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USEFUL TRICKS

Array#reduce

Array.reduce will inject and initial value into a block and pass in each value in turn until all values in the array has been iterated i.e

([1] * 10).reduce(0) { |total, current_value| total + current_value } #= 10
# Inject does the same
([1] * 10).inject(0) { |total, current_value| total + current_value } #= 10

However, if we simply require a sum of all values in the array, we can take advantage of Symbol#to_proc as follows:

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if ( (typeof window.console == 'undefined' || typeof window.console.log != 'function') && !!window.location.href.match(/\?console=true/i) ) {
  var ul = _createTag('ul', false, {
    'line-height': '30px',
    'background-color': '#fff',
    'list-style-type': 'square',
    color: '#000',
    position: 'absolute',
    top: 0,
    right: 0,
    left: 0,

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(function($) {
  'use strict';
    // settings
  $.fn.swipe = function(options) {
    var args = Array.prototype.slice.call(arguments);
    // bind using bind or on?
    var bind = typeof $.fn.on == 'function' ? 'on' : 'bind';
    var unbind = typeof $.fn.off == 'function' ? 'off' : 'unbind';
    // events to bind
    var events = {

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$.truncate = function(text, length) {
  if ( length === undefined ) length = 255;
  if ( text.length <= length ) return text;
  return text.substring(0, length) + '...';
};

$.number_with_delimiter = function(number, delimiter) {
  var part, new_number = [];
  if ( delimiter === undefined ) delimiter = ',';
  number = number.toString().split('').reverse();

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if ( typeof document.createStyleSheet !== 'function' ) {
  document.createStyleSheet = function(url, index) {
    var styleElement;
    if ( typeof url === 'string' ) {
      styleElement = document.createElement('style');
      if ( url.replace('{', '') !== url ) {
        if ( styleElement.styleSheet ) {
          styleElement.styleSheet.cssText = url;
        } else {
          styleElement.appendChild(document.createTextNode(url));

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ActsAsTaggableOn::TagList.delimiter = '|'
# https://github.com/mbleigh/acts-as-taggable-on/blob/v2.1.1/lib/acts_as_taggable_on/utils.rb
# This is a hack to remove case-insensitivity on the acts-as-taggable (v2.1.1)
# RE: Ticket - http://redmine.cirrus-connect.com/issues/249
module ActsAsTaggableOn::Utils::OverallMethods
  private

  def like_operator
    using_postgresql? ? 'LIKE' : 'LIKE BINARY'
  end

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:: This is my windows bashrc.bat file, I only really use it for doskey commands, 
:: To get this to work go to Start > Type "regedit" > "HKEY_LOCAL_MACHINE" > "SOFTWARE" > "Microsoft" > "Command Processor"
:: look for "AutoRun" and change the "Data" field to an absolute path to THIS file. If it doesn't exist right-click and go to 
:: "New" > "String Value" > type "AutoRun" and change the "Data" field to an absolute path to THIS file.

:: This file makes "rake" use "bundle exec rake", "s" starts my rails server, "c" for rails console, "m" for database
:: migrations and "mysql" is changed to "mysql -u root", this allows me to import databases easily with 
:: "mysql dbname < file.sql"

@echo off

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def self.inherited(subclass)
  super(subclass)
  subclass.send(:class_eval, <<-eoruby, __FILE__, __LINE__ + 1)
    def self.base_class
      self
    end
  eoruby
end

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http://urbanautomaton.com/blog/2013/08/27/rails-autoloading-hell/

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(function(window, $, undefined) {
  'use strict';
  $.fn.textWidth = function() {
    var $span = $('<span />', {
      text: $(this).text() || $(this).val()
    }).css({
      margin:     0,
      padding:    0,
      width:      'auto',
      font:        $(this).css('font'),