In the authors comparison of the language features the relatively new `let` feature would now move one of the scheme features into the "shared with JS" subset, making it overall look a lot more like scheme...
I suspect there are some other new shared aspects as well but I don't comprehend the language feature definitions well enough to say confidently.
Hoisting variable definitions is just straight up pants on head stupid.
The way scoping for `this` works is bizarre and un-intuitive. I routinely run into people who spend a lot of time programming in JS and who I consider pretty smart and capable programmers (based on reviewing dozens/hundreds of PRs from them) who didn't understand the way it works until after I explained it to them.
let/const/arrow functions fix most of these, but it took over twenty years for those problems to get fixed. Also, they didn't exist when this article was written in 2013.
function name() {}
Yes var had it's own set of problems (which you could argue make the alternative of assigning functions to variables bad) causing unexpected bugs but those have in turn been solved very well by const and let... and just like function names, there is also no reason to use var now.