Facebook Birthday Liker - likes your friends' posts for your birthday

fb_bd_liker.js

/**
 * 
 * Facebook Birthday Liker -
 * Likes your friends' posts for your birthday
 * 
 * Usage:
 * 1. Face the fact that you're an ungrateful, lazy being
 * 2. Paste the following code in your console
 * 
 */
 
!function (d) {
  
  'use strict';
  
  Node.prototype.getElementsByRegex = function(q, r) {
    return [].slice.call(this.querySelectorAll(q))
      .filter(function (el) { return r.test(el.innerText); });
  };
  
  var _postsList = 
    // Assuming at least one of your friends is traditional.
    d.getElementsByRegex('ul.uiCollapsedList', /happy birthday/i)[0];
      
  var _postsCount =
    // Assuming it is your birthday
    +d.getElementsByRegex('h5', /\d+ friends posted on your timeline for your birthday./)[0].innerText.match(/\d+/);
    
  var _moreLink;
  
  function _loadAllPosts (cb) {
    if (_postsList.children.length === _postsCount) return cb();
    (_moreLink = _postsList.getElementsByRegex('a', /^see \d+ more posts$/i)[0]) && _moreLink.click();
    setTimeout(function () {
      _loadAllPosts(cb);
    }, 1000);
  }
  
  function _likeEmAll () {
    _postsList
      .getElementsByRegex('a.accessible_elem', /^like$/i)
      .forEach(function (el) { el.click(); });
  }
  
  _loadAllPosts(function () {
    _likeEmAll();
    delete Node.prototype.getElementsByRegex;
  });
  
}(document);