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JavaScript Build a Two-Dimensional Array

Does these two codes work the same in here?

The code in teacher's notes:

for (let i=0; i<suites.length; i++) {
   for (let j=0; j<ranks.length; j++) {
     let card = [];
     card.push(ranks[j], suites[i]);
     deck.push(card);
   }
  }

My code:

for (let i = 0; i < suites.length; i ++){
    for (let j = 0; j < ranks.length; j ++){
      let card = [suites[i], ranks[j]];
      deck.push(card);
    }
  }

1 Answer

Steven Parker
Steven Parker
229,645 Points

It looks like you have the item order reversed, but otherwise this would be an improvement on the example by saving a step!

But you can save yet another step and also eliminate the "card" variable completely:

      deck.push([ranks[j], suites[i]]);