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

Posted by abdullah alhashmi
abdullah alhashmi
1,222 Points

Can someone help?

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

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

1 Answer

Chris George
Chris George
9,373 Points

Hey Abdullah, Since you are trying to access the the value of a key in the dictionary "currencies", you must specify that you want to access a key in that dictionary. 

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

All I did was change the ["UK"] to currencies["UK"], so your program knows you want to access the key "UK" from your currencies dictionary.

abdullah alhashmi
abdullah alhashmi
1,222 Points

THANX CHRIS