Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

JavaScript JavaScript and the DOM (Retiring) Traversing the DOM Child Traversal

Posted by Robert Crocker
Robert Crocker
3,748 Points

Can you help me understand why this code isn't working?

I run this on my personal computer and I see the p elements changing to blue. I passed the two prior test, but now I get an error telling me a prior test is breaking. scratching head

app.js 
const section = document.querySelector('section');
let paragraphs = section.children;

for(p of paragraphs) {
  p.style.color = "blue";
}
index.html 
<!DOCTYPE html>
<html>
    <head>
        <title>Child Traversal</title>
    </head>
    <body>
        <section>
            <p>This is the first paragraph</p>
            <p>This is a slightly longer, second paragraph</p>
            <p>Shorter, last paragraph</p>
        </section>
        <footer>
            <p>&copy; 2016</p> 
        </footer>
        <script src="app.js"></script>
    </body>
</html>

1 Answer

Matthew Long
Matthew Long
28,407 Points
Matthew Long
Matthew Long
28,407 Points

I'm not sure what the issue could be. Maybe it's workspaces and the for...of loop? A normal for loop will work. Wish I could figure it out with for...of though. Also, scratching head..

for (let i = 0; i < paragraphs.length; i++) {
  paragraphs[i].style.color = "blue"
}
Robert Crocker
Robert Crocker
3,748 Points

Yeah, the standard for loop works, so this might be a bug for Treehouse to investigate.