javascript - 当用户询问提示时扣除金币

Question

我想创建一个提示，提示用户是否需要答案提示。如果用户需要提示，则会显示提示并扣除用户100金币。我试了很多次还是不行。

 <a href="#hint" class="btn btn-info" id="hint" data-toggle="collapse" 
       onclick="Confirmation()">Hint</a>



 function Confirmation() {
    var retVal = confirm("Are you sure you want a hint");
    if (retVal == true) {
        <div id="hint" class="collapse">
          <span style=" border: 1px solid #d6d6d6;">Answer: A </span>
       </div>
      **//Not sure on how to deduct 100 coins**

        return true;
    }
    else {
        document.write("User does not want to continue!");
        return false;
    }
}

Answer 1

您正在调用Confirmation()，而您的函数名为getConfirmation()