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

Posted by John Smith
John Smith
2,184 Points

cannot pass 2nd part of question because dictionary is immutable

i can't pass the second part and the error is something about it being immutable. let ukCurrency = currencies.removeValueForKey("UK") thats my second part of the code and i can't create this constant because of currencies already being a constant. it won't let me remove the value since it is a constant. help please?

2 Answers

Damien Watson
Damien Watson
27,419 Points
Damien Watson
Damien Watson
27,419 Points

Once you have defined the currency then you can create a constant from it:

let currencies = ["US":"Dollar", "UK":"Pound", "JP":"Yen"];
let ukCurrency = currencies["UK"];
John Smith
John Smith
2,184 Points
John Smith
John Smith
2,184 Points

Thanks a lot brotha i was lost

Damien Watson
Damien Watson
27,419 Points
Damien Watson
Damien Watson
27,419 Points

No problems, glad to help.