javascript - In HTML5, please explain the meaning of '?' in the statement -

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in html5, meaning of '?' in statement? what's meaning of content after '?'?

<script type='text/javascript'         src='http://mobile.smashingmagazine.com/wp-includes/js/thickbox/thickbox.js?ver=3.1-20121105'> </script>

in html 5, nothing. part of url.

in case, indicates start of query string, process on server may give special attention to.

it might give no special meaning whatsoever, there url different avoid older, cached versions of same file being reused after changes made it.


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