JavaScript Math abs( ) Method
Below is the example of the Math abs() method.
- Example:
<script type="text/javascript">document.write(Math.abs(-2)+"<br>");document.write(Math.abs(-2.56));</script> - Output:
2 2.56
The Math.abs() method is used to return the absolute value of a number. It takes a number as its parameter and returns its absolute value.
Syntax:
Math.abs(value)
Parameters: This method accepts a single parameter as mentioned above and described below:
- value: The number whose absolute value is to be found is passed as the parameter to this function.
Returns: Absolute value of the number passed as parameter.
Below examples illustrate the Math abs( ) method in JavaScript:
- Example 1:
Input : Math.abs(-4) Output : 4
- Example 2:
Input : Math.abs(0) Output : 0
Errors and Exceptions:
- A non-numeric string passed as parameter returns NaN.
- An array with more than 1 integer passed as parameter returns NaN.
- An empty variable passed as parameter returns NaN.
- An empty string passed as parameter returns 0.
- An empty array passed as parameter returns 0.
More example codes for the above method are as follows:
Program 1:
<!-- POSITIVE NUMBER EXAMPLE --><script type="text/javascript"> document.write(Math.abs(2)+"<br>"); document.write(Math.abs(2.56)); </script> |
Output:
2 2.56
Program 2:
<!-- STRING EXAMPLE --><script type="text/javascript"> document.write(Math.abs("Geeksforgeeks")); </script> |
Output:
NaN
Program 3:
<!-- ADDITION INSIDE FUNCTION EXAMPLE --><script type="text/javascript"> document.write(Math.abs(7+9)); </script> |
Output:
16
Supported Browsers:
- Google Chrome 1 and above
- Internet Explorer 3 and above
- Firefox 1 and above
- Opera 3 and above
- Safari 1 and above
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