Stripping text with javascript

Question

Hi I'm a newbie with javascript and I was wondering how do I strip all the text except the word TB_iframeContent800 . the digits at the end varies.

here is an example string

<iframe frameborder="0" style="width: 670px; height: 401px;" onload="tb_showIframe()" name="TB_iframeContent80" id="TB_iframeContent" src="http://www.gorgeoushentai.com/wp-admin/media-upload.php?post_id=33&amp;" hspace="0">This feature requires inline frames. You have iframes disabled or your browser does not support them.</iframe>

I want to extract TB_iframeContent80 and store it as a variable. So how can you do this using regex with javascript? please note the last 2 digits varies cause the number always changes so it sometimes become a 3 digit number.

Please just use JavaScript's DOM manipulation and not regex. — Martin Ender
– Martin Ender, Commented Oct 26, 2012 at 8:55
Then using the DOM functionality would be semantically correct, and easier to achieve. — undefined
– undefined, Commented Oct 26, 2012 at 8:57

Ruben-J · Accepted Answer · 2012-10-26 08:57:40Z

4

 var iframeName = document.getElementsByTagName("iframe")[0].name

if you've include jQuery then it could be something like this:

 var iframeName = $("iframe:first").attr("name");

answered Oct 26, 2012 at 8:57

Ruben-J

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Mark Walters · Accepted Answer · 2012-10-26 09:02:01Z

1

If jQuery is an option I think you are looking for something like this

$('iframe[name^="TB_iframeContent"]')

answered Oct 26, 2012 at 9:02

Mark Walters

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bukart · Accepted Answer · 2012-10-26 09:02:41Z

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If you wont use DOM (because code analysis etc) just try this regex

var code = '<iframe ... /iframe>';

var result = code.match( /name="([^"]*)"/ );

var extract = result[1];

this selects the content of the name attribute

answered Oct 26, 2012 at 9:02

bukart

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Boris D. Teoharov · Accepted Answer · 2012-10-26 09:14:41Z

1

You could load html youre parsing like this and use DOM to get its name (its easier and more reliable way than using a regex):

var loadhtml = document.createElement('div');
loadhtml.innerHTML = 'yourHtml';

var theName = loadhtml.getElementsByTagName('iframe')[0].name;

If you use Jquery you could consider attr("name") as way to get name

However if you insist using a Regex here is one :

/< *iframe[^>]*name *= *['"]([^'"]*)/

answered Oct 26, 2012 at 9:14

Boris D. Teoharov

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