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

pierre digbo
pierre digbo
3,762 Points
Posted by pierre digbo
pierre digbo
3,762 Points

How to assign a value for key to a constant?

let ukCurrency = currencies.removeValueForKey("UK") looks incorrect.

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

1 Answer

Farhad Mohammad Afzali
Farhad Mohammad Afzali
5,007 Points
Farhad Mohammad Afzali
Farhad Mohammad Afzali
5,007 Points

I think currencies needs to be a variable not constant. It does not let you to remove a key from the dictionary because we cannot bring changes to constant values. Try: var currencies = ["US":"Dollar","UK":"Pound","JP":"Yen"]