README

Todo

• Todo is an IFFE to allow for input validation as well as creating a private closure to store unique ids from each todo instance.
• Input validation is performed on the length of title and description, and on the month and year of data. Title length less than 3 charaters, description length less than 5 characters, and month/year combination that is prior to current date are considered invalid. Missing one of the input properties would also render an input data object invalid.

Todo List

• TodoList is a factory function, and initialized with an array of todo objects.
• I chose to use the factory function pattern, since using an IIFE would result in separate todoList instances mingling with each other, and using a constructor function approach has little benefit since shielding off private data and returning the public methods as an API to the users would result in factory objects created, even when new keyword is called. In the case that there is only one instance of the todoList, then it's possible to set up the function as an IIFE.
• The interface allows adding and deletion of objects from the list, and returns a copy of the objects when called, but the objects themselves are never changed through the TodoList interface except through the edit() functionality
• Users also can not use all() to access and change todo object instances or mutate the todoList object.

Todo Manager

• Returns list of todo objects based on specification
• A todoManager object is created from OLOO