[Feature request] Add takeUntil operator

[LouisCAD]

takeUntil { … } would be almost the same as takeWhile { … }, but once the predicate evaluates to true, the last value (where the predicate evaluated to true) still passes through, and the upstream flow is then immediately cancelled.

[pacher]

Already implemented and released here #2065

[LouisCAD]

Thanks for pointing that, it's written very clearly why there's no such named operator. In the meantime I had found transforWhile, and it's not so bad. I think I'll use a semicolon to cut down 3 lines of code.