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I've got a Javascript library for AJAX file uploading that I need to include on only one page. Where is the best folder for this for file? app/assets/javascripts? vendor/assets/javascripts? lib/assets/javascripts? And then I need to be able to include it on only one page. Or should I just add it to application.js and have it included on every page (even know I'm only using it on one page?)

I figured for performance my best bet would be to put the minified JS file somewhere, and just include it with a javascript_include_tag on the page I need it, by using yield(:head) and content_for(:head)? Thank you.

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Third party JavaScripts should go inside vendor/assets/javascripts directory, because app/assets/javscripts is for your application specific JavaScripts and lib/assets/javascripts is for your libraries code which is separate to your application or libraries that you have shared across different applications.

Please reference Asset Organization for further details.

As far as inclusion of javascripts in your application/page if you're using it only on a specific page then including the file with javascript_include_tag is the approach I would take as well.

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Thanks. Do I keep it out of my application.js as well? I presume I should use the minified library and keep it out of application.js, and then use the yield to include it?
@b0xxed1n, sure minified library; out of application.js sounds good.
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In the folder vendor/assets/javascripts because is a folder for third party script

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