Core JavaScript 1.5 Reference:Global Objects:Math:ceil

From MDC

Contents 1 Summary 2 Syntax 3 Parameters 4 Description 5 Examples 5.1 Example: Using Math.ceil 6 See Also

[edit] Summary

Returns the smallest integer greater 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.ceil(x)

[edit] Parameters

x 

A number.

[edit] Description

Because ceil is a static method of Math, you always use it as Math.ceil(), rather than as a method of a Math object you created.

[edit] Examples

[edit] Example: Using Math.ceil

The following function returns the ceil value of the variable x:

function getCeil(x) {
   return Math.ceil(x)
}

If you pass 45.95 to getCeil, it returns 46; if you pass -45.95, it returns -45.

[edit] See Also

floor