ES6: Use the Spread Operator to Evaluate Arrays In-Place problem

OK, I have this code:

const arr1 = ['JAN', 'FEB', 'MAR', 'APR', 'MAY'];
let arr2;
(function() {
  "use strict";
  arr2 = arr1; // change this line

I get this error: … spread operator was used to duplicate arr1.

You are not using the spread operator.

I think you must use the spread operator to copy the array and not the direct assignment…

Thanks for your replies.

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Thank you for understanding.

You must use the spread operator, this solution for challengue:
arr2 = [...arr1]; // change this line