How to deal with floating point number precision in JavaScript?

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>

Output

28.7 29 28.675
Updated on: 2020-01-10T07:29:46+05:30

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