observable , that don't emits that particular number of last items.

More information you can find in RxJava docs and reactive specification