How to add a condition to a for loop in Kotlin?-CodePudding

I know that in Java, it is possible to do the following:

boolean condition = true;

for(int i=0; i<array.length && condition; i  ){

}

If the condition is false, the for loop stops, but, how to do the same in Kotlin?

CodePudding user response：

You can also use the below approach for the conditional for loop.

(0..array.length).takeWhile {
    condition
}.forEach {
    // do something with `it (index)`
}

CodePudding user response：

there is no such option in Kotlin (availabe constructions in HERE), but you can add additional check and break keyword

for (i in 0..array.length) {
    if (!condition) break; // quit loop without further iteration
    //rest of code