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

William Bowie
PLUS
William Bowie
Courses Plus Student 499 Points
Posted by William Bowie
William Bowie
Courses Plus Student 499 Points

Stuck on Assign the value for key "UK" to a constant named ukCurrency in the dictionary part of Swift basics

Im having trouble with one of the Challenges, not sure where Im going wrong...

one of the original lines before I put the 2nd line in was... let ukCurrency = currencies.removeValueForKey("UK")

it says

Assign the value for key "UK" to a constant named ukCurrency.

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

1 Answer

Steve Hunter
Steve Hunter
57,712 Points

Hi there,

You want to use the key UK to assign its corresponding value into the constant. 

let ukCurrency = currencies["UK"]

This accesses the dictionary called currencies with the key "UK" - the dictionary returns the associated value of that key/value pair, which will be "Pound"

I hope that makes sense.

Steve.

Steve Hunter
Steve Hunter
57,712 Points

No problem!! :-)