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aidan cheifetz
797 PointsI'm doing everything same as in the video, but it won"t work.
i've tried many times and it's not working. I even tried doing it in the actual swift program and it doesn't work there either.
let currencies = ["US" : "Dollar", "UK" : "Pound", "JP" : "Yen"]
let ukCurrency = currencies.removeValueForKey("UK")
2 Answers
Martin Wildfeuer
Courses Plus Student 11,071 PointsYou cannot remove objects from an array assigned to a constant, as it is immutable. If you wanted to do that, it had to be mutable, that is a variable instead of a constant. Have a look at the compiler error message, it will tell you just that.
Nevertheless, the task is described as follows
Assign the value for key "UK" to a constant named ukCurrency.
So there is no need to remove the UK currency from the original currencies array.
Just assign it to the ukCurrency constant and it should be fine.
let currencies = ["US" : "Dollar", "UK" : "Pound", "JP" : "Yen"]
let ukCurrency = currencies["UK"]
aidan cheifetz
797 Pointsthank you so much! Sorry for the trouble I'm pretty new to this.
Martin Wildfeuer
Courses Plus Student 11,071 PointsYou are welcome! No worries, that's what this forum is for. Keep on learning and you will be the one answering questions :)