arrays - Kotlin forEach 订单

Question

Kotlin forEach 是按数组的实际顺序遍历数组还是有时可能按其他顺序遍历数组？我的意思是这是否总是打印 1,2,3,...9 或者它可能会打印类似 1,5,3,4,...

val numbers: Array<Int> = array(1,2,3,4,5,6,7,8,9)
    numbers.forEach({(number: Int) ->
        Log.d(tag,number)
    })

Kotlin forEach reference

Answer 1

forEach从第一个元素到最后一个元素按顺序迭代；源代码:
Collections.kt

/**
 * Performs the given [action] on each element.
 */
@kotlin.internal.HidesMembers
public inline fun <T> Iterable<T>.forEach(action: (T) -> Unit): Unit {
    for (element in this) action(element)
}