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

4,549 Points

Dictonary assignment

In part of dictonary task "Assign the value for key "UK" to a constant named ukCurrency."

either I am not getting the what you mean with question or missing very basic thing.

Can you please provide the solution.

2 Answers

Chris Shaw
Chris Shaw
26,676 Points

Hi Kajal,

There's plenty of solutions on the forum for this specific question which is a bit vague if you're new to Swift and programming in general, so let's break it down.

  1. Define a constant called ukCurrency
  2. From the currencies dictionary select the <key:value> pair for UK
Still confusing?

Let's remember back to dictionary basics, for each <key:value> pair we have we can access the value using the key we've specified, for example.

let myDict = ["key1": "value1", "key2": "value2"]
println(myDict["key2"]) // results in "value2" being printed to the console

So let's apply that to the challenge, if we've done everything correctly we should end up with the following.

let ukCurrency = currencies["UK"]
// ukCurrency = Pound

Hope that helps.

Thanks Chris, I was stuck on this too!

4,549 Points

thanks Chris. It worked. I was assigning in last part in vice versa.