demo-js.js

$(document).ready(e => {

    $('#make-green').click((e) => {
        console.log("make green!")
        $("h1").css('color', 'green');
    })

    $('#make-red').click((e) => {
        console.log("make red!")
        $("h1").css('color', 'red');
    })

    // alert('aaaaah')
    $("#login-form").submit((e) => {
        e.preventDefault();

        console.log("form submitted");

        $('#logins').prepend(`
                <div class="list-group-item">
                    ${$('#email').val()} - ${$('#password').val()}
                </div>
            `)
    })

})