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

Posted by Misir Mahmudov
Misir Mahmudov
555 Points

Hello. What is wrong with my code here? let ukCurrency = currencies.removeValueForKey("UK")

Hello The question says: Assign the value for key "UK" to a constant named ukCurrency.

my code:

let ukCurrency = currencies.removeValueForKey("UK")

can you please tell me what I am doing wrong here? and how is it supposed to be done?

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

2 Answers

John Sanchez
John Sanchez
3,325 Points
John Sanchez
John Sanchez
3,325 Points

The question doesn't want you to remove the key-value pair from the dictionary, which is what your code is doing. Instead, use 

let ukCurrency = currencies["UK"]
Luis Calderon
Luis Calderon
1,665 Points
Luis Calderon
Luis Calderon
1,665 Points

You are removing the value. The question wants you to add the value of the key to a constant. let ukCurrency = ("pound")