Why can't jquery click event with specified ID be triggered?-JS Tutorial-php.cn

Why can't jquery click event with specified ID be triggered?

黄舟

Release： 2017-06-27 10:18:49

Original

2405 people have browsed it

I just encountered this problem using jquery, click did not respond.
jquery is like this

<script type="text/javascript">
$(document).ready(function(){     
alert("1");
$("#b01").click(function(){
    alert("2");
});
});     
</script>

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This is the button<button id="b01" type="button">Change Content</button>

When the page is refreshed, the box 1 will pop up, but the box for clicking button 2 not only pops up, but there is no response. Why? !

There is no problem with this part of the code under FF. It is estimated that <button id="b01" type="button">Change Content</button>
You will follow this part Generated, this part has not been loaded when $(document).ready.

Tested to be normal

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title> new document </title>
<script type="text/javascript" src="http://code.jquery.com/jquery-latest.js"></script> 
 
</head>
 
<body>
<script type="text/javascript">
$(document).ready(function(){     
alert("1");
$("#b01").click(function(){ 
    alert("2");
});
});     
</script>
这个是按钮<button id="b01" type="button">Change Content</button>
</body>
</html>

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<button id="b01" type="button">Change Content</button>

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is written directly in the body, so it is not loaded?
If it is a problem of not loading, is there any way to solve it?

If you write it directly in html, you can check whether there are spelling errors or something. Independent tests such as 2# can be run.

No problem, FF, IE and Google have all tried it. Are you sure you pressed Change Content and not "Send"?

It won’t work if it contains include>, just delete it. Why?

Then it may be that your include part also has an element id called b01. If I remember correctly, the ID selector will only return the first element.

There seems to be some conflict? Just change $ to jQuery, thank you everyone

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