[imagist]

I do not care about the rearrangement of deck chairs on the Titanic that is ES6. I wouldn't care if JS were uglier than Erlang, if it worked as well.

The only people who care about ES6 classes are the ones who couldn't be bothered to learn how to use duck typed prototypes and were always trying to shoehorn in polymorphism. Prototypes were one of the few things Javascript had going for it, but adding classes means now there are two OO systems that don't interoperate. This is a new problem, not an improvement. There's a similar problem with callbacks and promises.

Other problems added in ES6: imports don't give an error when the thing I'm importing, continuing the JS tradition of handling errors by pretending everything is okay.

And this is in addition to the rotten core of JavaScript. There remains no integer type. Basic operators still take arguments of all types and return something regardless of whether it makes any sense. "this" still has little to do with this.

In any other language I'd complain about the lack of threading, but given JS can't handle easy stuff like implementing a sane comparison operator, it's probably better that they don't try anything legitimately difficult like threading.