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

Posted by JunHa Yoon
JunHa Yoon
1,747 Points

How do you add an empty function as a parameter?

I'm stuck here. I don't know how to add the empty function.

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

button.addEventListener('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>

2 Answers

andren
andren
28,558 Points
andren
andren
28,558 Points

Your code is more or less correct, you just have a typo. You have a closing parenthesis right after the fat arrow that does not belong there, if you remove it like this:

button.addEventListener('click', ()=> {
                        });

Then you'll be able to pass.

nolobster
nolobster
22,543 Points
nolobster
nolobster
22,543 Points

You have just made a simple typo. You just need to remove this closing parenthesis.

button.addEventListener('click', ()=>) {
                        });          ^

You just need to remove this closing parenthesis.