Answer 1

Hi Amuko

So I'm working on a little address book app, which holds the persons details as an object. The person objects are held in an array called "addressbook". By nature the array has to be mutable as I need to add new person objects ie using array.push(person-object), or deleting or sorting etc.

A scenario for dictionary might be to look up postcode and convert to an address. While infrequent we do sometimes need to add and remove post codes.