From the top of my head, from someone who currently seeks work as a full stack (Rails) developer:

I would ask if you by "method" mean function defined on an object. If so, this refers to the method's object. If not, this can take on 5 values. In the global scope it is the global object; in a constructor it is the newly created object; in a function (not defined on an object - and also goes for functions defined within methods defined on objects) it is the global object; in a method (defined on object) it is the object, and finally it can be set explicitly with functions like call and apply.

How did I do? (Serious question. I think my answer is good, but I also struggle with a serious form of imposter syndrome.)