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 |
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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< JavaScript Math Object