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charlie alton
Front End Web Development Techdegree Student 8,879 PointsI cant figure this out.
I dont remember them teaching me this in this course. I need help?
var list = document.getElementsByTagName('ul')[0];
list.addEventListener('click', function(e) {
if (e.target.tagName == 'BUTTON') {
}
});
<!DOCTYPE html>
<html>
<head>
<title>JavaScript and the DOM</title>
</head>
<link rel="stylesheet" href="style.css" />
<body>
<section>
<h1>Making a Webpage Interactive</h1>
<p>Things to Learn</p>
<ul>
<li><p>Element Selection</p><button>Highlight</button></li>
<li><p>Events</p><button>Highlight</button></li>
<li><p>Event Listening</p><button>Highlight</button></li>
<li><p>DOM Traversal</p><button>Highlight</button></li>
</ul>
</section>
<script src="app.js"></script>
</body>
</html>
1 Answer
Joseph Yhu
PHP Development Techdegree Graduate 48,635 Points- Use the
previousElementSiblingproperty fore.targetto select the<p>element that's beside each<button>element. - Use the
classNameproperty to set the classes of the selected<p>elements tohighlight.
Karla Walker
Full Stack JavaScript Techdegree Graduate 15,865 PointsKarla Walker
Full Stack JavaScript Techdegree Graduate 15,865 PointsHi charlie alton ! So the code challenge is asking you to add a class to the
<p>tag, which is the previous sibling of the button you are clicking. The<button>element you are clicking and need to reference is equal toe.target. The challenge shares a link to thepreviousElementSiblingproperty that you can use to get the<p>tag, I shared the link below:https://developer.mozilla.org/en-US/docs/Web/API/Element/previousElementSibling
Once you have the
<p>tag saved, you can useclassList.add()to add the 'highlight' class to the<p>tag.Here's a ink to the
classListdocumentation in case you need a refresher on that:https://developer.mozilla.org/en-US/docs/Web/API/Element/classList
I hope this helps! :)