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iOS Swift Collections and Control Flow Dictionaries in Swift Working With Dictionaries

Posted by Cole Stenger
Cole Stenger
2,210 Points

Swift Dictionaries

In the last line of code I'm trying to update the value of "CC" to "Chocolate Chip Cookie Dough", but it keeps coming back wrong. What am I missing?

dictionary.swift 
// Enter your code below

var iceCream = ["CC": "Chocolate Chip", "AP": "Apple Pie", "PB": "Peanut Butter"]

iceCream.updateValue("Rocky Road", forKey: "RR")

let applePie = ["AP"]

iceCream.updateValue("Chocolate Chip Cookie Dough", forKey: "CC")

1 Answer

Steve Hunter
Steve Hunter
57,712 Points
Steve Hunter
Steve Hunter
57,712 Points

Hi there,

The issue isn't your last line - it is your third line.

To pull a value out of a dictionary, you need to present the key to the dictionary so change:

let applePie = ["AP"]

to:

let applePie = iceCream["AP"]

Otherwise, applePie will just contain an array with a single string in it.

I hope that helps.

Steve.

Cole Stenger
Cole Stenger
2,210 Points

Thank you! I appreciate the help!

Steve Hunter
Steve Hunter
57,712 Points

No problem! :+1: :+1: