Problems with Counting Cards

Tell us what’s happening:
Not sure what I did here. Any help is much appreciated.

Your code so far

var count = 0;

function cc(card) {
  // Only change code below this line
  switch(card) {
    case 2:
    case 3:
    case 4:
    case 5:
    case 6:
    case 7:
    case 8:
    case 9:
    case 10:
    case "J":
    case "Q":
    case "K":
  if(count > 0){
    return count + "Bet";
  } else {
    return count + "Hold";
  // Only change code above this line

// Add/remove calls to test your function.
// Note: Only the last will display
cc(2); cc(3); cc(7); cc('K'); cc('A');

Your browser information:

User Agent is: Mozilla/5.0 (Linux; Android 7.0; P008) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.157 Safari/537.36.

Link to the challenge:

The strings that you return don’t have any space between the number and the word.

After every case Num: should be followed by code to be executed and subsequental ```break;`` command.
This is same as:

if(card == num){
//empty, no code to be executed?

is as

 switch(card) {
    case 2:
//where is the code to executed? there is none!?

and so on …
Here is the link that explains it.