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

Methee Saengow
Methee Saengow
5,474 Points
Posted by Methee Saengow
Methee Saengow
5,474 Points

Anyone can teach me on how to do the challage on the last challange "Practice Selecting Element)

https://teamtreehouse.com/library/javascript-and-the-dom-2/getting-a-handle-on-the-dom/practice-selecting-elements

I try to do but getting stuck on the descendants selector

js/app.js 
let navigationLinks;
let galleryLinks;
let footerImages;

navigationLinks = document.querySelectorAll('nav', 'a');
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

Ahmad Asyraf Bin Kamsir
Ahmad Asyraf Bin Kamsir
3,814 Points

try navigationLinks = document.querySelectorAll('nav a');

Methee Saengow
Methee Saengow
5,474 Points
Methee Saengow
Methee Saengow
5,474 Points

@Bannon Smith Thank you very much !!

eck
eck
43,038 Points
eck
eck
43,038 Points

You are very close. The document.querySelectorAll method expects a single argument to be inputted, a string using the CSS selector format.

Your problem is that you are calling the method with two strings instead of one. To get the expected result, combine your arguments into one string, i.e. 'nav a'.

I also recommend taking a look at the docs for querySelectorAll for more examples and detailed explanations.

Hope that helps!