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JavaScript Math abs() Method

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  • Difficulty Level : Hard
  • Last Updated : 30 Dec, 2022
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The Javascript 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 a parameter. The below examples illustrate the Math abs( ) method in JavaScript:

Below is an example of the Math abs() method.

Example 1: This example shows the use of the Math.abs() method in javascript.

JavaScript




<!-- POSITIVE NUMBER EXAMPLE -->
<script type="text/javascript">
    console.log(Math.abs(2)+"<br>");
    console.log(Math.abs(2.56));        
</script>

Output:

2
2.56

Example 2: This example shows the return value of Math.abs() method when the parameter is a string value.

JavaScript




<!-- STRING EXAMPLE -->
<script type="text/javascript">
    console.log(Math.abs("Geeksforgeeks"));        
</script>

Output:

NaN

Example 3: This example shows the return value of Math.abs() method when the parameter is a arithematic expression.

JavaScript




<!-- ADDITION INSIDE FUNCTION EXAMPLE -->
<script type="text/javascript">
    console.log(Math.abs(7+9));        
</script>

Output:

16

Errors and Exceptions:

  • A non-numeric string passed as a parameter returns NaN.
  • An array with more than 1 integer passed as a parameter returns NaN.
  • An empty variable passed as a parameter returns NaN.
  • An empty string passed as a parameter returns 0.
  • An empty array passed as a parameter returns 0.

We have a complete list of Javascript Math Objects methods, to check those please go through this Javascript Math Object Complete reference article.

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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