example.html

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<style>
    html,
    body {
        margin: 0;
        height: 100vh;
    }

    * {
        box-sizing: border-box;
    }

    #myContainer {
        height: 100%;
        width: 100%;
        margin: 0;
    }
</style>

<body>
    <div id="myContainer"></div>
    <img id="imgOne" src="space1.jpg" alt="im1" hidden>
    <script src="./transition/transition.js"></script>
    <script>
        function createCanvas(){
            const container = document.querySelector('#myContainer');
            const img1=document.querySelector('#imgOne');
            const transition = new Transition(
                container,
                img1,
                "space2.jpg",
                "dis.jpg",
                {
                    duration: 1200
                }
            );
            container.addEventListener('click', () => {
                if (transition.transitionFinished) {
                    return transition.reverse()
                }
                transition.start()
            })
        }
        createCanvas()
        
    </script>
</body>

</html>