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

Stellah Avanthi
seal-mask
.a{fill-rule:evenodd;}techdegree seal-36
Stellah Avanthi
Front End Web Development Techdegree Graduate 18,685 Points
Posted by Stellah Avanthi
.a{fill-rule:evenodd;}techdegree seal-36
Stellah Avanthi
Front End Web Development Techdegree Graduate 18,685 Points

This Code is not covered in the previous Videos and was asked in the code challenge, I am not able to figure it out.

In this challenge, you're going to select various elements from index.html. First, select all links inside the <nav> element and assign them to the variable navigation links. (HINT: Use a descendant selector to match elements that are descendants of an element.)

Kindly help.

I tried to refer to MDN but not able to get it solved.

js/app.js 
let navigationLinks = document.querySelectorAll(':nav .ul .li');
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>

3 Answers

Richard Luo
Richard Luo
4,427 Points

The simple solution is let navigationLinks = document.querySelectorAll('nav a');

Steven Parker
Steven Parker
231,248 Points
Steven Parker
Steven Parker
231,248 Points

Here's some hints regarding issues with the selector argument: (':nav .ul .li'):

  • a descendant selector generally only needs to specify the outer container and the actual target
  • since "nav" is a tag name, it doesn't need any punctuation prefix
  • links are implemented using anchor ("a") elements
  • "a" is also a tag name, so it will not need a prefix either
  • for future reference: a colon (":") prefix is for a pseudo element, and a period (".") is for a class name

Keep in mind that the task is to "select all links inside the <nav> element".

Steven Parker
Steven Parker
231,248 Points
Steven Parker
Steven Parker
231,248 Points

Those are pretty explicit hints. If you apply them, I guarantee you'll pass the first task. :wink: