isNaN

Common
fun Double.isNaN(): Boolean
fun Float.isNaN(): Boolean
inline fun Double.isNaN(): Boolean
inline fun Float.isNaN(): Boolean
fun Double.isNaN(): Boolean
fun Float.isNaN(): Boolean
external fun Double.isNaN(): Boolean
external fun Float.isNaN(): Boolean

Returns true if the specified number is a Not-a-Number (NaN) value, false otherwise.