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

Posted by brian walsh
.a{fill-rule:evenodd;}techdegree
brian walsh
Full Stack JavaScript Techdegree Student 10,997 Points

don't understand the error message

Challenge Task 2 of 3
Add a click event listener on the button. Pass an empty function in as the second parameter.
Oops! It looks like Task 1 is no longer passing.

const warning = document.getElementById("warning");
let button = document.getElementById("makeItRed");
button.addEventListner("click", function () {});
app.js 
const warning = document.getElementById("warning");
let button = document.getElementById("makeItRed");
button.addEventListner("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>
Petar Pav
Petar Pav
4,728 Points

typo... button.addEventList E ner("click", function () {});

:))) check :))

2 Answers

Matthew Long
Matthew Long
28,407 Points

Looks like you're missing an e in addEventListener(). Should work once you add it

brian walsh
.a{fill-rule:evenodd;}techdegree
brian walsh
Full Stack JavaScript Techdegree Student 10,997 Points

Ok, now i feel silly. a fresh set of eyes is always helpful, thanks.

Petar Pav
Petar Pav
4,728 Points
Petar Pav
Petar Pav
4,728 Points

it is common mistake :) nothing to bother about ;)