jgagner

Spec::Matchers.define :be_invalid_on do |field|
  match do |model_instance|
    !model_instance.valid? && model_instance.errors.on(field) != nil   
  end
end

jgagner

require 'benchmark'


d1 = [1,1,1,1,0,0,0,0,0]
d2 = [1,0,1,0,1,1,0,0,0]
d3 = [0,0,0,0,1,0,1,1,1]



def calc_sim vector1, vector2

jgagner

use Rack::Logger
app = proc do |env|
  [ 200, {'Content-Type' => 'text/plain'}, "a" ]
end

run app

#This will produce: 
# Rack::Lint::LintError: rack.errors#close must not be called

jgagner

#Output
#Jerome-Gagners-MacBook-Pro:amazon jgagner$ ruby bids.rb
#Current bid: 6, bid total 6, current max 0
#Current bid: 6, bid total 12, current max 6
#Current bid: 6, bid total 18, current max 12
#Current bid: 3, bid total 12, current max 18
#Accepted bids = 666 at 18
#Current bid: 6, bid total 6, current max 0
#Current bid: 5, bid total 10, current max 6
#Current bid: 4, bid total 12, current max 10

jgagner

//Squished a couple files together

package com.jeromegagner.example.trees.binary;

/**
 * Created by IntelliJ IDEA.
 * User: jgagner
 * Date: Apr 18, 2010
 * Time: 1:30:24 PM
 * To change this template use File | Settings | File Templates.

jgagner

There are four ways to do something
<ul>
<% (1..4).zip([:a,:b,:c,:d]).zip(["face1","face2","face3","face4"]).transpose[0].transpose[0].each do |x| %>
<li><%= x %> </li>
<% end %>
</ul>

jgagner

def do_something &block
(1..4).zip([:a,:b,:c,:d]).zip((["face"] * 4).map {|x| x.to_sym}).transpose[0].transpose[0].each(&block)
end

do_something { puts "face!"}

jgagner

#doesn't accept args for the methods... probably next on that
class Object
  def try_chain(*args)
    method = args.shift
    if respond_to?(method)
      args.empty? ? self.send(method) : self.send(method).try_chain(*args)
    else
      nil
    end
  end

jgagner

#mostly pseudo-code
#LOLOLOL

class Module 
  alias_method :old_method_missing, :method_missing
  def method_missing(methId)
         methods = methId.split("_")
         tmp = self
         while methods.size > 0 
            my_meth = methods.pop

jgagner

du -k * | sort -nr | cut -f2 | xargs -d '\n' du -sh | less