Question

我是javascript和HTML的新手。想在DOM上练习。我遇到了这个问题，这段代码没有执行。给我错误，即x.addEventListenern不是一个函数。任何帮助将不胜感激。

  

      var counter = 0;

        var x = document.getElementById("button");

        x.addEventListenern("click",button1,false);        
            function button1 ()
        {
        counter ++;

        document.getElementById("counter").innerHTML = "Counter =" + counter;
        }


        
     <!DOCTYPE html>
      <html lang="en">
       <head>
          <meta charset="utf-8"/>

          <title>Counter</title>

          <script type="text/javascript" src= "Counter.js"></script>

         <link rel="stylesheet" type = "text/css" href="Counter.css"/>
       </head>
      <body>
      <div>

         <button id ="button">Increment</button><br/>

     </div>
       <p id = "counter"></p>


       <p id = "demo"></p>
    
      </body>

     </html>

Answer 1

试试这个：

body.td-animation-stack-type0 .td-animation-stack .entry-thumb, body.td-animation-stack-type0 .post img {
  opacity:0;
}

检查jsfiddle here

＆＃34; message＆＃34;：＆＃34; Uncaught TypeError：x.addEventListenern不是函数＆＃34;，？

1 个答案: