Remove unpopular meetup.com events

Remove unpopular events with less than 30 people attending. Change settings to run script at "document-start".

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name         Remove unpopular meetup.com events
// @namespace    http://tampermonkey.net/
// @version      0.2
// @description  Remove unpopular events with less than 30 people attending. Change settings to run script at "document-start".
// @author       You
// @match        http://www.meetup.com/find/events/*
// @grant        none
// @require http://code.jquery.com/jquery-latest.js
// ==/UserScript==
/* jshint -W097 */
'use strict';

    function loadAndRemoveUnpopularEvents()
    {
        var numPagesToLoad = 4;
        var timeToWaitForEachPageLoad = 2000;
        
        loadMoreEvents(numPagesToLoad, timeToWaitForEachPageLoad);
        
        var timeToWaitBeforeRemovingEvents = numPagesToLoad * timeToWaitForEachPageLoad;
        
        setTimeout(removeUnpopularEventsAndMakeReadable, timeToWaitBeforeRemovingEvents);
    }

    function isEventUnpopular(event)
    {
        var attendeeObj = event.find('.attendee-count');
        var attendeeCount = attendeeObj.text().split('\n')[1];
        
        if(attendeeCount < 30)
        {
            return true;
        }
        
        return false;
    }
    
    function scrollToBottom()
    {
       $(window).scrollTop($(document).height());
    }
    
    //Click the more button to get more events, otherwise 
    //if we delete events before doing this, because the scrollbar doesn't 
    //scroll as far to the bottom, the more button doesn't show up.
    function loadMoreEvents(numExtraPagesToLoad, timeToWaitForEachPageLoad)
    {
        $('.simple-infinite-pager').click();
        
        if(numExtraPagesToLoad < 2)
        {
            return;
        }
        
        var numToLoadByScrolling = numExtraPagesToLoad - 1;
        
        for(var i = 0; i < numToLoadByScrolling; i++)
        {
            setTimeout(scrollToBottom, timeToWaitForEachPageLoad*(i+1));
        }
    }

    function removeUnpopularEvents()
    {
        var events = $('.event-listing');
  
        events.each(function(){
          var event = $(this);
          var shouldRemove = isEventUnpopular(event);

          if(shouldRemove == true)
          {
              event.remove();
          }
        });
    }

    function scrollToStartOfResults()
    {
        $(window).scrollTop(0);
        var startOfResultsOffset = $('#C_pageBody').offset().top;
        $(window).scrollTop(startOfResultsOffset);
    }

    function removeUnpopularEventsAndMakeReadable()
    {
        removeUnpopularEvents();
        
        scrollToStartOfResults();
        
        $('.docked-event-date-wrap').remove();
        $('.find-navbar-wrap').remove();
    }

    setTimeout(loadAndRemoveUnpopularEvents, 2000);