Random Number Generation

the JavaScript random function,returns a random number between zero and one.
To change it into a whole number first resize it by multiplying by the largest whol enumbr you want, then apply the round() function.

To generate a whole number between 0 and 10

    val= Math.round((Math.random()*10);

    val= Math.round((Math.random()*9)+1;

This form

    function randommax(n){
    // return a random integer between 0 and n
         return Math.round(n*Math.random());
    }