kotlin-stdlib / kotlin.collections / forEach

forEach

Common
JVM
JS
Native
1.0
inline fun <T> Array<out T>.forEach(action: (T) -> Unit)
inline fun ByteArray.forEach(action: (Byte) -> Unit)
inline fun ShortArray.forEach(action: (Short) -> Unit)
inline fun IntArray.forEach(action: (Int) -> Unit)
inline fun LongArray.forEach(action: (Long) -> Unit)
inline fun FloatArray.forEach(action: (Float) -> Unit)
inline fun DoubleArray.forEach(action: (Double) -> Unit)
inline fun BooleanArray.forEach(action: (Boolean) -> Unit)
inline fun CharArray.forEach(action: (Char) -> Unit)
inline fun <T> Iterable<T>.forEach(action: (T) -> Unit)
@ExperimentalUnsignedTypes inline fun UIntArray.forEach(
    action: (UInt) -> Unit)
@ExperimentalUnsignedTypes inline fun ULongArray.forEach(
    action: (ULong) -> Unit)
@ExperimentalUnsignedTypes inline fun UByteArray.forEach(
    action: (UByte) -> Unit)
@ExperimentalUnsignedTypes inline fun UShortArray.forEach(
    action: (UShort) -> Unit)

Performs the given action on each element.

Common
JVM
JS
Native
1.0
inline fun <K, V> Map<out K, V>.forEach(
    action: (Entry<K, V>) -> Unit)

Performs the given action on each entry.

Common
JVM
JS
Native
1.0
inline fun <T> Iterator<T>.forEach(operation: (T) -> Unit)

Performs the given operation on each element of this Iterator.

import java.util.*

fun main(args: Array<String>) {
//sampleStart
val iterator = (1..3).iterator()
// skip an element
if (iterator.hasNext()) {
    iterator.next()
}

// do something with the rest of elements
iterator.forEach {
    println("The element is $it")
}
//sampleEnd
}