Backlinko Click-to-tweet

tweet.js

$('a.clicktweet').click(function(event) {
        event.preventDefault();
        var theText = encodeURIComponent($(this).attr('data-tweet'));
        var theUrl = encodeURIComponent($(this).attr('data-url'));
        var theVia = encodeURIComponent($(this).attr('data-via'));
        var theEntireLink =
          'https://twitter.com/share?url=' +
          theUrl +
          '&text=' +
          theText +
          '&via=' +
          theVia;
        window.open(
          theEntireLink,
          'twitter',
          'width=600, height=300, top=' +
            ($(window).height() / 2 - 225) +
            ', left=' +
            ($(window).width() / 2 - 275) +
            ', directories=0, location=0, menubar=0, toolbar=0, scrollbars=0'
        );
      });