JavaScript Math abs() Method

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 arithmetic 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