Make an App that has an:

• input field
• button
• list of city, states

user should be able to enter a zip code into the field and press the button to save the city and state to the list.

Bonus:

• input should clear on submit
• Dont allow duplicate records - same zip code wont be stored 2 or more times
• Selecting an item in the list should fill the input with the zip code that was used to look up the city and state
• when a list item is selected it should appear selected
• if the user enters a new zip code while an item is selected and hits the button, the record should be updated (if valid input)
• User should be able to deselect selected item