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filterTo

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

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

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