What are the differences between normal and slim package of jquery?

Question

At CDNJS jquery.slim package is placed. It has a smaller size. What are the major differences from an original? A quick look at the code didn't bring the answer, and at the https://jquery.com I've not found any reference about slim package.

So, what are the differences between jquery.js and jquery.slim.js?

Answer 1

The short answer taken from the announcement of jQuery 3.0 Final Release :

Along with the regular version of jQuery that includes the ajax and effects modules, we’re releasing a “slim” version that excludes these modules. All in all, it excludes ajax, effects, and currently deprecated code.

The file size (gzipped) is about 6k smaller, 23.6k vs 30k.

Answer 2

Looking at the code I found the following differences between jquery.js and jquery.slim.js:

In the jquery.slim.js, the following features are removed:

1. jQuery.fn.extend
2. jquery.fn.load
3. jquery.each (attach a bunch of functions for handling common AJAX events)
4. jQuery.expr.filters.animated
5. AJAX settings (jQuery.ajaxSettings.xhr, jQuery.ajaxPrefilter, jQuery.ajaxSetup, jQuery.ajaxPrefilter, jQuery.ajaxTransport)
6. XML parsing (jQuery.parseXML),
7. Animation effects (jQuery.easing, jQuery.Animation, jQuery.speed)