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filterIndexedTo

Platform and version requirements: JVM (1.0), JS (1.0), Native (1.0)
inline fun <C : Appendable> CharSequence.filterIndexedTo(
    destination: C, 
    predicate: (index: Int, Char) -> Boolean
): C

Appends all characters matching the given predicate to the given destination.

Parameters

predicate - function that takes the index of a character and the character itself and returns the result of predicate evaluation on the character.

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Licensed under the Apache License, Version 2.0.
https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.text/filter-indexed-to.html