Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

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

Im stuck at the challenge Assign the value for key "UK" to a constant named "ukCurrency" Please help me

Its not letting me through the code I have written for it. What is the right solution

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

2 Answers

Chris Shaw
Chris Shaw
26,650 Points

Hi Ikjap Singh,

You have the correct code for this challenge, however, it's in the wrong place and you have more code than you need.

  1. Your ukCurrency constant should be referencing the value for the key UK
  2. currencies["UK"] shouldn't be trying to assign a new value as constants can't be changed
let currencies = [ "US" : "Dollar" , "UK" : "Pound" , "JP" : "Yen" ]
let ukCurrency = currencies["UK"]

Happy coding!

Thanks for helping me out