In Studio 3, most of this kind of functionality still comes in, since Aptana is more suited to the TextMate package for many of its features, which I think is really cool.
However, there is already a jQuery package. The jQuery package, if it is not already installed, can be installed from Aptana in the "Commands" menu ("Commands"> "Bundle Development-> Install Bundle", and then select jQuery from the list) .
In this discussion of support, there is some information about jQuery-code help in Aptana: https://aptanastudio.tenderapp.com/discussions/problems/2006-studio-3-jquery-support-is-lacking
In particular, it mentions adding a jquery vs doc file ( http://code.jquery.com/jquery-1.4.1-vsdoc.js ) to your project. This seems to be the key.
If you install the jQuery package and add the aforementioned JS file, you can get jQuery code hints in your Aptana editors. I just looked at this in one of my Rails projects and it works (I'm on the latest beta version of Studio 3 for Mac).
craig.kaminsky Jan 18 2018-11-18T00: 00Z
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