Kotlin skip loop iteration

Question

I am writing a Kotlin program and I want to skip an iteration of the loop. I know the continue keyword, that jumps to the next interation, but is there a way to elegantly jump to the second next iteration, skipping the next iteration? I would imagine the code to look like this:

for(i in 0 until 10){
    if(i == 5){
        skip
    }
    println(i)
}

with the result being this:

PS: I know how I could do it other ways, but I am asking if there is a very easy or kotlin-native way of doing this.

How is skip more elegant than continue aside from using a different word? — Pawel
– Pawel, Commented Jul 7, 2018 at 18:06
continue goes to the next iteration. skip would skip the next iteration and continue at the iteration after the next — Ian Rehwinkel
– Ian Rehwinkel, Commented Jul 7, 2018 at 18:07

score 3 · Accepted Answer · 2018-07-07 18:12:33Z

3

If you are interested in a for loop, then you can simplify it by using a range and a predicate that removes some values from the loop:

(0..9).filter { !(it in 5..6) }.forEach { println(it) }

here !(it in 5..6) is the predicate but you can build your own.

edited Jul 7, 2018 at 18:12

answered Jul 7, 2018 at 18:01

user8959091

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1 Comment

user8959091 Over a year ago

I always prefer ! before a parenthesis when possible because I think it's more readable. It's a matter of style.

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