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

Posted by musab abdi
musab abdi
7,110 Points

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

help me answer the above practice

js/app.js 
let navigationLinks=document.getElements('nav')[0,1,2];
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>

2 Answers

Steven Parker
Steven Parker
231,271 Points
Steven Parker
Steven Parker
231,271 Points

Here's a few hints:

  • there's no "getElements" method
  • you can't use more than one index at a time
  • the "querySelectorAll" method might be good for this
  • you might also use a descendant selector to pick one type of items that are inside another
musab abdi
musab abdi
7,110 Points

give me examples of descendant selectors

Steven Parker
Steven Parker
231,271 Points
Steven Parker
Steven Parker
231,271 Points

Here's two examples:

  • all the paragraphs in articles :point_right: "article p"
  • all the links in the main section :point_right: "main a"
Steven Parker
Steven Parker
231,271 Points
Steven Parker
Steven Parker
231,271 Points

If the hints aren't helping, you might want to review the CSS Selectors course and/or the Practice CSS Selectors session.

musab abdi
musab abdi
7,110 Points
musab abdi
musab abdi
7,110 Points

give me the answer to practice so that i can comprehend how descendant bro... i will appreciate if you do that steven