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

Matthew Jobraal
Matthew Jobraal
429 Points
Posted by 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?

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

1 Answer

William Li
PLUS
William Li
Courses Plus Student 26,868 Points
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"]