Why jQuery selector can't work but getElementById works in this scenario?
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Stallman
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Published on 2012-11-25T04:45:44Z
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2012/11/25
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Here is the HTML:
<html>
<head>
<script type="text/javascript" src="jquery-1.7.2.min.js"></script>
<script type="text/javascript" charset="utf-8" src="jquery-1.7.2.js"></script>
<script type="text/javascript" src="access.js"></script>
</head>
<body>
<button id="trigger"></button>
<img id= "testElement" style= "position: absolute; border-color: white; top:340px; left:615px;" width="34px" height= "34px" />
</body>
</html>
And the access.js file is:
$(document).ready( function(){
$('#trigger').click(function(){
$('#testElement').src="success.png";
//THIS WON'T WORK.
document.getElementById('testElement').src= "success.png";
//BUT THIS WORKS.
});
});
I know that if I use $, the return object is a jQuery object. It's not the same as getElementById. But why the jQuery selector can't work here?
I need the jQuery object to make more operations like "append/style"...
Thanks.
UPDATE Too much correct answers appear at almost the same time... Please give more explanations to let me decide who I should give the credit, thanks!!! Sorry for my poor understanding of your correct answer... I just want more detail.
Are all the attribute nodes(src/width/height...) not the property of jQuery object? So does the jQuery selector only select DOM Element Node like
Thank you! 3. List item
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