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

Brian Hale
Brian Hale
525 Points
Posted by Brian Hale
Brian Hale
525 Points

code help

cant figure challenge 2. You guys need a help button that reveals the right answer!

dictionaries.swift

2 Answers

Jennifer Nordell
seal-mask
STAFF
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Jennifer Nordell
Treehouse Teacher
Jennifer Nordell
.a{fill-rule:evenodd;}techdegree
Jennifer Nordell
Treehouse Teacher

I would prefer to see what you've tried that's failing, that way we can say specifically what you haven't grasped during the videos. Here's my code:

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

First I set up the dictionary with the key/value pairs set by the challenge. In this example the keys are "US", "UK", and "JP". And the values are "Dollar", "Pound", and "Yen". I then create a new constant and assign the value of currencies with the key of "UK". That means that "Pound" will be stored in ukCurrency. Hope this helps!

Mahmoud El-Set
Mahmoud El-Set
11,602 Points
Mahmoud El-Set
Mahmoud El-Set
11,602 Points

Here you go!

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