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

Matthew Jobraal
Matthew Jobraal
429 Points

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

I'm typing: let ukCurrency = currencies.removeValueForKey("UK") But it's still giving me an error, what is wrong that I'm doing?

let currencies = ["US":"Dollar", "UK":"Pound", "JP":"Yen"]
let ukCurrency = currencies.removeValueForKey ("UK")

1 Answer

William Li
William Li
Courses Plus Student 26,868 Points

Hi, Matthew, You should use the Dictionary key lookup to retrieve the value of "UK" from the dictionary.

let ukCurrency = currencies["UK"]