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JavaScript JavaScript and the DOM (Retiring) Getting a Handle on the DOM Practice Selecting Elements

Posted by Zoltán Levente Papp
Zoltán Levente Papp
3,045 Points

Why is my solution rejected? document.querySelector('nav').querySelector('ul').querySelectorAll('li')

Can you help?

js/app.js 
let navigationLinks = document.getElementsByTag('nav')[0].querySelector('ul').querySelectorAll('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>
Zoltán Levente Papp
Zoltán Levente Papp
3,045 Points

here is another solution why is rejected: document.querySelectorAll('nav ul li')

2 Answers

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

You wouldn't typically chain dom element selection methods like these. You use querySelector when you want to select a single element, and querySelectorAll when you want a collection of elements. The other selection methods aren't used as often now.

Your comment is closer to the correct solution, but it asked you to select the links inside the nav element:

let navigationLinks = document.querySelectorAll('nav a');
Zoltán Levente Papp
Zoltán Levente Papp
3,045 Points

Oh I see now. The link "<a>" had to be selected and not the list item "<li>"

Zoltán Levente Papp
Zoltán Levente Papp
3,045 Points
Zoltán Levente Papp
Zoltán Levente Papp
3,045 Points

Thanks a lot for your quick help!