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

JavaScript JavaScript and the DOM (Retiring) Responding to User Interaction Adding an Event Listener

add a click event listener to button. Pass an empty function as the second parameter.

I don't know what I'm missing. Can you please help with this question.

app.js
var warning = document.getElementById("warning");
var button = makeItRed;
button.EventListner("click", );
index.html
<!DOCTYPE html>
<html>
    <head>
        <title>Adding an Event Listener</title>
    </head>
    <link rel="stylesheet" href="style.css" />
    <body>
        <div id="warning">
            Warning: My background should be red!
        </div>
        <button id="makeItRed">Make It Red!</button>
        <script src="app.js"></script>
    </body>
</html>

1 Answer

Emmanuel C
Emmanuel C
10,636 Points

You need to get the element with the id makeItRed and the function is actually addEventListener, Then the second parameter would be an empty function, so...

var button = document.getElementById('makeItRed');
button.addEventListener("click", function() {});