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

Posted by Nikolaos Ntemos
Nikolaos Ntemos
3,271 Points

Is this a bug?

I am trying to complete Task 2 on the Dictionaries Section but i don't now what is the matter with this code:

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

let ukCurrency = currencies

ukCurrency["UK"]

I xcode everything seems fine.

Is this a bug?

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

let ukCurrency = currencies

ukCurrency["UK"]

2 Answers

Brendan Whiting
.a{fill-rule:evenodd;}techdegree seal-36
Brendan Whiting
Front End Web Development Techdegree Graduate 84,738 Points

Your code runs, it's just not accomplishing the outcome that the challenge wants. They want you to put the just value of the UK currency inside the constant ukCurrency. You're putting the whole dictionary (all the currencies) into ukCurrency. Try this:

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

let ukCurrency = currencies["UK"]
Nikolaos Ntemos
Nikolaos Ntemos
3,271 Points
Nikolaos Ntemos
Nikolaos Ntemos
3,271 Points

Thank you ! That was the point :-)