Question

I’m trying to figure out the best way to solve rounding a number.

Basically I have this number: var weekMilliseconds = 604800000 (Number of milliseconds in a week)

I have another function that spits out a random number.

What I would like to do is based on the random number, I’d like to output the next multiple of weekMilliseconds.

For example:

if random # is 1: round up to 604800000

if random # is 604800001 round up to 1209600000 (604800000 * 2)

and so on…..

What is the best way to accomplish this.

Answer 1

Use Math.ceil() (which gives you the next whole number up):

Math.ceil(randomNumber / weekMilliseconds) * weekMilliseconds