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?

Elyes Ben M'rad
Elyes Ben M'rad
860 Points

let currencies = ["US" : "Dollar", "UK" : "Pound", "JP": "Yen"] let ukCurrency = ["UK"] doesnt work... why ?

let currencies = ["US" : "Dollar", "UK" : "Pound", "JP": "Yen"] let ukCurrency = ["UK"] doesnt work... why ?

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

2 Answers

Hello Elyes,

It looks like your code is referencing a key without specifying the dictiornary object that holds the key-value pair.

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

might fix your problem.

I hope this helps.

-Agapito

Eduardo Rojas
Eduardo Rojas
4,084 Points

try

let ukCurrency = currencies["UK"]