I've used jQuery's ajax method for years to get at XML and JSON data. But what if that's all I need from jQuery? Why must I load a huge library just for ajax? Now you don't have to. This article explains how: https://css-tricks.com/using-fetch/
I attended the annual Desert Code Camp technology conference this past Saturday. I must say, this was my first time attending and I was pretty impressed with the caliber of presentations. You won't get better information at a paid multi-day conference. And they fed us breakfast, lunch and dinner too!
I especially liked the thought provoking presentation on the future without jQuery, Post jQuery by Rob Richardson. Makes me consider being able to drop jQuery from my future projects.