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

dominic delong
dominic delong
5,023 Points
Posted by dominic delong
dominic delong
5,023 Points

Add a click event listener on the button. Pass an empty function in as the second parameter.

Have no clue what is wrong with this. someone please help.

app.js 
const warning = document.getElementById("warning");
let button = document.querySelector('#makeItRed');
$("button").click(function(){});
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>
Atıl Kurtulmuş
Atıl Kurtulmuş
4,945 Points
Atıl Kurtulmuş
Atıl Kurtulmuş
4,945 Points

You just need to assign buttons id in .html file to the button variable in .js file

const warning = document.getElementById("warning");
let button = document.getElementById("makeItRed");

1 Answer

Jennifer Nordell
seal-mask
STAFF
.a{fill-rule:evenodd;}techdegree
Jennifer Nordell
Treehouse Teacher
Jennifer Nordell
.a{fill-rule:evenodd;}techdegree
Jennifer Nordell
Treehouse Teacher

Hi there, Dominic! The challenge is wanting you to use the addEventListener() method. It looks like you're familiar with jQuery, but I don't believe they're using that framework here. If you'll look, you've already set up your button variable to hold the element it wants the event listener on. The addEventListener method takes two parameters: the event to be listened for, and a function.

Give it another try with these hints in mind, but let me know if you're still stuck! :sparkles: