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

Fernando Jimenez
PLUS
Fernando Jimenez
Courses Plus Student 8,203 Points
Posted by Fernando Jimenez
Fernando Jimenez
Courses Plus Student 8,203 Points

I am kind of stuck in here.

let navigationLinks = document.getElementsByTagName(".nav.ul.li.a");

I am trying to get all the <a href.... that are within a nav html tag.. So i am not sure if you can do the same thing you do on css to select tags within tags

For example:

// all p elements within .container class

.container p{ //css styles. }

js/app.js 
let navigationLinks = document.getElementsByTagName(".nav.ul.li.a");
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>

1 Answer

furkan
furkan
11,733 Points
furkan
furkan
11,733 Points

You can select all the a elements in the nav by usong a querySelectorAll(). Like this:

let navigationLinks = document.querySelectorAll("nav > ul > li > a");

Hope that helps. Also check out mozilla developer network to understand more about javascript, comes handy! ?

furkan
furkan
11,733 Points

Just to add on, you should not use getElementById() if you will be selecting several elements. Remember, id can only be given to one element so will return only one value. So instead, use querySelectorAll(), or getElementsByClassName() if all the elements share the same class.