Um.. I've done Bootstrap a couple of time and I feel like it's mostly a CSS/grid framework. The javascripts are there to make stuff backward compatible with ol

Um.. I've done Bootstrap a couple of time and I feel like it's mostly a CSS/grid framework. The javascripts are there to make stuff backward compatible with older browser, such as modernizr, and whatever. If you want to learn say web design/web development. You should learn HTML/CSS first then Javascript with DOM tree. Then jQuery after that a serverside language imo. Dom Scripting is a pretty good book btw.