How does the modulus operator work?

Question

Let\'s say that I need to format the output of an array to display a fixed number of elements per line. How do I go about doing that using modulus operation?

Using C

Answer 1

This JSFiddle project could help you to understand how modulus work: http://jsfiddle.net/elazar170/7hhnagrj

The modulus function works something like this:

     function modulus(x,y){
       var m = Math.floor(x / y);
       var r = m * y;
       return x - r;
     }