JavaScript - Math round Method

Description

This method returns the value of a number rounded to the nearest integer.

Syntax

Its syntax is as follows −

Math.round( x ) ;

Return Value

Returns the value of a number rounded to the nearest integer.

Example

Try the following example program.

Live Demo

<html>   
   <head>
      <title>JavaScript Math round() Method</title>
   </head>   
   <body>      
      <script type = "text/javascript">
         var value = Math.round( 0.5 );
         document.write("First Test Value : " + value ); 
         
         var value = Math.round( 20.7 );
         document.write("<br />Second Test Value : " + value ); 
         
         var value = Math.round( 20.3 );
         document.write("<br />Third Test Value : " + value ); 
         
         var value = Math.round( -20.3 );
         document.write("<br />Fourth Test Value : " + value ); 
      </script>   
   </body>
</html>

Output

First Test Value : 1
Second Test Value : 21
Third Test Value : 20
Fourth Test Value : -20

javascript_math_object.htm