Treehouse | Community | Nil Values in Collections

💥 2026 New Year's Sale 💥 Take 50% off your first 6 months! (new subscribers only, renews at regular price).

Join the Treehouse affiliate program and earn 25% recurring commission!

Newest
- Newest
- Active
- Unanswered
- Featured
All Topics

Amir Chefner
5,200 Points
In a code challenge, when I hit preview it doesn't show any error yet the check says "your code could not compile", why?

Posted February 13, 2016 12:04am by Amir Chefner

Amir Chefner
5,200 Points
1 Answer
Mahmoud Rajabzadeh-Mashhadi
489 Points
Switch

Posted February 12, 2016 6:03pm by Mahmoud Rajabzadeh-Mashhadi

Mahmoud Rajabzadeh-Mashhadi
489 Points
1 Answer
lrcs
2,172 Points
how to make a swift app that fits all iPhones?

Posted February 12, 2016 5:04pm by lrcs

lrcs
2,172 Points
- iOS
1 Answer
William Hartvedt Skogstad
5,857 Points
Need help with the switch statement

Posted February 12, 2016 12:00pm by William Hartvedt Skogstad

William Hartvedt Skogstad
5,857 Points
3 Answers
becky hayes
2,226 Points
Trying to return a computed property that calculates fahrenheit using an input of celcius..think the error is in my sum

Posted February 12, 2016 1:57am by becky hayes

becky hayes
2,226 Points
2 Answers
William Hartvedt Skogstad
5,857 Points
Can't understand what to type for Tag

Posted February 11, 2016 10:06pm by William Hartvedt Skogstad

William Hartvedt Skogstad
5,857 Points
2 Answers
Chris Konopasek
8,119 Points
Building a Simple iPhone App with Swift 2.0 - Swift Recap Part 1 - Answer

Posted February 4, 2016 11:41pm by Chris Konopasek

Chris Konopasek
8,119 Points
3 Answers
Thomas Katalenas
11,033 Points
don' t return a nil!!

Posted February 2, 2016 10:49pm by Thomas Katalenas

Thomas Katalenas
11,033 Points
- iOS
2 Answers
Douglas Counts
10,623 Points
XCode projects don't download

Posted January 23, 2016 3:51pm by Douglas Counts

Douglas Counts
10,623 Points
3 Answers
Samar Khanna
1,757 Points
What was the shortcut Pasan used to set the size of the label?

Posted April 28, 2015 10:07am by Samar Khanna

Samar Khanna
1,757 Points
1 Answer
abdullah alhashmi
1,222 Points
I have a new mac but can't see Empty Application template? Can Anyone help??

Posted April 27, 2015 12:38pm by abdullah alhashmi

abdullah alhashmi
1,222 Points
6 Answers
Paul Denlinger
2,380 Points
Error: Use of unresolved identifier 'Booktype'

Posted April 26, 2015 2:02pm by Paul Denlinger

Paul Denlinger
2,380 Points
2 Answers
PLUS

Mohammad Fadino Khairuman
Courses Plus Student 2,191 Points
Where can I get more practice?

Posted April 26, 2015 12:21pm by Mohammad Fadino Khairuman

Mohammad Fadino Khairuman
Courses Plus Student 2,191 Points
- iOS
1 Answer
lance samaria
3,642 Points
Using a for-in loop with a switch statement

Posted April 26, 2015 7:07am by lance samaria

lance samaria
3,642 Points
16 Answers
haydensteed
1,328 Points
How do i save

Posted April 26, 2015 1:43am by haydensteed

haydensteed
1,328 Points
- iOS
1 Answer
PLUS

Junaid Abd
Courses Plus Student 32 Points
App Paused - Thread 1: signal SIGABRT

Posted April 24, 2015 4:58pm by Junaid Abd

Junaid Abd
Courses Plus Student 32 Points
- iOS
1 Answer
Abbey Jackson
1,660 Points
Do not understand what the error message means. It tells me I have the correct string but not the correct format.

Posted April 24, 2015 2:13am by Abbey Jackson

Abbey Jackson
1,660 Points
1 Answer
Jared Watkins
10,756 Points
iOS Simulator isn't running my app

Posted April 23, 2015 6:07pm by Jared Watkins

Jared Watkins
10,756 Points
- iOS
1 Answer
Samar Khanna
1,757 Points
Why do i need to pass in two arguments in the init method when that was already being done earlier?

Posted April 23, 2015 12:00pm by Samar Khanna

Samar Khanna
1,757 Points
1 Answer
javier graterol
6,056 Points
object-Oriented swift

Posted April 23, 2015 4:17am by javier graterol

javier graterol
6,056 Points
2 Answers
Gaston Garcia
2,159 Points
This code runs fine in XCode: init(){ self = Quarter }

Posted April 23, 2015 12:05am by Gaston Garcia

Gaston Garcia
2,159 Points
1 Answer
PLUS

Matt Lassiter
Courses Plus Student 10,947 Points
Value Types Vs Reference - Reference advantages

Posted April 22, 2015 11:11pm by Matt Lassiter

Matt Lassiter
Courses Plus Student 10,947 Points
2 Answers
Benjamin U'Sellis
1,762 Points
Getting a top_level_code error when trying to run showFunFact func

Posted April 22, 2015 3:29pm by Benjamin U'Sellis

Benjamin U'Sellis
1,762 Points
0 Answers
PLUS

Junaid Abd
Courses Plus Student 32 Points
Help with array

Posted April 22, 2015 1:41pm by Junaid Abd

Junaid Abd
Courses Plus Student 32 Points
- iOS
1 Answer
Beth Knight
4,244 Points
Wants "as!" instead of "as"

Posted April 21, 2015 8:34pm by Beth Knight

Beth Knight
4,244 Points
3 Answers
PLUS

Charles Cleland
Courses Plus Student 510 Points
Nothing is displaying in the results pane when I enter the tuple code

Posted March 13, 2015 11:52am by Charles Cleland

Charles Cleland
Courses Plus Student 510 Points
1 Answer
David Gray
1,029 Points
I don't think I understand the question.

Posted February 8, 2014 8:12pm by David Gray

David Gray
1,029 Points
1 Answer
mnwogdbvte
16,349 Points
performSegueWithIdentifier not performing

Posted February 2, 2014 8:12pm by mnwogdbvte

mnwogdbvte
16,349 Points
- iOS
2 Answers
Adam Soffer
1,604 Points
UITableView Scrolling is Choppy When Displaying Images From Web

Posted January 22, 2014 4:30pm by Adam Soffer

Adam Soffer
1,604 Points
- iOS
11 Answers
PLUS

Andrew Neary
Courses Plus Student 939 Points
Help with simple variable problem

Posted November 29, 2013 3:55am by Andrew Neary

Andrew Neary
Courses Plus Student 939 Points
- iOS
9 Answers

Prev Page 884 of 2927 Next

Posting to the forum is only allowed for members with active accounts.
Please sign in or sign up to post.