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JavaScript floor() Method

Math Object Reference JavaScript Math Object

Definition and Usage

The floor() method returns the value of a number rounded DOWNWARDS to the nearest integer.

Syntax

Math.floor(x)

Parameter Description
x Required. A number

Example

Example

Use the floor() method on different numbers:

<script type="text/javascript">

document.write(Math.floor(0.60) + "<br />");
document.write(Math.floor(0.40) + "<br />");
document.write(Math.floor(5) + "<br />");
document.write(Math.floor(5.1) + "<br />");
document.write(Math.floor(-5.1) + "<br />");
document.write(Math.floor(-5.9));

</script>

The output of the code above will be:

0
0
5
5
-6
-6

Try it yourself »

Math Object Reference JavaScript Math Object

From http://www.w3schools.com (Copyright Refsnes Data)