kotlin-stdlib / kotlin.text / matches matches Common JVM JS Native 1.0 infix fun CharSequence . matches ( regex : Regex ) : Boolean (source) Returns true if this char sequence matches the given regular expression. JS 1.1 @DeprecatedSinceKotlin ( "1.6" ) fun String . matches ( regex : String ) : Boolean (source) Deprecated: Use Regex.matches() instead