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

ryan plunkett
ryan plunkett
3,500 Points
Posted by ryan plunkett
ryan plunkett
3,500 Points

Selecting various elements by class name? Where did I go wrong?

//In the following tasks you'll be required to select various elements on the index.html page.

//In the app.js file on line 1, select all links in the nav element and assign them to navigationLinks.

// in index.html it shows...

<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>

//So my answer was...

let navigationLinks = document.getElementsByTagName('nav');

//Its telling me it only selected 1 element when it was expecting 3...

js/app.js 
let navigationLinks = document.getElementsByTagName('nav');
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

Jennifer Nordell
seal-mask
STAFF
.a{fill-rule:evenodd;}techdegree
Jennifer Nordell
Treehouse Teacher
Jennifer Nordell
.a{fill-rule:evenodd;}techdegree
Jennifer Nordell
Treehouse Teacher

Hi there! The challenge is asking you to select all links inside the nav element. But your code simply selects all the nav elements. Take a look at the HTML. There is only one nav element present.

So you need to select the links inside that element (of which there are 3). Remember, we use the anchor tag to make a link or <a>. So, instead of selecting 'nav', try selecting 'nav a'.

Hope this helps! :sparkles:

Jennifer Nordell
seal-mask
.a{fill-rule:evenodd;}techdegree
Jennifer Nordell
Treehouse Teacher
Jennifer Nordell
.a{fill-rule:evenodd;}techdegree
Jennifer Nordell
Treehouse Teacher

Woops! You are correct. You should use a document.querySelectorAll('nav a') which will return all the links inside the nav element. I forgot to mention that bit :smiley:

ryan plunkett
ryan plunkett
3,500 Points
ryan plunkett
ryan plunkett
3,500 Points

Thank you, It didnt work with document.getElementsByTagName(('nav a'); but it did work with document.querySelectorAll('nav a');