javascript - Simulate an "include_once" for jQuery - Stack Overflow

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I have created a simple page that use jQuery, so include jquery.min.js.

But I have to insert an iFrame in the same page (and no, unfortunately I can't use anything else) that include a different versione of jquery.min.js.

How can I force the browser to include only one of those two version (like an include_once in php)?

Thank you!

I have created a simple page that use jQuery, so include jquery.min.js.

But I have to insert an iFrame in the same page (and no, unfortunately I can't use anything else) that include a different versione of jquery.min.js.

How can I force the browser to include only one of those two version (like an include_once in php)?

Thank you!

• javascript
• jquery
• html

Share Improve this question Follow asked Oct 25, 2011 at 10:13 Marco PaceMarco Pace 3,8702121 silver badges3838 bronze badges

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1 Answer 1

Sorted by: Reset to default 10

Not tested but at the end of your page, just before </body> tag, you can add this:

<script>
  window.jQuery || document.write('<script src="js/jquery.min.js"><\/script>')
</script>

This checks if jQuery is available or not, if not it will add one dynamically from path specified.

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