Game rules:

• don't click/choose the same item multiple times.
• If your 2 consecutive choices match, you score a point.

Learn JavaScript by Building Games 2

Initial main challenge is to shuffle/sort all the items randomly.

cardArray.sort(() => 0.5 - Math.random()) //cardArray is the array that contains all the items

Other JavaScript methods and properties used :

    .querySelector()
    .Math.random()
    .length
    .createElement()
    .setAttribute()
    .append()
    .getAttribute()
    alert()
    .push()
    setTimeout()
    .querySelectorAll()
    .removeEventListener()
    .textContent