Question

I know that I can round a number like this

var number = 1.3;
Math.round(number);

and the result I’m given is 1.

But how can I round a number to the next highest whole number? So round 1.3 to 2 instead of 1?

Answer 1

var rounded = Math.ceil(number);

As an aside, in platforms with no ceil method available, and assuming round rounds to the nearest integer, a common trick used to round upwards is:

var rounded = Math.round(number + 0.5);