I don’t know what is wrong with “?” and why it is mix up with “Y” in my code. Help me, please
function rot13(str) { // LBH QVQ VG!
var ass;
var stre = str.charCodeAt(0);
var abr;
var arra = [];
var arraye;
for (var i = 0; i < str.length; i++) {
stre = str.charCodeAt(i);
if (stre>= 78 && stre <= 90) {
stre = stre-13;
abr = String.fromCharCode(stre);
arra.push(abr);
}
else if (stre >= 60 && stre <= 77) {
stre+= 13;
abr = String.fromCharCode(stre);
arra.push(abr);
}
else if (stre < 65 || stre > 90) {
stre = stre;
abr = String.fromCharCode(stre);
arra.push(abr);
}
arraye = arra.join('');
}
return arraye;
}
// Change the inputs below to test
rot13("SERR YBIR?");