https://folksy.com/javascripts/dbl-click-protect.js?1657676334

1var DblClickProtect = (function() {
2  var init;
3
4  init = function() {
5    var buttons = $('.dbl-click-protect');
6
7    buttons.on('click', function(e) {
8      var button = $(e.target);
9
10      if (button.hasClass('has-been-clicked')) {
11        e.preventDefault();
12        return false;
13
14      } else {
15        button.addClass('has-been-clicked');
16        return true;
17      }
18    });
19  };
20
21  return { init: init };
22})();
23
24$(document).ready(function() {
25  DblClickProtect.init();
26});