kotlin-stdlib / kotlin.ranges / first first Common JVM JS Native 1.7 fun IntProgression.first(): Int(source) fun LongProgression.first(): Long(source) fun CharProgression.first(): Char(source) fun UIntProgression.first(): UInt(source) fun ULongProgression.first(): ULong(source) Returns the first element. Exceptions NoSuchElementException - if the progression is empty.