The JavaScript Math.sign() returns whether a number is negative, positive or zero.
Syntax:
Math.sign(number)Note:
If the number is positive, this method returns 1.
If the number is negative, it returns -1.
If the number is zero, it returns 0.
If the number is not a number, it returns NaN.
Example:
<!DOCTYPE html>
<html>
<body>
<p id="example"></p>
<script>
let a = Math.sign(2);
let b = Math.sign(-2);
let c = Math.sign(0);
let d = Math.sign();
document.getElementById("example").innerHTML =
a + "<br>" + b + "<br>" + c + "<br>" + d;
</script>
</body>
</html>Output:
JavaScript Math.sign() returns whether a number is negative, positive or zero:
Note: JavaScript Math.sign() is not supported in Internet Explorer.
Enjoy coding!
Read also:
JavaScript Math.floor() Method
JavaScript Math Object Properties