JavaScript math ceil() method

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The JavaScript math ceil() method is used to get the smallest integer value, either greater than or equal to a number.
Syntax:

Math.ceil(n)

Parameters
n: It represents the number.

Returns
The smallest integer value which will be greater than or equal to the specified number.

Example:

<!DOCTYPE html>
<html>
<body>
<script>
document.writeln(Math.abs(-345));
</script>
</body>
</html>