Final Code

Putting it all together, our complete shuffling function looks like this:

1function shuffle(arr) {
2  for (let i = 0; i < arr.length; i++) {
3    const j = i + Math.floor(Math.random() * (arr.length - i));
4    [arr[i], arr[j]] = [arr[j], arr[i]];
5  }
6}

Shuffling an array might seem simple, but there's quite a bit happening behind the scenes. This step-by-step guide helps us see the mechanics of the shuffling process and how randomness is introduced to rearrange the elements.