jQuery function not binding to newly added dom elements
Question
Here's index.html :
<head>
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.5.2/jquery.min.js"></script>
<script type="text/javascript">
$(document).ready(function() {
$('.btn_test').click(function() { alert('test'); });
});
function add(){
$('body').append('<a href=\'javascript:;\' class=\'btn_test\'>test</a>');
}
</script>
</head>
<body>
<a href="javascript:;" class="btn_test">test1</a>
<a href="javascript:;" onclick="add()">add</a>
</body>
If I click on test1 link, it shows alert('test') , but if I click on add link then click on test , it doesn't show anything.
Could you explain it?
13 answers
solution1
211 2012-08-14 21:42:36
For users coming to this question after 2011, there is a new proper way to do this:
$(document).on('click', '.btn_test', function() { alert('test'); });
This is as of jQuery 1.7.
For more information, see Direct and delegated events
solution2
34 2011-06-30 15:37:05
You need to use a "live" click listener because initially only the single element will exist.
$('.btn_test').live("click", function() {
alert('test');
});
Update: Since live is deprecated, you should use "on()":
$(".btn_test").on("click", function(){
alert("test");
});
solution3
15 2013-02-14 03:28:33
I have same problem like question I was just near to pulling my hair then i got the solution. I was using different syntax
$(".innerImage").on("click", function(){
alert("test");
});
it was not working for me (innerImage is dynamically created dom) Now I'm using
$(document).on('click', '.innerImage', function() { alert('test'); });
thanks @Moshe Katz
solution4
8 2011-06-30 15:37:45
.click binds to what is presently visible to jQuery. You need to use.live:
$('.btn_test').live('click', function() { alert('test'); });
solution5
7 2011-06-30 15:38:35
Use Jquery live instead. Here is the help page for it http://api.jquery.com/live/
$('.btn_test').live(function() { alert('test'); });
Edit: live() is deprecated and you should use on() instead.
$(".btn_test").on("click", function(){
alert("test");
});
solution6
3 2011-06-30 15:38:34
This is because you click event is only bound to the existing element at the time of binding. You need to use live or delegate which will bind the event to existing and future elements on the page.
$('.btn_test').live("click", function() { alert('test'); });
solution7
2 2011-06-30 15:37:47
you need live listener instead of click:
$('.btn_test').live('click', function() {
alert('test');
}); The reason being is that the click only assigns the listener to elements when the page is loading. Any new elements added will not have this listener on them. Live adds the click listener to element when the page loads and when they are added afterwards
solution8
1 2013-07-11 15:35:49
After jquery 1.7 on method can be used and it really works nice
<!DOCTYPE html>
<html>
<head>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.1/jquery.min.js">
</script>
<script>
$(document).ready(function(){
$("p").on("click",function(){
alert("The paragraph was clicked.");
$("body").append("<p id='new'>Now click on this paragraph</p>");
});
$(document).on("click","#new",function(){
alert("On really works.");
});
});
</script>
</head>
<body>
<p>Click this paragraph.</p>
</body>
</html>
see it in action http://jsfiddle.net/rahulchaturvedie/CzR6n/
solution9
1 2011-06-30 15:37:50
When the document loads you add event listeners to each matching class to listen for the click event on those elements. The same listener is not automatically added to elements that you add to the Dom later.
solution10
1 2011-06-30 15:38:34
Because the event is tied to each matching element in the document ready. Any new elements added do NOT automatically have the same events tied to them.
You will have to manually bind the event to any new element, after it is added, or use the live listener.
solution11
1 2011-06-30 15:41:48
$('.btn_test').click
will add the handler for elements which are available on the page (at this point 'test' does not exist!)
you have to either manually add a click handler for this element when you do append, or use a live event handler which will work for every element even if you create it later..
$('.btn_test').live(function() { alert('test'); });
solution12
0 2013-01-23 22:47:05
Or just run the script at the end of your page
solution13
0 2017-09-06 14:45:43
You need to add a proper button click function to give a proper result
$("#btn1").live(function() { alert("test"); });
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