Packs ECMAScript/CommonJs/AMD modules for the browser. Allows you to split your codebase into multiple bundles, which can be loaded on demand. Supports loaders to preprocess files, i.e. json, jsx, es7, css, less, ... and your custom stuff.
TemplateView is a lightweight view for rapid prototyping with a concise syntax, use it when you don't care to create a bunch of subclasses just to show a set of mostly static templates.