JavaScript floor() method
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Definition and usage
floor()
The method rounds the number down to the nearest integer and returns the result.
If the passed parameter is an integer, the value will not be rounded.
Description
floor()
The method performs a floor calculation, returning the integer that is less than or equal to the function parameter and closest to it.
Example
Example 1
Round the number down to the nearest integer:
Math.floor(1.6);
Example 2
Using 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);
Syntax
Math.floor(x)
Parameter value
Parameter | Description |
---|---|
x | Required. The number you want to round down. |
Technical details
Return value: | The value, representing the nearest integer when rounding down. |
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JavaScript Version: | ECMAScript 1 |
Browser Support
Methods | Chrome | Edge | Firefox | Safari | Opera |
---|---|---|---|---|---|
floor() | Support | Support | Support | Support | Support |
Related Pages
Tutorial:JavaScript Math
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