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iOS Swift Basics (retired) Collections What is a Dictionary?

Christopher Tavarez
Christopher Tavarez
299 Points

Help with Dictionaries and Constants

I am not sure why I cannot get my second constant to access my first constant to access a value

let currencies = ["US": "Dollar", "UK": "Pound", "JP": "Yen"] let ukCurrency = uK.pound

here I am supposed to get let uKCurrency to access the first constant.

1 Answer

Marina Alenskaja
Marina Alenskaja
9,320 Points

Hi Christopher :-)

Your mistake is at the end - to access the value of the key "UK", you must use the name of the dictionary: currencies - followed by square brackets and the key:

let currencies = ["US": "Dollar", "UK": "Pound", "JP": "Yen"]

let ukCurrency = currencies["UK"]

Hope that helps!

Christopher Tavarez
Christopher Tavarez
299 Points

ohh I see what I was doing wrong I was close to writing that but I kept adding ["UK": "Pound:]

thank you so much I am new to coding in general and wanted to start with swift. thanks for the quick response because I am trying to learn fast and effectively :)