kotlin-stdlib/kotlin.collections/MutableIterable

MutableIterable

interface MutableIterable<out T> : Iterable<T> (source)

Classes that inherit from this interface can be represented as a sequence of elements that can be iterated over and that supports removing elements during iteration.

Since Kotlin

1.0

Parameters

the type of element being iterated over. The mutable iterator is invariant in its element type.

Inheritors

MutableCollection

interface MutableIterable<out T> : Iterable<T> (source)

Classes that inherit from this interface can be represented as a sequence of elements that can be iterated over and that supports removing elements during iteration.

Since Kotlin

1.3

Parameters

the type of element being iterated over. The mutable iterator is invariant in its element type.

Inheritors

MutableCollection

Functions

all

inline fun <T> Iterable<T>.all(predicate: (T) -> Boolean): Boolean

Returns true if all elements match the given predicate.

Since Kotlin 1.0

any

fun <T> Iterable<T>.any(): Boolean

Returns true if collection has at least one element.

Since Kotlin 1.0

inline fun <T> Iterable<T>.any(predicate: (T) -> Boolean): Boolean

Returns true if at least one element matches the given predicate.

Since Kotlin 1.0

asIterable

inline fun <T> Iterable<T>.asIterable(): Iterable<T>

Returns this collection as an Iterable.

Since Kotlin 1.0

asSequence

fun <T> Iterable<T>.asSequence(): Sequence<T>

Creates a Sequence instance that wraps the original collection returning its elements when being iterated.

Since Kotlin 1.0

associate

inline fun <T, K, V> Iterable<T>.associate(transform: (T) -> Pair<K, V>): Map<K, V>

Returns a Map containing key-value pairs provided by transform function applied to elements of the given collection.

Since Kotlin 1.0

associateBy

inline fun <T, K> Iterable<T>.associateBy(keySelector: (T) -> K): Map<K, T>

Returns a Map containing the elements from the given collection indexed by the key returned from keySelector function applied to each element.

Since Kotlin 1.0

inline fun <T, K, V> Iterable<T>.associateBy(keySelector: (T) -> K, valueTransform: (T) -> V): Map<K, V>

Returns a Map containing the values provided by valueTransform and indexed by keySelector functions applied to elements of the given collection.

Since Kotlin 1.0

associateByTo

inline fun <T, K, M : MutableMap<in K, in T>> Iterable<T>.associateByTo(destination: M, keySelector: (T) -> K): M

Populates and returns the destination mutable map with key-value pairs, where key is provided by the keySelector function applied to each element of the given collection and value is the element itself.

Since Kotlin 1.0

inline fun <T, K, V, M : MutableMap<in K, in V>> Iterable<T>.associateByTo(destination: M, keySelector: (T) -> K, valueTransform: (T) -> V): M

Populates and returns the destination mutable map with key-value pairs, where key is provided by the keySelector function and and value is provided by the valueTransform function applied to elements of the given collection.

Since Kotlin 1.0

associateTo

inline fun <T, K, V, M : MutableMap<in K, in V>> Iterable<T>.associateTo(destination: M, transform: (T) -> Pair<K, V>): M

Populates and returns the destination mutable map with key-value pairs provided by transform function applied to each element of the given collection.

Since Kotlin 1.0

associateWith

inline fun <K, V> Iterable<K>.associateWith(valueSelector: (K) -> V): Map<K, V>

Returns a Map where keys are elements from the given collection and values are produced by the valueSelector function applied to each element.

Since Kotlin 1.3

associateWithTo

inline fun <K, V, M : MutableMap<in K, in V>> Iterable<K>.associateWithTo(destination: M, valueSelector: (K) -> V): M

Populates and returns the destination mutable map with key-value pairs for each element of the given collection, where key is the element itself and value is provided by the valueSelector function applied to that key.

Since Kotlin 1.3

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