1var ceiling1 = Math.ceil(4.7); //5 
2var ceiling2 = Math.ceil(-3.4); //-3

1Math.ceil(1.2);
2// 2

1Math.ceil(x); //This equals the next whole number after x. X must be a double.
2
3//Example use:
4x = Math.ceil(x);
5//Now x is equal to x rounded up.

1Math.ceil()