Treehouse | Community | What is an Optional?

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Nikita Voloboev
4,816 Points
Why does my IDE not show culprit to have an optional value even though I have String? in the return declaration?

Posted May 13, 2016 12:56pm by Nikita Voloboev

Nikita Voloboev
4,816 Points
0 Answers
PLUS

James Killeen
Courses Plus Student 2,207 Points
Version 7.3. Hi All, I'm finding it very difficult to follow along with my version of Xcode 7.3

Posted April 15, 2016 3:38am by James Killeen

James Killeen
Courses Plus Student 2,207 Points
1 Answer
Thomas Katalenas
11,033 Points
A crash while on treehouse today lol coincidence?

Posted February 2, 2016 8:43pm by Thomas Katalenas

Thomas Katalenas
11,033 Points
2 Answers
Sujoy Singh
10,620 Points
'=' used instead of '==' in an if statement.

Posted January 13, 2016 6:54am by Sujoy Singh

Sujoy Singh
10,620 Points
1 Answer
Kashish Singal
3,368 Points
if let culprit = findApt("505"){}

Posted December 20, 2015 7:34pm by Kashish Singal

Kashish Singal
3,368 Points
3 Answers
Ramon Hurtado
1,416 Points
Okay just a quick question to clarify so when you type the func why do you have to do "-> String?"

Posted December 3, 2015 4:08am by Ramon Hurtado

Ramon Hurtado
1,416 Points
1 Answer
Antonio Montalvo
10,549 Points
Problem executing the code provided at Swift Functions and Optionals

Posted November 9, 2015 9:31pm by Antonio Montalvo

Antonio Montalvo
10,549 Points
1 Answer
PLUS

NOUR A ALGHAMDI
Courses Plus Student 5,607 Points
pleas Help :\ don't Know what is the problem :(

Posted October 3, 2015 9:10pm by NOUR A ALGHAMDI

NOUR A ALGHAMDI
Courses Plus Student 5,607 Points
2 Answers
boris said
3,607 Points
Kinda stuck getting this weird error

Posted August 26, 2015 1:41pm by boris said

boris said
3,607 Points
1 Answer
Joel Malpica
2,873 Points
Why on my sidebar does it just say "404" and not {some "404"}?

Posted August 8, 2015 3:30pm by Joel Malpica

Joel Malpica
2,873 Points
3 Answers
Kieran Roberts
8,355 Points
Pretty stuck on this one. Can somebody please show me the code so I can workout where I am going wrong, cheers.

Posted August 1, 2015 9:43am by Kieran Roberts

Kieran Roberts
8,355 Points
1 Answer
Johnny Manning
1,079 Points
My XCode returns the string "404" and not {some "404"} as it does in the video (before I've entered the !) Why?

Posted July 31, 2015 10:20am by Johnny Manning

Johnny Manning
1,079 Points
1 Answer
Lauren Hibbs
1,872 Points
Swift 1.2 and Optionals?

Posted July 19, 2015 9:12pm by Lauren Hibbs

Lauren Hibbs
1,872 Points
1 Answer
Guilherme Kunzler
1,433 Points
Is this a good solution as well?

Posted June 20, 2015 2:03am by Guilherme Kunzler

Guilherme Kunzler
1,433 Points
0 Answers
PLUS

Justin Bower
Courses Plus Student 4,682 Points
Did Apple drop convention of putting "Some" in front of optionals?

Posted June 3, 2015 11:57pm by Justin Bower

Justin Bower
Courses Plus Student 4,682 Points
1 Answer
Ryan Ferguson
4,786 Points
Exact same code; not getting a struct.

Posted May 23, 2015 3:06am by Ryan Ferguson

Ryan Ferguson
4,786 Points
2 Answers
Paula Samuels
1,853 Points
What in the world does "unwrapping an optional" mean?

Posted May 22, 2015 7:29pm by Paula Samuels

Paula Samuels
1,853 Points
1 Answer
Christopher Mayfield
19,928 Points
when I replicate his code, I don't get a struct.

Posted May 10, 2015 11:19pm by Christopher Mayfield

Christopher Mayfield
19,928 Points
3 Answers
Robert Mylne
13,708 Points
Return nil vs return false

Posted April 26, 2015 11:29am by Robert Mylne

Robert Mylne
13,708 Points
1 Answer
Samar Khanna
1,757 Points
Understanding nil

Posted April 20, 2015 4:10pm by Samar Khanna

Samar Khanna
1,757 Points
1 Answer
Hunter Christian Davis
2,813 Points
Optionals

Posted March 28, 2015 3:16pm by Hunter Christian Davis

Hunter Christian Davis
2,813 Points
1 Answer
Jose Maldonado
623 Points
About Optionals

Posted March 27, 2015 11:05pm by Jose Maldonado

Jose Maldonado
623 Points
1 Answer
Hunter Christian Davis
2,813 Points
Optional question

Posted March 27, 2015 10:35pm by Hunter Christian Davis

Hunter Christian Davis
2,813 Points
1 Answer
Martin Langeder
3,335 Points
if culprint != nil

Posted March 19, 2015 10:50am by Martin Langeder

Martin Langeder
3,335 Points
1 Answer
James Stott
11,560 Points
How does `let name = value` resolve to a boolean?

Posted February 16, 2015 10:28pm by James Stott

James Stott
11,560 Points
2 Answers
spalak
12,151 Points
Why does the if statement return a string?

Posted November 2, 2014 6:29am by spalak

spalak
12,151 Points
3 Answers
Benjamin Bell
4,364 Points
Swift vs Scala

Posted October 29, 2014 8:10pm by Benjamin Bell

Benjamin Bell
4,364 Points
1 Answer
Ed Williams
2,969 Points
Why not return a tuple (Bool, String) instead of an optional String?

Posted October 19, 2014 12:34pm by Ed Williams

Ed Williams
2,969 Points
3 Answers
Matthew Chana
1,063 Points
Why doesn't the 'culprit' constant in the if let conditional require a "==" (is equal to)?

Posted October 13, 2014 4:48pm by Matthew Chana

Matthew Chana
1,063 Points
3 Answers
George Hamilton
2,777 Points
Is this correct? The if let syntax creates the culprit constant and assigns it the return value only if the value != nil

Posted October 6, 2014 11:24pm by George Hamilton

George Hamilton
2,777 Points
1 Answer

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