Write JavaScript code that checks if the local storage contains an item named authToken. If the item exists, the code should assign the variable userAuthToken with the item. (2.1) (2.2) Write a regular expression that exactly matches a string consisting of a city, state and ZIP code. The city must be followed by a comma (), the state must be two capital letters, and the ZIP code must be 5 digits optionally followed by a hyphen (-) and four digits. Ex: "Tucson, AZ 85721" matches, whereas " Tucson AZ 85721" does not match (2.3) Write a MongoDB/Mongoose query to find all Review documents with a rating greater than 2