var days = [
    "sunday",
    "monday",
    "tuesday",
    "wednesday",
    "thursday",
    "friday",
    "saturday"
];

var rng = 10; //for chosen at random


var index = rng % days.length();

assert index == 3, "dot modulo bugfix failed";

rng %= days.length();

assert rng == 3, "dot modulo assign bugfix failed";


print "All good";