SugarAI Frontend Developer interview questions

I was called on Skype. The interview was for a Intern position in the core frontend team. During the interview I was asked a few JavaScript specific questions including explaining what a given function does, what is the expected output, as well as object creation and how to extend from an object. Since I wasn't that familiar with JavaScript, I was unable to write down the code. All code is written in plain JavaScript without any additional framwork.