JavaScript Math sqrt() Method

The JavaScript Math sqrt( ) Method in JavaScript is used to square the root of the number passed as a parameter to the function. 

Syntax:

Math.sqrt(value)

Parameters:

This method accepts a single parameter as mentioned above and described below: 

• Value: which holds the number whose square root is to be calculated.

Return Value:

The square root of the number is passed as a parameter.

Example 1: Below is an example of the Math sqrt() Method. 

console.log(Math.sqrt(-2));
console.log(Math.sqrt(-2.56));        

NaN
NaN

Example 2:

console.log(Math.sqrt(4));
console.log(Math.sqrt(256));        

2
16

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

We have a Cheat Sheet on Javascript where we covered all the important topics of Javascript to check those please go through Javascript Cheat Sheet-A Basic guide to JavaScript.