plus

Common
JVM
Native
1.0
operator fun <T> Array<T>.plus(element: T): Array<T>
JS
1.1
operator fun <T> Array<out T>.plus(element: T): Array<T>
Common
JVM
JS
Native
1.0
operator fun ByteArray.plus(element: Byte): ByteArray
Common
JVM
JS
Native
1.0
operator fun ShortArray.plus(element: Short): ShortArray
Common
JVM
JS
Native
1.0
operator fun IntArray.plus(element: Int): IntArray
Common
JVM
JS
Native
1.0
operator fun LongArray.plus(element: Long): LongArray
Common
JVM
JS
Native
1.0
operator fun FloatArray.plus(element: Float): FloatArray
Common
JVM
JS
Native
1.0
operator fun DoubleArray.plus(element: Double): DoubleArray
Common
JVM
JS
Native
1.0
operator fun BooleanArray.plus(
    element: Boolean
): BooleanArray
Common
JVM
JS
Native
1.0
operator fun CharArray.plus(element: Char): CharArray

Returns an array containing all elements of the original array and then the given element.

Common
JVM
Native
1.0
operator fun <T> Array<T>.plus(
    elements: Collection<T>
): Array<T>
JS
1.1
operator fun <T> Array<out T>.plus(
    elements: Collection<T>
): Array<T>
Common
JVM
JS
Native
1.0
operator fun ByteArray.plus(
    elements: Collection<Byte>
): ByteArray
Common
JVM
JS
Native
1.0
operator fun ShortArray.plus(
    elements: Collection<Short>
): ShortArray
Common
JVM
JS
Native
1.0
operator fun IntArray.plus(
    elements: Collection<Int>
): IntArray
Common
JVM
JS
Native
1.0
operator fun LongArray.plus(
    elements: Collection<Long>
): LongArray
Common
JVM
JS
Native
1.0
operator fun FloatArray.plus(
    elements: Collection<Float>
): FloatArray
Common
JVM
JS
Native
1.0
operator fun DoubleArray.plus(
    elements: Collection<Double>
): DoubleArray
Common
JVM
JS
Native
1.0
operator fun BooleanArray.plus(
    elements: Collection<Boolean>
): BooleanArray
Common
JVM
JS
Native
1.0
operator fun CharArray.plus(
    elements: Collection<Char>
): CharArray

Returns an array containing all elements of the original array and then all elements of the given elements collection.

Common
JVM
Native
1.0
operator fun <T> Array<T>.plus(
    elements: Array<out T>
): Array<T>
JS
1.1
operator fun <T> Array<out T>.plus(
    elements: Array<out T>
): Array<T>
Common
JVM
JS
Native
1.0
operator fun ByteArray.plus(elements: ByteArray): ByteArray
Common
JVM
JS
Native
1.0
operator fun ShortArray.plus(
    elements: ShortArray
): ShortArray
Common
JVM
JS
Native
1.0
operator fun IntArray.plus(elements: IntArray): IntArray
Common
JVM
JS
Native
1.0
operator fun LongArray.plus(elements: LongArray): LongArray
Common
JVM
JS
Native
1.0
operator fun FloatArray.plus(
    elements: FloatArray
): FloatArray
Common
JVM
JS
Native
1.0
operator fun DoubleArray.plus(
    elements: DoubleArray
): DoubleArray
Common
JVM
JS
Native
1.0
operator fun BooleanArray.plus(
    elements: BooleanArray
): BooleanArray
Common
JVM
JS
Native
1.0
operator fun CharArray.plus(elements: CharArray): CharArray

Returns an array containing all elements of the original array and then all elements of the given elements array.

Common
JVM
JS
Native
1.0
operator fun <T> Iterable<T>.plus(element: T): List<T>
operator fun <T> Collection<T>.plus(element: T): List<T>

Returns a list containing all elements of the original collection and then the given element.

Common
JVM
JS
Native
1.0
operator fun <T> Iterable<T>.plus(
    elements: Array<out T>
): List<T>
operator fun <T> Collection<T>.plus(
    elements: Array<out T>
): List<T>

Returns a list containing all elements of the original collection and then all elements of the given elements array.

Common
JVM
JS
Native
1.0
operator fun <T> Iterable<T>.plus(
    elements: Iterable<T>
): List<T>
operator fun <T> Collection<T>.plus(
    elements: Iterable<T>
): List<T>

Returns a list containing all elements of the original collection and then all elements of the given elements collection.

Common
JVM
JS
Native
1.0
operator fun <T> Iterable<T>.plus(
    elements: Sequence<T>
): List<T>
operator fun <T> Collection<T>.plus(
    elements: Sequence<T>
): List<T>

Returns a list containing all elements of the original collection and then all elements of the given elements sequence.

Common
JVM
JS
Native
1.0
operator fun <T> Set<T>.plus(element: T): Set<T>

Returns a set containing all elements of the original set and then the given element if it isn't already in this set.

The returned set preserves the element iteration order of the original set.

Common
JVM
JS
Native
1.0
operator fun <T> Set<T>.plus(elements: Array<out T>): Set<T>

Returns a set containing all elements of the original set and the given elements array, which aren't already in this set.

The returned set preserves the element iteration order of the original set.

Common
JVM
JS
Native
1.0
operator fun <T> Set<T>.plus(elements: Iterable<T>): Set<T>

Returns a set containing all elements of the original set and the given elements collection, which aren't already in this set. The returned set preserves the element iteration order of the original set.

Common
JVM
JS
Native
1.0
operator fun <T> Set<T>.plus(elements: Sequence<T>): Set<T>

Returns a set containing all elements of the original set and the given elements sequence, which aren't already in this set.

The returned set preserves the element iteration order of the original set.

Common
JVM
JS
Native
1.0
operator fun <K, V> Map<out K, V>.plus(
    pair: Pair<K, V>
): Map<K, V>

Creates a new read-only map by replacing or adding an entry to this map from a given key-value pair.

The returned map preserves the entry iteration order of the original map. The pair is iterated in the end if it has a unique key.

Common
JVM
JS
Native
1.0
operator fun <K, V> Map<out K, V>.plus(
    pairs: Iterable<Pair<K, V>>
): Map<K, V>

Creates a new read-only map by replacing or adding entries to this map from a given collection of key-value pairs.

The returned map preserves the entry iteration order of the original map. Those pairs with unique keys are iterated in the end in the order of pairs collection.

Common
JVM
JS
Native
1.0
operator fun <K, V> Map<out K, V>.plus(
    pairs: Array<out Pair<K, V>>
): Map<K, V>

Creates a new read-only map by replacing or adding entries to this map from a given array of key-value pairs.

The returned map preserves the entry iteration order of the original map. Those pairs with unique keys are iterated in the end in the order of pairs array.

Common
JVM
JS
Native
1.0
operator fun <K, V> Map<out K, V>.plus(
    pairs: Sequence<Pair<K, V>>
): Map<K, V>

Creates a new read-only map by replacing or adding entries to this map from a given sequence of key-value pairs.

The returned map preserves the entry iteration order of the original map. Those pairs with unique keys are iterated in the end in the order of pairs sequence.

Common
JVM
JS
Native
1.0
operator fun <K, V> Map<out K, V>.plus(
    map: Map<out K, V>
): Map<K, V>

Creates a new read-only map by replacing or adding entries to this map from another map.

The returned map preserves the entry iteration order of the original map. Those entries of another map that are missing in this map are iterated in the end in the order of that map.