JavaScript floor() Method

Math Object Reference JavaScript Math Object

Example

Round a number downward to its nearest integer:

Math.floor(1.6);

The output of the code above will be:

1

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More "Try it Yourself" examples below.


Definition and Usage

The floor() method rounds a number DOWNWARDS to the nearest integer, and returns the result.

If the passed argument is an integer, the value will not be rounded.


Browser Support

Method
floor() Yes Yes Yes Yes Yes

Syntax

Math.floor(x)

Parameter Values

Parameter Description
x Required. The number you want to round

Technical Details

Return Value: A Number, representing the nearest integer when rounding downwards
JavaScript Version: 1.0

Examples

More Examples

Example

Use the floor() method on different numbers:

var a = Math.floor(0.60);
var b = Math.floor(0.40);
var c = Math.floor(5);
var d = Math.floor(5.1);
var e = Math.floor(-5.1);
var f = Math.floor(-5.9);

The result of a,b,c,d,e, and f will be:

0
0
5
5
-6
-6

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Math Object Reference JavaScript Math Object

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