Kotlin Loops in Kotlin Looping over iterables
Example
You can loop over any iterable by using the standard for-loop:
val list = listOf("Hello", "World", "!")
for(str in list) {
print(str)
}
Lots of things in Kotlin are iterable, like number ranges:
for(i in 0..9) {
print(i)
}
If you need an index while iterating:
for((index, element) in iterable.withIndex()) {
print("$element at index $index")
}
There is also a functional approach to iterating included in the standard library, without apparent language constructs, using the forEach function:
iterable.forEach {
print(it.toString())
}
it in this example implicitly holds the current element, see Lambda Functions
