fun CharSequence.first(): Char
Returns first character.
NoSuchElementException - if the char sequence is empty.
inline fun CharSequence.first( predicate: (Char) -> Boolean ): Char
Returns the first character matching the given predicate.
NoSuchElementException - if no such character is found.
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Licensed under the Apache License, Version 2.0.
https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.text/first.html