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flatMapIndexedTo

Platform and version requirements: JVM (1.4), JS (1.4), Native (1.4)
@JvmName("flatMapIndexedIterableTo") inline fun <T, R, C : MutableCollection<in R>> Sequence<T>.flatMapIndexedTo(
    destination: C, 
    transform: (index: Int, T) -> Iterable<R>
): C
@JvmName("flatMapIndexedSequenceTo") inline fun <T, R, C : MutableCollection<in R>> Sequence<T>.flatMapIndexedTo(
    destination: C, 
    transform: (index: Int, T) -> Sequence<R>
): C

Appends all elements yielded from results of transform function being invoked on each element and its index in the original sequence, to the given destination.

The operation is terminal.

© 2010–2020 JetBrains s.r.o. and Kotlin Programming Language contributors
Licensed under the Apache License, Version 2.0.
https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.sequences/flat-map-indexed-to.html