https://www.youtube.com/channel/UCYqCZOwHbnPwyjawKfE21wg
http://es6-features.org/#Constants
https://github.com/getify/You-Dont-Know-JS
https://medium.com/search?q=javascript
https://javascriptweekly.com/
https://nodeweekly.com/
https://www.reddit.com/r/learnjavascript/
http://www.jstips.co/
and
https://www.google.com/