loop popup confusion

Question

Can someone tell me how to make my URLs properly loop into the window.open I created? I’m wondering if the loop is the right answer to make each URL rotate based on

Answer 1

Just change

urls[ rotate ],

to

urls[ (rotate++) % urls.length ],

The index is incremented each iteration and % urls.length (% is used for getting the remainder after division, hence it ensures the result never grows beyond the array size). You can try it here (remember to allow popups).