Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

iOS Swift Basics (retired) Collections Modifying an Array

Mark Hockridge
Mark Hockridge
258 Points
Posted by Mark Hockridge
Mark Hockridge
258 Points

my answer for task 3 keeps showing that I have the wrong value for my todo variable.

I have examined and re-examined your lesson video and I dont understand what I am doing wrong, any advice?

Ethan Hockridge

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

1 Answer

Sara Chicazul
Sara Chicazul
7,475 Points
Sara Chicazul
Sara Chicazul
7,475 Points

The problem is you made a slight error in Task 2 and Treehouse didn't catch it.

The array method removeAtIndex() takes an integer parameter: the index of the item you want to remove. What does this method do when you don't supply an index?