Category: Number function
This function determines whether number is positive, negative, or zero. If positive the value 1 is returned. If negative, the value -1 is returned. If number is 0, then 0 is returned.
| Argument | Type | Description |
|---|---|---|
| number | Number | The value being tested as positive, negative or zero. |
Return value type: Number (1, -1, or 0)
An expression that results in a numeric answer can be used as the number argument. In this case, the result of the expression is tested.
sign(27) //Returns 1
sign(-42) //Returns -1
sign(0) //Returns 0
sign(14*-3) //Returns -1
sign(88 * 0) //Returns 0
sign(12 * 3) //Returns 1