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Start your free trialRonie Villanueva
5,351 PointsStuck in Dictionaries
I'm stuck in the test part of dictionaries. I rewatched the videos and had notes to help me remember the lecture, but i cant seem to get the answer here although i followed what the professor told me to do.
"Let's pretend a customer has ordered an ice cream. Retrieve the value for apple pie using the correct key and assign it to a constant named applePie."
Thanks in advance! :)
// Enter your code below
var iceCream = ["CC": "Chocolate Chip", "AP": "Apple Pie", "PB": "Peanut Butter"]
iceCream.updateValue("Rocky Road", forKey: "RR")
iceCream["AP"]
let applePie = iceCream["AP"]
2 Answers
Alphonso Sensley II
8,514 PointsHi Ronie, I dont think youre as "stuck" as you think you are. You made it to part 3 of the challenge! good job!
Everything is right with you code except where you inserted iceCream["AP"] above the applePie constant. Was there a reason you added this?
Stuart Wright
41,120 PointsYou just need to delete:
iceCream["AP"]
Your next line is correct.
The line that you're deleting would be fine in Playground if you just want to see what the value of iceCream["AP"] is, but you would never use it in a real program, and it's what causes the following error in the code challenge:
swift_lint.swift:23:9: error: expression resolves to an unused l-value
iceCream["AP"]
~~~~~~~~^~~~~~
Ronie Villanueva
5,351 PointsI'll remember that! Thanks so much!
Ronie Villanueva
5,351 PointsRonie Villanueva
5,351 PointsI thought that "Retrieve the value for apple pie using the correct key" means reading the dictionary. I tried to delete the iceCream["AP"] but came out as an error. I think it was a bug on the site because i refreshed the page and tried the code without, and it worked.
Thank you so much for answering my question.