Round number up to the nearest multiple of 3

Question

Hay, how would i go about rounded a number up the nearest multiple of 3?

ie

25 would return 27
1 would return 3
0 would return 3
6 would return 6
         


        

Answer 1

$(document).ready(function() {
    var modulus = 3;
    for (i=0; i < 21; i++) {
        $("#results").append("
" + roundUp(i, modulus) + "
")
    }
});


function roundUp(number, modulus) {
    var remainder = number % modulus;
    if (remainder == 0) {
        return number;
    } else {
        return number + modulus - remainder;
    }
}

Round up to nearest multiple of 3: