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

Ryan Schumacher
Ryan Schumacher
1,907 Points

Bummer! Your 'ukCurrency' variable has the wrong value ("Optional("UK")") in it.

Bummer! Your 'ukCurrency' variable has the wrong value ("Optional("UK")") in it.

Help?

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

2 Answers

William Li
PLUS
William Li
Courses Plus Student 26,868 Points

Hi, Ryan Schumacher , you didn't do the dictionary look up right. let ukCurrency = "UK" only assigned the String "UK" to ukCurrency

What you should do instead is

let ukCurrency = currencies["UK"]
Ryan Schumacher
Ryan Schumacher
1,907 Points

Thanks William Li, I read the question wrong, Thanks for the help!