I think this is going to be a great series, but these ES6 examples aren’t exactly beginner…
Charles D. Villard

Trouble reading ES6 examples?

Copy & paste them into the Babel REPL to see how Babel transforms them into ES5. I also have a two-hour webcast available called “ES6: The ROAD MAP” packed with interactive examples.

The reason that most new JS articles use ES6 is because ES6 is the current official standard now. It’s not some speculative future JS syntax. Lots of companies are using it right now for production projects. The time to learn it is now.

If we published ES5 examples, those examples would be obsolete at publish time.