Where key is provided by the keySelector function applied to each element of the given collectionĪnd value is the element itself.

Populates and returns the destination mutable map with key-value pairs, associateBy ( keySelector : ( T ) -> K, valueTransform : ( T ) -> V ) : Map Returns a Map containing the values provided by valueTransform and indexed by keySelector functions applied to elements of the given collection. associateBy ( keySelector : ( T ) -> K ) : Map Returned from keySelector function applied to each element. Returns a Map containing the elements from the given collection indexed by the key associate ( transform : ( T ) -> Pair ) : Map Returns a Map containing key-value pairs provided by transform functionĪpplied to elements of the given collection. any ( predicate : ( T ) -> Boolean ) : BooleanĬreates a Sequence instance that wraps the original collection returning its elements when being iterated. Returns true if at least one element matches the given predicate. Returns true if collection has at least one element. all ( predicate : ( T ) -> Boolean ) : Boolean Returns true if all elements match the given predicate. This is the equivalent of. - kmongo kmongo / llections / Extensions for all In this example, we will see how to stop the execution in the current loop and move back the compiler execution to the caller function. Example: Return at labels :: directly to the caller In this example, we will see how to do it. In Kotlin, we cannot explicitly use break and continue statements explicitly inside a forEach loop, but we can simulate the same action. In this article, we will see how break and continue work in Kotliln.īreak - This is a keyword that helps in terminating an iteration, once a given condition is met, while traversing through a collection.Ĭontinue - This keyword helps to continue the iteration once a condition is fulfilled. In Kotlin, we have three types of structural jump expressions: ' break',

Foreach kotlin index