Welcome to the Treehouse Community
Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.
Looking to learn something new?
Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.
Start your free trial
Nebojsa Stevanovic
Full Stack JavaScript Techdegree Student 9,620 Pointsi don't quite undestand what is this about these event listener is making my brain confused
could someone explain me better what's happening here please ?
let section = document.getElementsByTagName('section')[0];
section.addEventListener('click', (e) => {
if(e.target.tagName =='INPUT'){
e.target.style.backgroundColor='red';
}
e.target.style.backgroundColor = 'rgb(255, 255, 0)';
});
<!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>JavaScript is an exciting language that you can use to power web servers, create desktop programs, and even control robots. But JavaScript got its start in the browser way back in 1995.</p>
<hr>
<p>Things to Learn</p>
<ul>
<li>Item One: <input type="text"></li>
<li>Item Two: <input type="text"></li>
<li>Item Three: <input type="text"></li>
<li>Item Four: <input type="text"></li>
</ul>
<button>Save</button>
</section>
<script src="app.js"></script>
</body>
</html>
2 Answers
Armin Kadic
16,242 PointsINPUT needs to be in caps lock.
Steven Parker
231,268 PointsYou're very close, and you have the correct conditional expression.
But the code to change the color is already there, so you don't need to add code to do that part. You just need for your conditional to enclose the existing color-changing code so it only runs when the condition is true.
Nebojsa Stevanovic
Full Stack JavaScript Techdegree Student 9,620 Pointslet section = document.getElementsByTagName('section')[0];
section.addEventListener('click', (e) => {
if(e.target.tagName=='input'){
e.target.style.backgroundColor = 'rgb(255, 255, 0)';
}
});
i did this, but still is not right code.. :/
Steven Parker
231,268 PointsTag names are always upper case (you had that part right the first time).