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

Why the background doesn't turn red in this code challenge??

Need your help!

const warning = document.getElementById("warning");
let button = document.querySelector("#makeItRed");
button.addEventListener('click', () => {
    warning.style.backgroundcolor = 'red';
<!DOCTYPE html>
        <title>Adding an Event Listener</title>
    <link rel="stylesheet" href="style.css" />
        <div id="warning">
            Warning: My background should be red!
        <button id="makeItRed">Make It Red!</button>
        <script src="app.js"></script>

2 Answers

Gabbie Metheny
Gabbie Metheny
33,778 Points

In JavaScript, CSS properties need to be camelCased, so background-color will be backgroundColor. Hope that helps!

Thanks worked!