isIdentifierIgnorable
Returns true if this character (Unicode code point) should be regarded as an ignorable character in a Java identifier or a Unicode identifier.
inline fun Char.isIdentifierIgnorable(): Boolean(source)
fun main() {
val example = "Kotlin\u200BCode" // \u200B is a zero‑width space (ignorable)
val ignorableChars = example.filter { it.isIdentifierIgnorable() }
println("Ignorable characters: $ignorableChars")
}