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.

Return Value:

The absolute value of the number passed as a parameter. The below examples illustrate the Math abs( ) method in JavaScript:

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

console.log(Math.abs(2));
console.log(Math.abs(2.56));

2
2.56

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

console.log(Math.abs("Geeksforgeeks"));

NaN

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

console.log(Math.abs(7+9));        

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

• Chrome 51
• Edge 15
• Firefox 54
• Safari 10
• Opera 38