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

lochie westfall
lochie westfall
2,568 Points
Posted by lochie westfall
lochie westfall
2,568 Points

this is impossible , you cant change a constant

what do i do to advance?

dictionaries.swift 
let currencies = ["US" : "Dollar", "UK" : "ukCurrency", "JP" : "Yen"]

1 Answer

Chris Shaw
Chris Shaw
26,676 Points
Chris Shaw
Chris Shaw
26,676 Points

Hi Lochie,

This task has caught quite a number of users off guard because of the previous video, one thing most users miss is Amit actually shows us how to assign values to a variable/constant using an dictionary in the video prior to the challenge.

Here is the question for task two:

Assign the value for key "UK" to a constant named ukCurrency.

So as I mentioned Amit does show us how to retrieve values from an dictionary using a key, we do this by using the square brackets and passing a string which in this case is UK.

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

Happy coding!