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JavaScript source request

When looking at the code of some websites, I sometimes notice that some JavaScript files are included as follows:

  <script type="text/javascript" src="javascripts/jquery.js?1252521516"></script>

But I do not see what part of the jquery.js parameter does ? 1252521516 of the src parameter. Can someone please explain this to me?

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4 answers

It allows websites to force browsers to update their cached version of a script or other resource.

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It’s possible to somehow avoid caching (part 1252521516 is generated every time the page loads), but I don’t understand why this is used for jquery

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Source: https://habr.com/ru/post/1721600/

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