isNaN function
| Input type | Output type |
| float | bool |
This function returns true if its argument is the special not-a-number floating-point value NAN. Together with isInf, you can use isNaN to check if a floating-point value is still normal, which indicates that all previous operations on it were successful.
Examples:
float x = 1 / 0 print(x) ; Prints INF x = x - x print(x) ; Prints NAN print(x < 100) ; Prints true, but the values are not ordered print(isNaN(x)) ; Prints true
See Also
isInf function