I was about to write something to the effect of, “why would this person WANT to add mixins to JavaScript? Just make classes, use composition over inheritance, blah blah” and then I read this post, and of course, Reginald uses this opportunity to make some very interesting points. So yeah, read this instead.
http://raganwald.com/2015/12/23/super-considered-hmmmful.html
I was about to write something to the effect of, “why would this person WANT to add mixins to JavaScript? Just make classes, use composition over inheritance, blah blah” and then I read this post, and of course, Reginald uses this opportunity to make some very interesting points. So yeah, read this instead.