admin管理员组

文章数量:1426007

I want to alert something in the onclick event of a div .

This is my code:

<script type="text/javascript">
document.getElementById('new_div').click(function() {
    alert(1);

});

</script>

<div id="new_div" style="border:1px solid;">
Clicked Me......
</div>

But when loading the page it displays an error:

document.getElementById("new_div") is null

What is the problem in my code?

I want to alert something in the onclick event of a div .

This is my code:

<script type="text/javascript">
document.getElementById('new_div').click(function() {
    alert(1);

});

</script>

<div id="new_div" style="border:1px solid;">
Clicked Me......
</div>

But when loading the page it displays an error:

document.getElementById("new_div") is null

What is the problem in my code?

  • javascript
Share Improve this question edited Jan 15, 2016 at 22:25 gariepy 3,6846 gold badges23 silver badges34 bronze badges asked Apr 23, 2012 at 9:26 KichuKichu 3,26716 gold badges72 silver badges135 bronze badges
Add a ment  | 

6 Answers 6

Reset to default 3

Edit: This should be a better solution, I'm a bit rusty in JavaScript.

You need to load your JavaScript event handlers after the page is loaded. The simplest way is making your code load when the document finishes loading and the window casts an onload-event.

<script type="JavaScript">
window.onload = function(){
    document.getElementById('new_div').onclick = function() {
        alert("Good morning, you are very beautiful today!");
    }
}
</script>

you defined that div after your javascript code, so when you add your handler the div doesn't exist yet

reverse your code like so

<div id="new_div" style="border:1px solid;">
Clicked Me......
</div>


<script type="text/javascript">
   console.log(document.getElementById('new_div'))
</script>

to correctly attach an event use addEventListener (and attachEvent for IE<9) or simply use document.getElementById('new_div').onclick = ... (but not remended since you remove any previous defined handler, if any)

The new_div is not yet loaded when your javascript executes.

Try something like this:

$(document).ready(function()
{
    $('#new_div').click(function()
    {
        alert(1);
    }); 
});

Edit

I assume you use jQuery because you use .click(function() {

<script type="text/javascript" src="js/jquery-1.4.2.min.js"></script>

  <script type="text/javascript">
   function clicked(item) {
    alert($(item).attr("id"));
   }
  </script>


  <div onclick="clicked(this);" id="test">test</div>

I think you jquery solves your problem beautifully.

<script type="text/javascript" src="http://code.jquery./jquery-1.7.2.min.js"></script>
<script type="text/javascript">
jQuery(document).ready(function($) {
$('#new_div').click(function() {
    alert(1);
    });
});
</script>

your HTML stays the same

try this 

          <html>
       <head>

    <script type="text/javascript">
    $(document).ready(function(){
      $("#new_div").click(function(){
        alert(1);
      });
    });
    </script>
    </head>

   <body>
    <div id="new_div" style="border:1px solid;">
    Clicked Me......
       </div>
     </body>
    </html>

本文标签： Call Onclick of Div Using javascriptStack Overflow

版权声明：本文标题：Call Onclick of Div Using javascript - Stack Overflow 内容由网友自发贡献，该文观点仅代表作者本人， 转载请联系作者并注明出处：http://www.betaflare.com/web/1745459178a2659242.html， 本站仅提供信息存储空间服务，不拥有所有权，不承担相关法律责任。如发现本站有涉嫌抄袭侵权/违法违规的内容，一经查实，本站将立刻删除。