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David Avila
Full Stack JavaScript Techdegree Student 5,410 PointsHow to pick what to select without classes or ids?
The instructions are to select the <li> elements from the navigation bar only.
I've added the class navButton to the html elements <li> that are nested in the <nav> so that I could select them using either document.getElementsByClassName('navButton'); or document.querySelectorAll('.navButton'); but neither way is accepted by the exercise.
So I'm wondering how can I select those 3 <li> without selecting the rest of the <li> in the html without making use of classes, id's or attributes?
Thnx
let navigationLinks = document.getElementsByClassName('navButton');
let galleryLinks;
let footerImages;
<!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 navButton">Portfolio</a></li>
<li><a href="about.html" class="navButton">About</a></li>
<li><a href="contact.html" class="navButton">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>© 2016 Nick Pettit.</p>
</footer>
</div>
<script src="js/app.js"></script>
</body>
</html>
3 Answers
Steven Parker
231,248 PointsI think the purpose of the challenge is to select without modifying the HTML.
Also, the tag for a "link" is "a". An "li" tag represents a list item.
Remember that querySelectorAll will use combined selectors just like CSS. This is a good place to use a descendant selector that combines the nav element and the a element names separated by a space.
Steven Parker
231,248 PointsSince the intermediate elements are not important to the selection, you can shorten the selector (and improve it's efficiency) to just "nav a".
David Avila
Full Stack JavaScript Techdegree Student 5,410 PointsAwesome, thank you very much!
David Avila
Full Stack JavaScript Techdegree Student 5,410 PointsDavid Avila
Full Stack JavaScript Techdegree Student 5,410 PointsThank you very much for pointing out that I could use a descendant selector, I don't think that is actually mentioned on the vids. If it is I must have missed it.
anyhow, I used let navigationLinks = document.querySelectorAll('nav ul li a') and It works like a charm.
Cheers :)