How to deal with floating point number precision in JavaScript?

Javascript Web Development Front End Technology

To handle floating point number precision in JavaScript, use the toPrecision() method. It helps to format a number to a length you can specify.

Example

Live Demo

<!DOCTYPE html>
<html>
   <body>
      <script>
         var num = 28.6754;
         document.write(num.toPrecision(3));
         document.write("<br>"+num.toPrecision(2));
         document.write("<br>"+num.toPrecision(5));
      </script>
   </body>
</html>