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JavaScript Callback Functions in JavaScript Callbacks with Timers Triggering an Animation

Heidi S Wolff
Heidi S Wolff
12,757 Points
Posted by Heidi S Wolff
Heidi S Wolff
12,757 Points

Triggering an Animation-Callback Functions in JavaScript

The animation challenge has stumped me.

My code is below.

const section = document.getElementById("animateMe");

function startAnimation() { (startAnimation, 2000); document.getElementById = "spin"; })

app.js 
const section = document.getElementById("animateMe");

function startAnimation() {
  //Applies spinning animation to section element
  section.className = "spin";
}
index.html 
<!DOCTYPE html>
<html lang="en">
    <head>
        <title></title>
        <link rel='stylesheet' href='styles.css'>
    </head>
    <body>
        <section id="animateMe">
            <p>Animate Me in 2 Seconds!</p>
        </section>
        <script src='app.js'></script>
    </body>
</html>

1 Answer

Dane Parchment
MOD
Dane Parchment
Treehouse Moderator 11,075 Points
Dane Parchment
Dane Parchment
Treehouse Moderator 11,075 Points

All you need to do is use the setTimeout() function and you can set when the function runs. So just do this:

setTimeout(startAnimation, 2000);

That should work.

Heidi S Wolff
Heidi S Wolff
12,757 Points
Heidi S Wolff
Heidi S Wolff
12,757 Points

const section = document.getElementById("animateMe");

setTimeout(startAnimation, 2000);

I know that I'm doing something wrong.

Dane Parchment
Dane Parchment
Treehouse Moderator 11,075 Points
Dane Parchment
Dane Parchment
Treehouse Moderator 11,075 Points

Make sure that you are using the default code within the challenge:

const section = document.getElementById("animateMe");

function startAnimation() {
  //Applies spinning animation to section element
  section.className = "spin";
}

As the code that you showed modified within your question, namely: 

function startAnimation() { (startAnimation, 2000); document.getElementById = "spin"; })

Is wrong.