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jQuery: Remove attribute from tags in var

Posted on 2013-06-09
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Last Modified: 2013-06-11
Using jQuery, how can I remove all longdesc attributes from images within a var?

<!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>Demo</title>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.7/jquery.min.js"></script>
<script type="text/javascript">

$(document).ready(function() {

var stuff='<p><a><img src="image.gif" longdesc="hello" alt="" /></a></p><p><a><img src="image.gif" longdesc="hello" alt="" /></a></p><img src="image.gif" longdesc="hello" alt="" />';
alert( $(stuff).find('img').removeAttr('longdesc').html()  );

// Should alert <p><a><img src="image.gif" alt="" /></a></p><p><a><img src="image.gif" alt="" /></a></p><img src="image.gif" alt="" />

});

</script>

</head>
<body>

</body>
</html>

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Question by:hankknight
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2 Comments
 
LVL 15

Expert Comment

by:Jagadishwor Dulal
ID: 39233681
What exactly you are doing?? just passing image in variable I don't know but the easy way is using each and remove attribute see the example below:
<!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>Demo</title>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.7/jquery.min.js"></script>
<script type="text/javascript">
$(document).ready(function() {
	$('img').each(function(){ 
		$(this).removeAttr('longdesc')
	});
});
</script>
</head>
<body>
<p><a><img src="image.gif" longdesc="hello" alt="" /></a></p>
<p><a><img src="image.gif" longdesc="hello" alt="" /></a></p>
<img src="image.gif" longdesc="hello" alt="" />
</body>
</html>
                                  

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Accepted Solution

by:
vuhanguyen earned 500 total points
ID: 39233803
If you just want to remove a string within a var, use this:


var stuff='<p><a><img src="image.gif" longdesc="hello" alt="" /></a></p><p><a><img src="image.gif" longdesc="hello" alt="" /></a></p><img src="image.gif" longdesc="hello" alt="" />';
alert(stuff.replace(/longdesc="\w*"/g,''));

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