var firstMatchValue = -1
val array1 = arrayOf(1, 2, 3)
val array2 = arrayOf(2, 3, 4)
firstLoop@ for (value1 in array1) {
for (value2 in array2) {
if (value1 == value2) {
firstMatchValue = value2
break@firstLoop
}
}
}
//firstMatchValue is 2
println(firstMatchValue)