Math Round Function

Math Function Round

Method: Round()
The round() method of the Math object to round a number to the nearest integer.

Example

<script type="text/javascript">
document.write("3.14259 is rounded to " +Math.round(3.14259));
document.write("<br />");
document.write("3.51259 is rounded to " +Math.round(3.51259));
document.write("<br />");
document.write("4.5 is rounded to " +Math.round(4.5));
document.write("<br />");
document.write("4.49 is rounded to " +Math.round(4.49));
document.write("<br />");
document.write("-5.89 is rounded to " +Math.round(-5.89));
document.write("<br />");
document.write("-5.5 is rounded to " +Math.round(-5.5));
</script>

Here ‘Math’ is object and ‘round’ is function.

The browser will show the following:
3.14259 is rounded to 3
3.51259 is rounded to 4
4.5 is rounded to 5
4.49 is rounded to 4
-5.89 is rounded to -6
-5.5 is rounded to -5

Click the buttons below and see what outputs give.