Wes Bos blog
Another plus point of this blog is that it is particularly impressive and good-looking. If you follow aestheticism, Wes Bos is an excellent choice.
Addy's blog gives you all you need to know about this programming language. Of course, having prior basic knowledge is better to understand what Addy writes. The unique feature of this blog is the case studies. You will have chances to study how to build a globally famous app, such as Pinterest, Netflix, Tinder. For a developer, what is better than such real-life lessons?