Use the Rest Operator with Function Parameters O

JavaScript
1

Tell us what’s happening:

Your code so far


const sum = (() => {
  "use strict";
  return function sum(...z) {
    const args = [ ...z ]
    return args.reduce((a, b) => a + b, 0);
  };
})();
console.log(sum(1, 2, 3)); // 6

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User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.106 Safari/537.36.

Link to the challenge:
https://learn.freecodecamp.org/javascript-algorithms-and-data-structures/es6/use-the-rest-operator-with-function-parameters/