I have a publish relay which emits items regularly, I just want to get the last tow items each time ...

# rx

[Mohamed Ibrahim]

I have a publish relay which emits items regularly, I just want to get the last tow items each time it emits, the case is to evaluate UI state according to previous and current emissions

[Mohamed Ibrahim]

I solved it using buffer(count)

[gsala]

If you buffer the stream you don't get the items every time it emits, only when the buffer is full. I think you need something like window or accumulate the state through scan

[Mohamed Ibrahim]

For that I used startWith default value