Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

iOS Swift Basics (retired) Collections Modifying an Array

when I try to append the items together it says your todo has the wrong value

do you have to put two items together or just one I'm confused

arrays.swift
var todo = ["Learn Swift", "Build App", "Deploy App"]
 todo.append("Fix Bugs")

1 Answer

Jhoan Arango
Jhoan Arango
14,575 Points

Hello Michael:

When using the append method, it will only allow you to add ONE item to the array, at the end of it. If you want to add 2 or more items use the += operator.

var array = ["One","Two","Three" ]

// Adding one Item to the array
array.append("Four")

// Adding 2 or more items to the array
array += ["Five","Six","Seven"]

hope this helps you solve your challenge.