kotlin-stdlib / kotlin.text / single

single

Common
JVM
JS
Native
1.0
fun CharSequence.single(): Char
(source)

Returns the single character, or throws an exception if the char sequence is empty or has more than one character.

Common
JVM
JS
Native
1.0
inline fun CharSequence.single(
    predicate: (Char) -> Boolean
): Char
(source)

Returns the single character matching the given predicate, or throws exception if there is no or more than one matching character.