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Mohamed Monir
22,362 Pointsi do't knw what i must do
i want to know if i add next or anything else
const 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>
2 Answers
Steven Parker
231,008 PointsIn this case, something else.
Remember, the challenge says to highight the "element immediately preceding that button". So to select it starting with the button, you want something other than "next". Remember there are element properties that refer to nearby elements.
I'm guessing with a little research into element properties you can get it without an explicit spoiler.
Brent McCoy
Courses Plus Student 31,764 PointsThe challenge asks to edit the class of the preceding element of the button selected - you can do this with .previousElementSibling:
const list = document.getElementsByTagName('ul')[0];
list.addEventListener('click', function(e) {
if (e.target.tagName == 'BUTTON') {
e.target.previousElementSibling.className="highlight";
}
});
Steven Parker
231,008 PointsGive a man a fish and you feed him for a day; teach a man to fish and you feed him for a lifetime.
― Maimonides
