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

Kimberly Brown
Kimberly Brown
920 Points
Posted by Kimberly Brown
Kimberly Brown
920 Points

I cannot figure out what is wrong with my syntax for this challenge and apparently cannot type it out in this box.

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

2 Answers

Stone Preston
Stone Preston
42,016 Points
Stone Preston
Stone Preston
42,016 Points

you are trying to change the key of a constant dictionary, which is not possible since its a constant.

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

you arent supposed to be changing the dictionary at all, you are just accessing one of the values it stores using a key, and assigning that value to another constant

let currencies = ["US":"Dollar", "UK":"Pound", "JP": "Yen"]
let ukCurrency = currencies["UK"] //= the value of currencies["UK"] which is "Pound"
Maher Alhasan
Maher Alhasan
974 Points
Maher Alhasan
Maher Alhasan
974 Points

it is correct! Thax Stone