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What best describes you?

“I’m comfortable with Rails but new to Angular”

Here are some of my most popular posts for Rails developers getting started with Angular:
Get Started with Angular 4 and Rails 5
How to Deploy an Angular CLI Webpack Project to Heroku
How to Deploy an Angular 2/Rails 5 App to Heroku

“I’m new to Angular and new to Rails”

If that’s the case, I don’t have anything super appropriate for you yet, but stay tuned. You might want to check out Michael Hartl’s Rails tutorial.