Counting Cards why this code is wrong

JavaScript
#1

Tell us what’s happening:

Your code so far


var count = 0;

function cc(card) {
  // Only change code below this line
  if(card >= 2 && card <= 6){
    count++;
  }else if (card = 10 || (card >= 'A' && card <= 'Q' )){
     count--;
      }
  
  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 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.79 Safari/537.36.

Link to the challenge:
https://learn.freecodecamp.org/javascript-algorithms-and-data-structures/basic-javascript/counting-cards

#2

Because card=10 is not same as card==10

#3