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 Eric Wilson
Eric Wilson
13,133 Points

Accessing Last Paragraph Element

Hello, I'm trying to work on part 2 of this challenge and I am encountering some trouble. How would I go about turning the last paragraph blue? I tried to access it using DOM traversal and I am returned with a type error.

Thanks!

app.js 
var section = document.querySelector('section');
let paragraphs = section.children;
let footer = section.parentNode.lastElementChild;
let footerP = footer.children;



for (let i = 0; i < paragraphs.length; i++){

  paragraphs[i].style.backgroundColor = 'blue';

}

 footerP.style.backgroundColor = '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; 2019</p> 
        </footer>
        <script src="app.js"></script>
    </body>
</html>

2 Answers

Eric Wilson
Eric Wilson
13,133 Points
Eric Wilson
Eric Wilson
13,133 Points

Thank you! After taking another look I realized I was changing background color and not text color. Silly mistake.

KRIS NIKOLAISEN
KRIS NIKOLAISEN
54,972 Points
KRIS NIKOLAISEN
KRIS NIKOLAISEN
54,972 Points

You only need to change the color for the section paragraphs. This doesn't include the paragraph in the footer so remove all the code related to that. Also make sure you are changing the text color and not the background color.