Edit Question - KnowledgeHub

Title Body

As far as I understand it, there is no way in Scala to have multiple return points in an anonymous function, i.e. someList.map((i) => { if (i%2 == 0) return i // the early return allows me to avoid the else clause doMoreStuffAndReturnSomething(i) // thing of this being a few more ifs and returns }) raises an error: return outside method definition . (And if it weren’t to raise that, the code would not work as I’d like it to work.) One workaround I could thing of would be the following someList.map({ def f(i: Int):Int = { if (i%2 == 0) return i doMoreStuffAndReturnSomething(i) } f }) however, I’d like to know if there is another ‘accepted’ way of doing this. Maybe a possibility to go without a name for the inner function? (A use case would be to emulate some valued continue construct inside the loop.) Edit Please believe me, that there is a need for avoiding the else statement, because, the doMoreStuff part might actually look like: val j = someCalculation(i) if (j == 0) return 8 val k = needForRecalculation(i) if (k == j) return 9 finalRecalc(i) ... which, when you only have an if – else structure available gets easily messed up. Of course, in the simple example I gave in the beginning, it is easier to just use else . Sorry, I thought this was clear.

Tags (comma-separated) Cancel