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JavaScript Callback Functions in JavaScript Callbacks and the DOM Callbacks with DOM Elements

zkb
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zkb
Front End Web Development Techdegree Graduate 13,636 Points

Where am I going wrong with my code???

I don't get this at all. I've checked everything and the useless hint only asks me if I've applied the event listener to btn1, which doesn't help one bit. Does anybody know what I did wrong? I'm totally lost here.

app.js
const btn1 = document.getElementById("button1");
const btn2 = document.getElementById("button2");
const btn3 = document.getElementById("button3");

function spinElement(event) {
  //Applies spinning animation to button element
  event.target.className = "spin";
}

btn1.addEventListener = ('click', event => {
  spinElement(event)
});

btn2.addEventListener = ('click', event => {
  spinElement(event)
});

btn3.addEventListener = ('click', event => {
  spinElement(event)
});
index.html
<!DOCTYPE html>
<html lang="en">
    <head>
        <title></title>
        <link rel='stylesheet' href='styles.css'>
    </head>
    <body>
        <section >
            <button id='button1'>Button 1</button>
            <button id='button2'>Button 2</button>
            <button id='button3'>Button 3</button>
        </section>
        <script src='app.js'></script>
    </body>
</html>

1 Answer

Bella Bradbury
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Bella Bradbury
Web Development Techdegree Student 14,361 Points

You're so close! The only thing that you need to modify for each event listener is to take out the = between addEventListner and ('click'.... Remember that you're using a method on variables that have already been assigned at the top of the code.

Here is a link to the relevant w3schools page if you're interested in reading more about the syntax of addEventListner. Happy coding!