Engineer phone screen questions: 1.) What is a closure? 2.) What's the right way to share data between controllers/directives? 3.) What is the dot notation? In person whiteboard questions: 1.) Say you had an array of objects with 3 keys(name, apr and max_credit) how would you sort the array by apr in ASC order. 2.) Say you had the same array of objects how would you find the objects that apr are within a range? 3.) How would you check if a string is a palindrome manually?