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Understanding Ruby Blocks, Procs and Lambdas

Blocks, Procs and lambdas (referred to as closures in Computer Science) are one of the most powerful aspects of Ruby, and also one of the most misunderstood. This is probably because Ruby handles closures in a rather unique way. Making things more complicated is that Ruby has four different ways of using closures, each of which is a tad bit different, and sometimes nonsensical. There are quite a few sites with some very good

@rickarubio
rickarubio / dbc_logo.png
Last active January 1, 2016 12:19 — forked from dbc-challenges/jquery_example.html
Intro to jQuery for Phase 0
dbc_logo.png
everything i write on medium is a lie
xoxo j$
@ka8725
ka8725 / states_matcher.rb
Created December 13, 2013 12:23
Custom matcher for Rspec to test state_machine status flow
# This custom matcher can be used to test state machine
#
# Examples
#
# it { should have_event(:status, :event_name, [:state1, :state2] => [:state3, :state4]) }
# it { should have_event(:status, :event_name, {
# :state1 => :state3,
# :state1 => :state4,
# :state3 => :state3,
# :state2 => :state4
@pdarden
pdarden / SeeingIsBelievingInstruction.md
Last active March 21, 2016 02:23
How to setup SeeingIsBelieving Plugin for Sublime Text/RVM/OS X

Integration of seeing_is_believing to sublime text 2/3 as a plugin with RVM on OS X.

In Terminal

  1. $ rvm 2.0.0@sublime-text-2 --create or for ST-3 $ rvm 2.0.0@sublime-text-3 --create
  2. $ gem install seeing_is_believing
  3. $ cd ~/Library/Application\ Support/Sublime\ Text\ 2/Packages or for ST-3 $ cd ~/Library/Application\ Support/Sublime\ Text\ 3/Packages
  4. git clone git://github.com/JoshCheek/sublime-text-2-seeing-is-believing.git SeeingIsBelieving
  5. $ rvm wrapper 2.0.0@sublime-text-2 sublime or for ST-3 $ rvm wrapper 2.0.0@sublime-text-3 sublime
@patbenatar
patbenatar / cookie_helper.rb
Created October 16, 2013 17:33
Helper for setting cookies with Capybara for both Selenium and Webkit
## https://github.com/jnicklas/capybara
#=Navigating=
visit('/projects')
visit(post_comments_path(post))
#=Clicking links and buttons=
click_link('id-of-link')
click_link('Link Text')
click_button('Save')