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

Alex Parkman
PLUS
Alex Parkman
Courses Plus Student 1,659 Points
Posted by Alex Parkman
Alex Parkman
Courses Plus Student 1,659 Points

Help

I don't understand what i am doing wrong in this challenge,

help?

Alex.

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

3 Answers

Devin Scheu
Devin Scheu
66,191 Points
Devin Scheu
Devin Scheu
66,191 Points

Your code should look something like this:

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

Happy Coding - Devin

Michael Hulet
Michael Hulet
47,912 Points
Michael Hulet
Michael Hulet
47,912 Points

If I remember this challenge correctly, you don't want to remove the value from the dictionary, but just copy it and assign it to a new constant, like this:

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