js compare 2 sets code example
Example: javascript compare sets
var a = new Set([1,2,3]);
var b = new Set([1,3,2]);
alert(eqSet(a, b)); // true
function eqSet(as, bs) {
if (as.size !== bs.size) return false;
for (var a of as) if (!bs.has(a)) return false;
return true;
}