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

Jeremy Casey
Jeremy Casey
3,417 Points
Posted by Jeremy Casey
Jeremy Casey
3,417 Points

how do i assign a value key for UK

I have

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

2 Answers

Arman Kussainov
Arman Kussainov
4,754 Points
Arman Kussainov
Arman Kussainov
4,754 Points

Hi, Jeremy. You do like this: currencies["UK"] = "ukCurrency"

Arman Kussainov
Arman Kussainov
4,754 Points
Arman Kussainov
Arman Kussainov
4,754 Points

You should declare it as a mutable dictionary. For example, var currencies = ...

Kai Schuerrer
Kai Schuerrer
10,830 Points
Kai Schuerrer
Kai Schuerrer
10,830 Points

Always remeber:

let == constant == not editable after init

var == variable == editable after init