https://github.com/excellalabs/the-javascript-curriculum/blob/master/README.md

https://github.com/MostlyAdequate/mostly-adequate-guide/blob/master/README.md

https://medium.com/@dtinth/what-is-a-functor-dcf510b098b6

What is a Closure? What’s the Difference Between Class & Prototypal Inheritance? What is a Pure Function? What is Function Composition? What is Functional Programming? What is a Promise? Soft Skills

https://codeburst.io/10-javascript-concepts-you-need-to-know-for-interviews-136df65ecce

http://www.nicoespeon.com/en/2015/01/pure-functions-javascript/