THE WORLD'S LARGEST WEB DEVELOPER SITE

JavaScript floor() Method

❮ JavaScript Math Object

Example

Round a number downward to its nearest integer:

Math.floor(1.6);
Try it Yourself »

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: ECMAScript 1

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);
Try it Yourself »

❮ JavaScript Math Object