Tell us what’s happening:
Your code so far
function sym(args) {
}
sym([1, 2, 3], [5, 2, 1, 4]);
Your browser information:
User Agent is: Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/86.0.4240.75 Safari/537.36
.
Challenge: Find the Symmetric Difference
Link to the challenge: