在Javascript中，我的onEvent没有被调用，而其他onEvents是

Question

I'm currently creating a blackjack game. In my game, when the user clicks "Stay", the program is suppose to find who is closer to 21, the user or the house. When I click stay, nothing occurs in my program. Any help will be appreciated. Thanks for reading.

onEvent("stayButton","clicked", function()   {

 if (userTotal == 21) {
      setText("userArea","Player total is: " + userTotal +" Player wins!");
 }
  houseTotal();

  while (houseTotal < 17)  {
    appendItem( houseHand,deck.pop() );
    houseHandTotal();
  }

  if (houseTotal > 21) {
   setText("houseArea","House busts, User wins");
   var userWins = betAmount * 1.2;
   TotalMoney = TotalMoney + userWins;
  }

  setText("houseArea",houseHand + "house total is: " + houseTotal);

  if ( 21 - userTotal < 21-houseTotal && userHandValue != "bust" && houseHandValue != "bust")   
  {
    setText("userArea","Player total is: " + userTotal +" Player wins!");
  }

  else if (21 - userTotal > 21-houseTotal && userHandValue != "bust" && houseHandValue != "bust") 
  {
    setText("userArea","Player total is: " + userTotal +" Player loses!");
  }

});

Answer 1

Assuming onEvent is a wrapper for addEventListener , then the proper event name is click , not clicked .

Other minor clean up points:

• Also, use === and !== for equality comparisons instead of == and != to avoid type conversion related nuances.
• Lastly, mostly stylistic, JS code tends to prefer single quotes for strings ' .
• Not JS specific, but try using a logical approach to new lines in your code to make it readable.

onEvent('stayButton', 'click', () => {
  if (userTotal === 21)
    setText('userArea', 'Player total is: ' + userTotal + ' Player wins!');

  houseTotal();
  while (houseTotal < 17) {
    appendItem(houseHand, deck.pop());
    houseHandTotal();
  }

  if (houseTotal > 21) {
    setText('houseArea', 'House busts, User wins');
    let userWins = betAmount * 1.2;
    TotalMoney = TotalMoney + userWins;
  }

  setText('houseArea', houseHand + 'house total is: ' + houseTotal);

  if (21 - userTotal < 21 - houseTotal && userHandValue !== 'bust' && houseHandValue !== 'bust')
    setText('userArea', 'Player total is: ' + userTotal + ' Player wins!');
  else if (21 - userTotal > 21 - houseTotal && userHandValue !== 'bust' && houseHandValue !== 'bust')
    setText('userArea', 'Player total is: ' + userTotal + ' Player loses!');
});