How to get the square root of a number in JavaScript?

JavascriptWeb DevelopmentFront End Technology

To get the square root, use the Math.sqrt() method. This method returns the square root of a number. If the value of a number is negative, sqrt returns NaN.

Example

You can try to run the following code to get the square root of a number −

<html>
   <head>
      <title>JavaScript Math sqrt() Method</title>
   </head>
   <body>
      <script>
         var value = Math.sqrt( 0.5 );
         document.write("First Value : " + value );

         var value = Math.sqrt( 49 );
         document.write("<br />Second Value : " + value );
      </script>
   </body>
</html>
raja
Published on 16-Feb-2018 11:52:27
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