JQuery.slim.js

官方描述：

Sometimes you don’t need ajax, or you prefer to use one of the many standalone libraries that focus on ajax requests.
And often it is simpler to use a combination of CSS and class manipulation for all your web animations. Along with the regular version of jQuery that includes the ajax and effects modules, we’ve released a “slim” version that excludes these modules. All in all, it excludes ajax, effects, and currently deprecated code. The size of jQuery is very rarely a load performance concern these days, but the slim build is about 6k gzipped bytes smaller than the regular version – 23.6k vs 30k.

介绍：

JQuery.slim.js去掉了Ajax部分，体积变小了

使用场景：

如果不需要使用JQ的Ajax，或者有更好的Ajax库，则使用JQuery.slim.js非常合适