Check for NaN.
Examine the class of a number.
Examine the sign of a number.
Check for finity.
Check for infinity.
- Parameters
-
number | An arbitrary floating-point number. |
- Returns
- Boolean value indicating whether or not the number is a NaN.
- Parameters
-
number | An arbitrary floating-point number. |
- Returns
- 1 if positive infinity, -1 if negative infinity, 0 otherwise.
- Parameters
-
number | An arbitrary floating-point number. |
- Returns
- Boolean value indicating whether or not the number is a finite.
- Parameters
-
number | An arbitrary floating-point number. |
- Returns
- Boolean value indicating whether or not the number has the sign bit set (i.e. is negative).
- Parameters
-
number | An arbitrary floating-point number. |
- Returns
- Enumerable value indicating the class of
number