Platform and version requirements: JVM (1.0), JS (1.0), Native (1.0)

inline fun CharSequence.filter(
    predicate: (Char) -> Boolean
): CharSequence

Returns a char sequence containing only those characters from the original char sequence that match the given predicate.

Platform and version requirements: JVM (1.0), JS (1.0), Native (1.0)

inline fun String.filter(
    predicate: (Char) -> Boolean
): String

Returns a string containing only those characters from the original string that match the given predicate.