vrinek

class MyTimerClass
  attr_reader :timers

  def initialize
    @timers = {}
    @parent_timer = nil
  end

  def clock!(name, &block)
    @timers[name] ||= 0

vrinek

require 'active_support/hash_with_indifferent_access'
require 'minitest/autorun'

def sum(a: 0, b: 0)
  a + b
end

class BugTest < MiniTest::Unit::TestCase
  def setup
    @normal_hash = {a: 18, b: 24} # just a hash

vrinek

Ruby 2.2.0 now warns against a circular argument reference. It is pretty simple to demonstrate and pretty difficult to explain so I'll just present some code snippets.

The first example shadows a function (which I have encountered in one of the open-source projects I'm involved with):

def foo
  42
end

def bar(foo = foo)

vrinek

irb(main):065:0> a = "雷"
"雷"
irb(main):066:0> b = a.unpack("C*").pack("C*")
"\xE9\x9B\xB7"
irb(main):067:0> a == b
false
irb(main):068:0> a.bytes == b.bytes
true
irb(main):069:0> a == b.unpack("U*").pack("U*")
true

vrinek

@import url("../rust.css");

body {
    max-width:none;
}

@media only screen {
    #toc {
        position: absolute;
        left: 0px;

vrinek

class Avatar < ActiveRecord::Base
  has_attachment  :content_type => :image,
                  :storage => :file_system,
                  :max_size => 500.kilobytes,
                  :resize_to => 'c128x128', 
                  :thumbnails => {:tiny => 'c24x24', :small => "c48x48"}
  validates_as_attachment
  
  after_validation :greeklize_attachment_errors
  

vrinek

<tr class="marked">
  <td colspan="5"><pre><a name="line6"></a>6   def toc_for(article)</pre></td>
</tr>
<tr class="uncovered">
  <td colspan="5"><pre><a name="line7"></a>7     '<ul id="toc_links">' + article.toc.collect{ |h5|</pre></td>
</tr>
<tr class="uncovered">
  <td colspan="5"><pre><a name="line8"></a>8       '<li>' + link_to(h5[:title], url_for_article(article) + '?article_page=' + h5[:page].to_s + '#' + h5[:id]) + '</li>'</pre></td>
</tr>
<tr class="uncovered">

vrinek

# used for paginations (Model.paginate :page => page_from_params)
# it just makes the WillPaginate::InvalidPage errors go away
def page_from_params
  (p = params[:page].to_i) > 0 ? p : 1
end

vrinek

    $$('a[data-remote=true]').each(function(a){
        a.onclick = function(){
            href = a.getAttribute('href');
            url = href.split('?')[0];
            params = href.split('?')[1];
            newParam = encodeURI(eval(a.getAttribute('data-with')));

            if(params){
                params = params.split('&');

vrinek

def all_controller_actions(controller)
  (controller.ancestors[1, controller.ancestors.index(ApplicationController)] + [Object]).inject(controller.new.methods) do |methods, ancestor|
    methods -= ancestor.new.methods unless ancestor.class == Module
    methods
  end.reject{|m| m =~ /^_/}.sort.map(&:to_sym)
end