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

Challenge Task 2 of 3 Next, add a click event listener to button. Pass an empty function as the second parameter.

Challenge Task 2 of 3 Next, add a click event listener to button. Pass an empty function as the second parameter. I do not understand. Please can you write the code so that I can understand ? Thanks.

app.js
var warning = document.getElementById("warning");
var button  = document.getElementById("makeItRed");
button.addEventListener()("click", function () {

});
:))) check :))
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

Antony .
Antony .
2,811 Points

You got everything right except the set of parentheses in front of your addEventListener method, and the big ol' chunk of parentheses and colons at the bottom of your code.

Anyways, your code should look like this:

var warning = document.getElementById("warning");
var button  = document.getElementById("makeItRed");

button.addEventListener('click', function() {

});
RODRIGO MARTINEZ
RODRIGO MARTINEZ
5,912 Points

I used exactly this same code. And it's not working.

Antony .
Antony .
2,811 Points

Try re-opening your browser.

RODRIGO MARTINEZ
RODRIGO MARTINEZ
5,912 Points

re opened browser and worked. thanks