Counting Cards problem

JavaScript
1

Can someone explain why my solution isn`t right:

let count = 0;

function cc(card) {
  // Only change code below this line
if ((card === 2) || (card === 3) || (card === 4) || (card === 5) || (card === 6)) {
  count = count + 1;
  return count + "Bet";
}
else if ((card === 7) || (card === 8) || (card === 9)) {
  return count + "Hold";
}
else if ((card === 10) || (card = 'J') || (card = 'Q') || (card = 'K') || (card = 'A')) {
  count = count - 1;
  return count + "Hold";
}
else {
  return "Change Me";
}
  
  // Only change code above this line
}

cc(2); cc(3); cc(7); cc('K'); cc('A');
2

First of all, your output isn’t quite right, put this at the bottom to see:

console.log(cc(2))
console.log(cc('K'))
console.log(cc('K'))

Also, you if/else structure needs some attention - you’re on the right path, but aren’t quite there yet.

Also, remember that what you return shouldn’t be based on the most recent card, but on what the count is after the most recent card.

1 Like
3

I checked the example you gave and it seems correct:
1 Bet
0 Hold
-1 Hold
Maybe I didn`t understand what the problem wants ( English is not my first language) but to my understanding the exercise requires that I keep track of all cards extracted to asses my chance that the next card is in the “good” or “bad” category.

4

Right, but the return value has nothing to do with the value of card

1 Like
5

Thank you both for your effort. Turns out my problem was I didn`t know how to use the console.log command to test my code. Once I did that I saw the problem with the hold/bet and managed to address the issue. The code looks like this now and it works:

let count = 0;
function cc(card) {
  // Only change code below this line
if ((card === 2) || (card === 3) || (card === 4) || (card === 5) || (card === 6)) {
  count = count + 1;
  if (count > 0) {
    return count + " Bet";
  }
  else {
    return count + " Hold";
  } 
}
else if ((card === 7) || (card === 8) || (card === 9)) {
  if (count > 0) {
    return count + " Bet";
  }
  else {
    return count + " Hold";
  } 
}
else if ((card === 10) || (card = 'J') || (card = 'Q') || (card = 'K') || (card = 'A')) {
  count = count - 1;
  if (count > 0) {
    return count + " Bet";
  }
  else {
    return count + " Hold";
  } 
}

else {
  return "Change Me";
}  
  // Only change code above this line
}
6

one of your issues was this, typo or distracted I think

7

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