Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

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

Munir Niaz
Munir Niaz
1,831 Points
Posted by Munir Niaz
Munir Niaz
1,831 Points

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

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

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

1 Answer

Johanns Gregorian
Johanns Gregorian
8,694 Points
Johanns Gregorian
Johanns Gregorian
8,694 Points

Here is how you can retrieve the value of a specific key:

let ukCurrency = currencies["UK"]
Luxi Really
Luxi Really
663 Points
Luxi Really
Luxi Really
663 Points

thank you! I was stuck on this one