kotlin-stdlib / kotlin.ranges / randomOrNull randomOrNull Common JVM JS Native 1.4 fun IntRange.randomOrNull(): Int?(source) fun LongRange.randomOrNull(): Long?(source) fun CharRange.randomOrNull(): Char?(source) fun UIntRange.randomOrNull(): UInt?(source) fun ULongRange.randomOrNull(): ULong?(source) Returns a random element from this range, or null if this range is empty. Common JVM JS Native 1.4 fun IntRange.randomOrNull(random: Random): Int?(source) fun LongRange.randomOrNull(random: Random): Long?(source) fun CharRange.randomOrNull(random: Random): Char?(source) fun UIntRange.randomOrNull(random: Random): UInt?(source) fun ULongRange.randomOrNull(random: Random): ULong?(source) Returns a random element from this range using the specified source of randomness, or null if this range is empty.