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What's the shebang/hashbang (#!) in Facebook and new Twitter URLs for?
Does this enable something special? I see it everywhere, like http://www.nikebetterworld.com/#/NYC_Plays_Ball
What is it for? :)
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Kai Jorgensen
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http://stackoverflow.com/questions/3009380/whats-the-shebang-hashbang-in-facebook-and-new-twitter-urls-for This might clear things up. – Joris Ooms Jul 27 '11 at 22:02
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Not sure what a URL has to do with HTML5/CSS3. – BoltClock Aug 11 '11 at 18:17
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The part after the # is a fragment identifier, and isn't sent to the server
The browser may also inspect it via javascript (location.hash) for example
John La Rooy
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It is mostly used on "ajax" web sites.
When you have page with content displayed by javascript/ajax, one of the problem is the URL is not changing (and you cannot use back button). So developers are using this kind of URL to enhance their websites with back button compatibility.
shaggy
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You probably know that already, but the primary use is jumping to an anchor. In http://en.wikipedia.org/wiki/Fragment_identifier#Examples the URL makes the page scroll to the Examples section of that Wikipedia article as soon as it finishes loading.
Lately, it's also been used to allow direct linking/bookmarking and navigation history for Ajax-based sites. See here for details.
bfavaretto
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