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iOS Swift Basics (retired) Collections Modifying an Array

Krista Keleher
Krista Keleher
515 Points

Trying to do third challenge for Arrays. Says this is incorrect: todo.insert("Learn iOS", atIndex:1)

It says I need to call the 'insert' method for the array. I'm not sure what the error is. Does someone have the the answers to all the challenges for the Arrays video? Thank you.

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

2 Answers

Chase Marchione
Chase Marchione
155,055 Points

Hi Krista,

1) Looks like you have "Deploy App" in there twice. One of the steps had you append "Debug App" and "Fix Bugs" to todo--looks like you added "Deploy App" again when what you wanted was "Debug App". 2) Your current code removes values from the second index twice.

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

Hope this helps!

Krista Keleher
Krista Keleher
515 Points

That helped! Thank you!