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.

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