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

Kimberly Dolcin
Kimberly Dolcin
4,369 Points
Posted by Kimberly Dolcin
Kimberly Dolcin
4,369 Points

What is wrong with my add event listener function????

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app.js 
const warning = document.getElementById("warning");
let button = document.getElementById("makeItRed");
button.addEventListener("click", () => { warning.style.backgroundcolor=red;});
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

Seth Kroger
Seth Kroger
56,413 Points
Seth Kroger
Seth Kroger
56,413 Points

You have the right idea here. There are just two picky little things causing it to not work. First the color should be a string. 'red' with quotes around it. Second, the style property names are camel-cased, so backgroundColor needs to have the "C" capitalized.