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) Getting a Handle on the DOM Practice Selecting Elements

Ubaid Eusufzai
PLUS
Ubaid Eusufzai
Courses Plus Student 9,621 Points

What is descendent selector, and how do I solve this? Stuck here for a couple of hours now

It hints to use a descendent selector that I am unfamiliar with.

js/app.js
let navigationLinks = document.querySelectorAll('.nav')[3];
let galleryLinks;
let footerImages;
index.html
<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <title>Nick Pettit | Designer</title>
    <link rel="stylesheet" href="css/normalize.css">
    <link href='http://fonts.googleapis.com/css?family=Changa+One|Open+Sans:400italic,700italic,400,700,800' rel='stylesheet' type='text/css'>
    <link rel="stylesheet" href="css/main.css">
    <link rel="stylesheet" href="css/responsive.css">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
  </head>
  <body>
    <header>
      <a href="index.html" id="logo">
        <h1>Nick Pettit</h1>
        <h2>Designer</h2>
      </a>
      <nav>
        <ul>
          <li><a href="index.html" class="selected">Portfolio</a></li>
          <li><a href="about.html">About</a></li>
          <li><a href="contact.html">Contact</a></li>
        </ul>
      </nav>
    </header>
    <div id="wrapper">
      <section>
        <ul id="gallery">
          <li>
            <a href="img/numbers-01.jpg">
              <img src="img/numbers-01.jpg" alt="">
              <p>Experimentation with color and texture.</p>
            </a>
          </li>
          <li>
            <a href="img/numbers-02.jpg">
              <img src="img/numbers-02.jpg" alt="">
              <p>Playing with blending modes in Photoshop.</p>
            </a>
          </li>
        </ul>
      </section>
      <footer>
        <a href="http://twitter.com/nickrp"><img src="img/twitter-wrap.png" alt="Twitter Logo" class="social-icon"></a>
        <a href="http://facebook.com/nickpettit"><img src="img/facebook-wrap.png" alt="Facebook Logo" class="social-icon"></a>
        <p>&copy; 2016 Nick Pettit.</p>
      </footer>
    </div>
  <script src="js/app.js"></script>
  </body>
</html>

2 Answers

Cory Harkins
Cory Harkins
16,500 Points

const t = document.querySelector('.mixed-box > #forum-post-meta > #forum-post-breadcrumb > #forum-post-breadcrumb-topic')

A descendant selector is simply a nested element you are querying for, in your case, you have 2 sets of <ul> elements containing links (one in a nav, and one in a header). How do you specify the right target? nav > ul > li.

Ubaid Eusufzai
Ubaid Eusufzai
Courses Plus Student 9,621 Points

Hi Cory, Thanks for your help. however, I'll need more guidance, above example gave me no clue. Could you teach me what specific command and syntax to use here?

Ubaid Eusufzai
PLUS
Ubaid Eusufzai
Courses Plus Student 9,621 Points

Could someone help me with this task? I am unable to solve it!