is doing

when (boolean) {
    true -> ...
    false -> ... 
}

considered bad?

why not

if(boolean) … else …

well, that's what i've been doing most my life, but this looks very neat and explicit

I think

when

is better suited for multiple (>2) branches

"Prefer using if for binary conditions instead of when." https://github.com/yole/kotlin-style-guide/issues/11

@horse_badorties thanks, good read