Untitled

<!DOCTYPE html>
<html>

<head>
    <meta charset="utf-8" />
    <meta http-equiv="X-UA-Compatible"
          content="IE=edge">
    <title>Page Title</title>
    <meta name="viewport"
          content="width=device-width, initial-scale=1">

    <script src="main.js"></script>
</head>

<body>

    <button id="name">Click me</button>

    <script>

        let myButton = document.getElementById('name')

        class Test {
            constructor() {
                this.userSelection = 'none';
            }

            assignValue(selection) {
                this.userSelection = selection;
            }

            selectCharacter() {

            }
        }

        let myTest = new Test

        myButton.addEventListener("click", () => {
            myTest.assignValue(myButton)
            console.log('in')
            console.log(myTest.userSelection)
        })

    </script>
</body>

</html>