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Angular 2's own tutorial is a nice start: https://angular.io/docs/js/latest/tutorial/ .

Am I supposed to bite the bullet and just use/learn typescript?

"This chapter is not yet available in JavaScript. We recommend reading the TypeScript version."

Honestly? Yes. We support ES5 but strongly recommend using Typescript with Angular2. Do you use ES6? If so, you already know how to use Typescript.

I second that. I was able to go from the tutorial to building a couple of small apps on my own, painlessly.

Super nice IMO