The Math.ceil() method rounds a number upward to the nearest integer.
Example
You can try to the following code to round up a number −
Live Demo
<html>
<head>
<title>JavaScript Math ceil() Method</title>
</head>
<body>
<script>
var value = Math.ceil( 2.7 );
document.write("First Test Value : " + value );
var value = Math.ceil( 30.2 );
document.write("<br />Second Test Value : " + value );
</script>
</body>
</html>Output
First Test Value : 3 Second Test Value : 31