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

Posted by Muller Steyn
Muller Steyn
1,715 Points

Create a constant named ukCurrency. Assign the value from the currencies dictionary. Use the key of "UK" to access value

Hi Just need help with this one, I ran it in Xcode and it seems fine, sorry I am a new to this Create a constant named ukCurrency. Assign the value from the currencies dictionary. Use the key of "UK" to access the value.

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

let ukCurrency = currencies ukCurrency["UK"]

Maybe I am misunderstanding the question

Thanks

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

let ukCurrency = currencies
ukCurrency["UK"]

1 Answer

Richard Lu
Richard Lu
20,185 Points
Richard Lu
Richard Lu
20,185 Points

When they mention the value from the currencies dictionary what they're trying to ask is not to assign the dictionary value itself, but the value of the key "UK". Like this:

let currencies = ["US": "Dollar","UK": "Pound","JP": "Yen"]
let ukCurrency = currencies["UK"]
Muller Steyn
Muller Steyn
1,715 Points

Awesome thanks for that, makes sense. Now I can move on