Algorithms - Find the Symmetric Difference

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Your code so far

function sym(args) {
  return args;
}

sym([1, 2, 3], [5, 2, 1, 4]);

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User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/106.0.0.0 Safari/537.36

Challenge: Algorithms - Find the Symmetric Difference

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