Here, the “Math.sign()” method accepts the “number” as an argument and returns a value that represents its sign.
Valid values arguments for Math.sign() method: Numeric string, Floating-point number, Integer
Invalid values arguments for Math.sign() method: Empty variable, Non-numeric string.
The below-given section will answer the stated question!
A Comparison operator can be utilized when you only want to check the boolean status of a number. For instance, in the below-given example, we will validate if the value of the constant “number” is greater than “0” or not, with the help of the Greater than “>” Comparison operator:
number > 0;
Above-program will output “true” as the specified value “8” is “positive” and greater than “0”:
Whereas the “Math.sign()” method returns a “number” value that represents a “number” value that can be used to perform further mathematical calculations:
So, it is preferred to use the “Math.sign()” method over the Comparison operators when it is required to check the sign of a number, and you have to utilize the resultant value in some other operation.
For instance, we have passed “4” to the “Math.sign()” method:
The execution of the above-given “Math.sign()” method will return “1,” which indicates that “4” is a positive number:
The returned value signifies that the passed number is “negative”:
If you have passed a “non-numeric” value to the “Math.sign()” method, then it will return “NaN” (Not a Number):
As in the above statement, a “linuxhint” string is passed, so the resultant case of the “Math.sign()” method will be set to “NaN”:
Passing positive zero as an argument to the “Math.sign()” method will print out “0” value:
After checking the above-given output, have you thought about why we need a negative zero?