let main = function() {
    let $div = $('div');
    let $btn_hide = $('#hide-btn');
    let $btn_show = $('#show-btn');

    $btn_hide.on("click", function() {
        $div.fadeOut(3000);
    })
    $btn_show.on("click", function() {
        $div.fadeIn(3000);
    })
    let $a = $(`<a id="my-a" href="https://acwing.com" target="_blank">
            AcWing
        </a>`);
    $div.on("click", function() {
        $div.append($a);
        $div.css("background-color", "purple")
    })
    $div.dblclick(function() {
        $div.empty();
   })

   console.log($div.css("background-color"));
   console.log($div.text());
}


export {
    main
}