Core JavaScript 1.5 Reference:Global Objects:Math:floor
From MDC
Contents |
[edit] Summary
Returns the largest integer less than or equal to a number.
| Method of Math | |
|
Static |
|
| Implemented in: | JavaScript 1.0, NES 2.0 |
| ECMA Version: | ECMA-262 |
[edit] Syntax
Math.floor(x)
[edit] Parameters
-
x - A number.
[edit] Description
Because floor is a static method of Math, you always use it as Math.floor(), rather than as a method of a Math object you created.
[edit] Examples
[edit] Example: Using Math.floor
The following function returns the floor value of the variable x:
function getFloor(x) {
return Math.floor(x)
}
If you pass 45.95 to getFloor, it returns 45; if you pass -45.95, it returns -46.