I need help using the Rest Operator with Function Parameters

Tell us what’s happening:

Unsure of what I did wrong. If anyone could help me I’d really appreciate it.

Your code so far

const sum = (function() {
  "use strict";
  return function sum(x, y, z) {
    const args = [ ...x, ...y, ...z ];
    return args.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; Win64; x64; rv:65.0) Gecko/20100101 Firefox/65.0.

Link to the challenge:

Try to read documentation on the rest operator and see if it becomes clear

It has to do with the following part of your code:
console.log(sum(1, 2, 3)); // 6

Check the input types for your sum function.

I tried that it didn’t work

Have you read the link I posted?

I got it thank you!!!