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

Stellah Avanthi
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Stellah Avanthi
Front End Web Development Techdegree Graduate 18,685 Points
Posted by Stellah Avanthi
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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
229,732 Points
Steven Parker
Steven Parker
229,732 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
229,732 Points
Steven Parker
Steven Parker
229,732 Points

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