this question is not related to jQuery. but it confused me for a long
time. i found some websites use the following syntax to import a js
file or a css file into a webpage, who can explain what does the
parameter after the "?" ? thanks.
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<link href="/css/cobrand/no_cobrand.css?v=build-399_3_1424" type="text/
css" rel="stylesheet">
</link>
<script src="/js/scripts.js?v=build-399_3_1424" type="text/
javascript">
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