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JavaScript JavaScript and the DOM Getting a Handle on the DOM Return Elements Using CSS Selectors

Rotem Aslan
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Rotem Aslan
Full Stack JavaScript Techdegree Student 4,004 Points

why its wrong ?

I made a lot of attempts and did not fully understand how to solve this question

app.js
let navigationLinks = document.querySelectorAll('nav a')
let galleryLinks = document.querySelectorAll('#gallery > ul a')
let footerImages;
index.html
<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <title>Treehouse Student | 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>Treehouse Student</h1>
        <h2>Designer</h2>
      </a>
      <nav>
        <ul>
          <li><a href="#" class="selected">Work</a></li>
          <li><a href="#">About</a></li>
          <li><a href="#">Contact</a></li>
        </ul>
      </nav>
    </header>
    <div id="wrapper">
      <section>
        <ul id="gallery">
          <li>
            <a href="#">
              <img src="img/numbers-01.jpg" alt="The number 1 painted with colors and textures.">
              <p>Experimentation with color and texture.</p>
            </a>
          </li>
          <li>
            <a href="#">
              <img src="img/numbers-02.jpg" alt="The number 2 painted with various colors blended together.">
              <p>Playing with blending modes in Photoshop.</p>
            </a>
          </li>
        </ul>
      </section>
      <footer>
        <a href="https://twitter.com/treehouse"><img src="img/twitter-wrap.png" alt="Twitter Logo" class="social-icon"></a>
        <a href="https://www.facebook.com/TeamTreehouse"><img src="img/facebook-wrap.png" alt="Facebook Logo" class="social-icon"></a>
        <p>&copy; Treehouse Student.</p>
      </footer>
    </div>
    <script src="app.js"></script>
  </body>
</html>

1 Answer

Heidi Fryzell
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Heidi Fryzell
Front End Web Development Treehouse Moderator 24,305 Points

Hi Rotem,

You are very close!

The 2nd task in the challenge is asking you to: "select all <a> elements inside the unordered list with the ID gallery and assign them to the variable galleryLinks"

So you only need to select the gallery ID and then using a descendant selector the "a" elements, to get all of the "a" tags that are descendants of that ID.

I actually think what you have might work in the real world, but the challenge wanted the simplest solution. So specifying the "ul" element was not necessary. And the ">" child combinator was not necessary either. I do think the way the task is written is confusing, it sounds like you need to specify the "ul" tag as well.

let navigationLinks = document.querySelectorAll('nav a')
let galleryLinks = document.querySelectorAll('#gallery a')
let footerImages;

I hope this helps. And happy coding!