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

Paul Denlinger
Paul Denlinger
2,380 Points

What is the best way to assign the value for a dictionary to a new constant?

My code is:

let ukCurrency = ["UK" : "Pound"] println(ukCurrency)

But I am told this is the wrong answer. What is the right way to do this?

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

1 Answer


All you are doing by creating UK Currency is adding a string to an array which is UK. The challenge I believe wants you to assign the value of the key "UK" to a new constant ukCurrency.

So you would want to say; let ukCurrency = currencies["UK"]

If you this was an oversight fair enough, but you may want to re watch or play around with array's in the playground to grasp their basic functionality.