Basic Data Structures - Copy an Array with the Spread Operator

JavaScript
1

Tell us what’s happening:
Solved it but why do we use the spread syntax? If we were to pass in the argument arr only into the newArr why don’t we get the same/wanted result? Thx!

Your code so far

function copyMachine(arr, num) {
  let newArr = [];
  while (num >= 1) {
    // Only change code below this line
  newArr.unshift([arr]);
    // Only change code aove this line
    num--;
  }
  return newArr;
}

console.log(copyMachine([true, false, true], 2));

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Challenge: Basic Data Structures - Copy an Array with the Spread Operator

Link to the challenge:

2

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