Use the Rest Operator with Function Parameters_Kumaresan

Tell us what’s happening:

While running the below code I am getting " The sum function uses the ... spread operator on the args parameter." error. Can you explain why?

Your code so far

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

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/73.0.3683.86 Safari/537.36.

You changed the name of args to x. Since the name args is specified in the test, you should use that.