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iOS Swift Basics (retired) Collections Modifying an Array

Posted by Nikhil Pandey
Nikhil Pandey
1,418 Points

Error in 3rd quiz question for modifying array

The 3rd quiz question in "Modifying Arrays" ask for inserting "Learn iOS" at the 2nd place in todo . I am using todo.insert("Learn iOS", atIndex: 1) but its showing a bummer stating that your todo has wrong value in it. I think there is some error in this quiz question. Please look into this.

arrays.swift 
var todo = ["Learn Swift", "Build App", "Deploy App"]
todo.append ("Debug App")
todo.append("Fix Bugs")
todo.removeAtIndex(1)
let item = todo.removeAtIndex(1)
todo.insert("Learn ios", atIndex: 1)

2 Answers

Chris Shaw
Chris Shaw
26,676 Points
Chris Shaw
Chris Shaw
26,676 Points

Hi Nikhil,

As I mentioned in your other question (https://teamtreehouse.com/forum/error-in-the-quiz-answer), you have too much code than what the challenge is asking for. As I mentioned you should only be calling removeAtIndex once for the index of 2 which will allow you to insert the new string of Learn iOS into the todo array.

var todo = ["Learn Swift", "Build App", "Deploy App"]
todo.append ("Debug App")
todo.append("Fix Bugs")
let item = todo.removeAtIndex(2)
todo.insert("Learn iOS", atIndex: 1)

NOTE: The challenge is case sensitive so you will need to ensure that words such as iOS are spelled as per what the challenge mentions or it won't pass.

Happy coding!

Nikhil Pandey
Nikhil Pandey
1,418 Points
Nikhil Pandey
Nikhil Pandey
1,418 Points

Hi Chris Yes just changes the iOS to lower case and it took it, thanks