Treehouse | Community | Implement a Callback

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

Join our Live Career-Building Workshop: Launch Your Tech-Adjacent Career! ⭐ Register here!

🌟 Dreaming of a bright future? 🎓 Ask about the Treehouse Scholarship program! 🚀

Curious which AI tools Treehouse developers love? ⚙️ Check them out!

🫡 Treehouse for Military offers discounts to Veterans, service members and their families!

Newest
- Newest
- Active
- Unanswered
- Featured
All Topics

Larissa de Gast
5,987 Points
Astronaut images not showing up, please review my code

Posted January 26, 2020 4:19pm by Larissa de Gast

Larissa de Gast
5,987 Points
1 Answer
Michael Cook
Full Stack JavaScript Techdegree Graduate 28,975 Points
Getting "blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource." error

Posted January 6, 2020 4:05pm by Michael Cook

Michael Cook
Full Stack JavaScript Techdegree Graduate 28,975 Points
1 Answer
Michael Cook
Full Stack JavaScript Techdegree Graduate 28,975 Points
Why use map() when you could just use forEach()?

Posted January 5, 2020 6:21pm by Michael Cook

Michael Cook
Full Stack JavaScript Techdegree Graduate 28,975 Points
3 Answers
Seokhyun Wie
Full Stack JavaScript Techdegree Graduate 21,606 Points
About person.craft

Posted December 28, 2019 8:34am by Seokhyun Wie

Seokhyun Wie
Full Stack JavaScript Techdegree Graduate 21,606 Points
1 Answer
Seokhyun Wie
Full Stack JavaScript Techdegree Graduate 21,606 Points
Two astronauts have the same names on Wikipedia. The XHR prints error.

Posted December 25, 2019 3:09pm by Seokhyun Wie

Seokhyun Wie
Full Stack JavaScript Techdegree Graduate 21,606 Points
1 Answer
Louis Maxwell
16,714 Points
The wikiURL is no longer valid at this time.

Posted December 17, 2019 11:54pm by Louis Maxwell

Louis Maxwell
16,714 Points
5 Answers
David Loder
4,987 Points
Event listener button won't go away after clicking it

Posted December 9, 2019 12:14am by David Loder

David Loder
4,987 Points
1 Answer
Rebecca Palumbo
5,506 Points
Thumbnail missing, so how do I insert a different image for the missing image?

Posted December 4, 2019 12:55am by Rebecca Palumbo

Rebecca Palumbo
5,506 Points
1 Answer
Diego Alvarez
6,680 Points
Didn't understand anything

Posted November 27, 2019 5:28am by Diego Alvarez

Diego Alvarez
6,680 Points
3 Answers
David Loder
4,987 Points
How to return this callback?

Posted November 22, 2019 4:34pm by David Loder

David Loder
4,987 Points
1 Answer
onesoftwareengineer
Full Stack JavaScript Techdegree Graduate 19,767 Points
Why does wikiUrl+person.name work ? There is a space between first and last name.

Posted November 22, 2019 9:10am by onesoftwareengineer

onesoftwareengineer
Full Stack JavaScript Techdegree Graduate 19,767 Points
1 Answer
Andrea Scianna
11,928 Points
The Global var "value" is passed and modified (!) by the functions call. But it's declared as a const !

Posted November 17, 2019 11:34am by Andrea Scianna

Andrea Scianna
11,928 Points
3 Answers
Nicolas Valdivieso
6,654 Points
Why are constructors used in this video if they haven't even been introduced?

Posted November 12, 2019 2:52am by Nicolas Valdivieso

Nicolas Valdivieso
6,654 Points
5 Answers
Anton Kilk
Full Stack JavaScript Techdegree Student 11,256 Points
Something went wrong!

Posted November 4, 2019 12:36pm by Anton Kilk

Anton Kilk
Full Stack JavaScript Techdegree Student 11,256 Points
1 Answer
Hayden Lau
4,186 Points
Why did we need "return" before callback(data) in xhr.onload

Posted November 3, 2019 1:48pm by Hayden Lau

Hayden Lau
4,186 Points
1 Answer
Abdurahman Ahmed
Front End Web Development Techdegree Graduate 14,727 Points
Cannot load all astronauts

Posted November 1, 2019 4:32pm by Abdurahman Ahmed

Abdurahman Ahmed
Front End Web Development Techdegree Graduate 14,727 Points
6 Answers
benjaminmosery
6,346 Points
Code not running properly

Posted October 28, 2019 8:57pm by benjaminmosery

benjaminmosery
6,346 Points
6 Answers
Kinkaid Nolen
4,859 Points
WikiUrl still isn't clicking to me.

Posted October 27, 2019 7:22pm by Kinkaid Nolen

Kinkaid Nolen
4,859 Points
2 Answers
Kinkaid Nolen
4,859 Points
$ { } I'm a little confused by this.

Posted October 26, 2019 5:01pm by Kinkaid Nolen

Kinkaid Nolen
4,859 Points
1 Answer
Kinkaid Nolen
4,859 Points
Can I get some help with this? [SOLVED]

Posted October 26, 2019 3:01pm by Kinkaid Nolen

Kinkaid Nolen
4,859 Points
1 Answer
Kinkaid Nolen
4,859 Points
map method

Posted October 25, 2019 6:00pm by Kinkaid Nolen

Kinkaid Nolen
4,859 Points
1 Answer
MIHA W.LEE
PHP Development Techdegree Graduate 25,452 Points
While loop

Posted October 24, 2019 7:41am by MIHA W.LEE

MIHA W.LEE
PHP Development Techdegree Graduate 25,452 Points
1 Answer
James Roberts
16,976 Points
Button removal

Posted October 22, 2019 12:02am by James Roberts

James Roberts
16,976 Points
1 Answer
Ewerton Luna
Full Stack JavaScript Techdegree Graduate 24,031 Points
In Guil's example, what's the reason for using await on the response.json( ) expression?

Posted October 18, 2019 7:59pm by Ewerton Luna

Ewerton Luna
Full Stack JavaScript Techdegree Graduate 24,031 Points
2 Answers
Ewerton Luna
Full Stack JavaScript Techdegree Graduate 24,031 Points
At 01:25, why is the status of the promise as resolved if it is showing as Promise { <pending> }?

Posted October 16, 2019 8:15pm by Ewerton Luna

Ewerton Luna
Full Stack JavaScript Techdegree Graduate 24,031 Points
0 Answers
Joshua Ouma
20,865 Points
What is wrong with my code? Someone help

Posted October 13, 2019 7:24am by Joshua Ouma

Joshua Ouma
20,865 Points
2 Answers
Ivan Frances Alcantara
4,528 Points
Why does json in call's callback represent data?

Posted October 11, 2019 8:47pm by Ivan Frances Alcantara

Ivan Frances Alcantara
4,528 Points
0 Answers
S G
6,243 Points
I didn't understand why you need to use xhr.onerror, doesn't statusText provide all the errors?

Posted October 7, 2019 4:13pm by S G

S G
6,243 Points
2 Answers
Agata Zurek
Full Stack JavaScript Techdegree Graduate 26,419 Points
How does generateHTML get its argument passed to it?

Posted October 3, 2019 6:26pm by Agata Zurek

Agata Zurek
Full Stack JavaScript Techdegree Graduate 26,419 Points
1 Answer
arturop
Full Stack JavaScript Techdegree Graduate 16,160 Points
For of in async function

Posted October 2, 2019 7:11pm by arturop

arturop
Full Stack JavaScript Techdegree Graduate 16,160 Points
0 Answers

Prev Page 8 of 10 Next

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