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

Nate Rohweder
Nate Rohweder
9,911 Points
Posted by Nate Rohweder
Nate Rohweder
9,911 Points

It is telling me that I need to have let uKCurrency defined. As far as I can see it is defined. I don't see the error.

Trying to assign the value from the dictionary currencies to a new constant named uKCurrency using the removeValueForKey function. Something isn't working though.

dictionaries.swift 
let currencies = ["US": "Dollar", "UK": "Pound", "JP": "Yen"]
let uKCurrency = currencies.removeValueForKey("UK")
Nate Rohweder
Nate Rohweder
9,911 Points
Nate Rohweder
Nate Rohweder
9,911 Points

Seems like it would work if currencies was a variable, but the prompt requires it stay a constant.

1 Answer

Malerie Anderson
Malerie Anderson
4,941 Points
Malerie Anderson
Malerie Anderson
4,941 Points

Hi Nate,

The challenge asks for you to assign the value of UK to ukCurrency. You don't need to remove the value of UK, you just need to access it.

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

Hope this helps!