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JavaScript Callback Functions in JavaScript Callbacks with Timers Triggering an Animation

Julien Arseneau
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Julien Arseneau
Full Stack JavaScript Techdegree Student 5,200 Points
Posted by Julien Arseneau
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Julien Arseneau
Full Stack JavaScript Techdegree Student 5,200 Points

Can someone tell me what is wrong with my code?

It tells me: "The callback is not the startAnimation function"

app.js 
const section = document.getElementById("animateMe");
const timeout = setTimeout(2000);
function startAnimation(section, timeout) {
  //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>

2 Answers

Elijah Quesada
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Elijah Quesada
Front End Web Development Techdegree Graduate 32,965 Points

Once page loads you would want to run the setTimeout function. The first parameter is the callback aka function you want to run and the second parameter is the delay you want to set in milliseconds. 

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


setTimeout(function startAnimation() {
  //Applies spinning animation to section element
  section.className = "spin";
}, 2000);