[miclill]

> First, it’s important to learn plain JavaScript.

> Don’t depend on a library of shortcuts. JavaScript will be around for many years, while libraries and frameworks come and go every year.

I agree with the last part but this is not necessarily a sufficent reason to not learn via a framework or library. I'd say it depends on the circumstances, what you want to achieve by learning JS and also what type of a learner you are.