JS Copy Text

function CopyURL(){
    let copy = document.createElement('textarea'),
            top = (window.pageYOffset || document.documentElement.scrollTop) - (document.documentElement.clientTop || 0),
            result;

    document.body.appendChild(copy);
    copy.value = $(this).data('url');
    copy.focus();
    copy.select();

    try {
        result = document.execCommand('copy');
    } catch (error) {

    }

    document.body.removeChild(copy);
    alert('已複製網址 ' + $(this).data('url'));
}