Treehouse | Community | Initializing Optional Values

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irem gürel
5,732 Points
please help me what is wrong?

Posted April 24, 2017 3:27pm by irem gürel

irem gürel
5,732 Points
2 Answers
Zac Duvall
3,662 Points
I cannot "implement" my move method.

Posted April 19, 2017 12:07am by Zac Duvall

Zac Duvall
3,662 Points
2 Answers
PLUS

Francisco Quintero
Courses Plus Student 1,586 Points
How do i complete this code challenge?

Posted April 18, 2017 1:36pm by Francisco Quintero

Francisco Quintero
Courses Plus Student 1,586 Points
2 Answers
Bastian Petersson
9,164 Points
HELP!!! Optionals

Posted April 17, 2017 3:34pm by Bastian Petersson

Bastian Petersson
9,164 Points
1 Answer
STEVEN PENA
13,928 Points
Your job is to assign the string containing the value for the lead actor (which for the sake of the example is at

Posted April 17, 2017 3:04am by STEVEN PENA

STEVEN PENA
13,928 Points
1 Answer
lvwdhydynw
6,443 Points
How to return a valid instance here?

Posted April 16, 2017 11:38am by lvwdhydynw

lvwdhydynw
6,443 Points
1 Answer
Diego Salas Polar
21,431 Points
I don't know what I am doing wrong with my code. Could somebody please help?

Posted April 16, 2017 1:49am by Diego Salas Polar

Diego Salas Polar
21,431 Points
1 Answer
Duong Nguyen
3,292 Points
Please tell me what I did wrong for this enumeration code challenge?

Posted April 13, 2017 5:14am by Duong Nguyen

Duong Nguyen
3,292 Points
3 Answers
PLUS

Peter Tram
Courses Plus Student 6,898 Points
Why doesn't this pass?

Posted April 12, 2017 11:12am by Peter Tram

Peter Tram
Courses Plus Student 6,898 Points
4 Answers
NIKOLA RUSEV
5,293 Points
first example with optioanal bindings

Posted April 11, 2017 3:17pm by NIKOLA RUSEV

NIKOLA RUSEV
5,293 Points
3 Answers
Kapil Soni
2,612 Points
why there is error?

Posted April 7, 2017 6:03pm by Kapil Soni

Kapil Soni
2,612 Points
1 Answer
Von Chucwuemeca
4,746 Points
New error since Xcode update: __lldb_expr_30.Person

Posted April 5, 2017 3:59pm by Von Chucwuemeca

Von Chucwuemeca
4,746 Points
3 Answers
Mackenzie Milroy
3,162 Points
I need help perfecting this to go to the next set of videos, I don't know what I'm doing incorrectly can someone please

Posted April 5, 2017 12:47am by Mackenzie Milroy

Mackenzie Milroy
3,162 Points
1 Answer
Mackenzie Milroy
3,162 Points
I need help providing an implementation for the move method, someone please walk me through it and explain the steps

Posted April 5, 2017 12:42am by Mackenzie Milroy

Mackenzie Milroy
3,162 Points
1 Answer
Tim Watkins
16,034 Points
Need help not sure how to figure out the wording

Posted April 4, 2017 3:56am by Tim Watkins

Tim Watkins
16,034 Points
4 Answers
Richard Sun
11,257 Points
Error says variables title and author are optional strings, but they aren't

Posted April 1, 2017 11:22pm by Richard Sun

Richard Sun
11,257 Points
1 Answer
Olivier de Broqueville
1,013 Points
I don't understand this exercise and how BarButton and UIBarButtonItem are related.

Posted April 1, 2017 8:23pm by Olivier de Broqueville

Olivier de Broqueville
1,013 Points
0 Answers
STEVEN PENA
13,928 Points
In both cases you can pass nil for target and action. Once you have a method, call it on the value we created in the

Posted April 1, 2017 5:48pm by STEVEN PENA

STEVEN PENA
13,928 Points
0 Answers
michaellesniak
10,443 Points
Stuck

Posted April 1, 2017 2:55pm by michaellesniak

michaellesniak
10,443 Points
1 Answer
Richard Sun
11,257 Points
Assigned value to doneButton but still says I need to assign it to doneButton

Posted March 30, 2017 11:40pm by Richard Sun

Richard Sun
11,257 Points
0 Answers
STEVEN PENA
13,928 Points
Next, add a method to the enum named button that returns an instance of the class UIBarButtonItem configured properly. A

Posted March 30, 2017 5:36pm by STEVEN PENA

STEVEN PENA
13,928 Points
0 Answers
perpetual makayi
8,441 Points
enumeration and optional in swift 3

Posted March 30, 2017 2:31pm by perpetual makayi

perpetual makayi
8,441 Points
0 Answers
perpetual makayi
8,441 Points
enumerations and optionals swift 3

Posted March 30, 2017 12:30pm by perpetual makayi

perpetual makayi
8,441 Points
2 Answers
Pranav Mahajan
2,272 Points
The question is not very clear to me

Posted March 29, 2017 7:35pm by Pranav Mahajan

Pranav Mahajan
2,272 Points
1 Answer
PLUS

Vansh Agarwal
Courses Plus Student 3,965 Points
Can someone help me with this code challenge?

Posted March 27, 2017 5:00pm by Vansh Agarwal

Vansh Agarwal
Courses Plus Student 3,965 Points
2 Answers
PLUS

Vansh Agarwal
Courses Plus Student 3,965 Points
Can someone help me with this code challenge?

Posted March 27, 2017 6:28am by Vansh Agarwal

Vansh Agarwal
Courses Plus Student 3,965 Points
2 Answers
STEVEN PENA
13,928 Points
When you tell the robot to move up (by specifying Direction.Up as the argument), the y coordinate should increase by 1.

Posted March 27, 2017 2:58am by STEVEN PENA

STEVEN PENA
13,928 Points
2 Answers
PLUS

Vansh Agarwal
Courses Plus Student 3,965 Points
I don't know why my code doesn't work.

Posted March 26, 2017 7:58pm by Vansh Agarwal

Vansh Agarwal
Courses Plus Student 3,965 Points
1 Answer
hillionaire
22,539 Points
HOW?

Posted March 22, 2017 1:22pm by hillionaire

hillionaire
22,539 Points
4 Answers
Raghav Sharma
2,207 Points
Why is the code not correct? Am I missing something?

Posted March 21, 2017 3:55pm by Raghav Sharma

Raghav Sharma
2,207 Points
1 Answer

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