A random number between 1 and 4 that's not another random number

Question

For some reason the following code doesn\'t work.

var a1 = Math.floor(Math.random()*4+1); 

//Answer2
for(a2 = 0; a2 != a1 && a2 != 0; a2 = Math.floo         


        

Answer 1

How about a while loop instead? Initialise a2 = a1 and then:

while(a2 == a1) {
    a2 = Math.floor(Math.random() * 4 + 1);
}