alindeman

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.MalformedURLException;
import java.net.URL;

public class Lucky13 {	
	public static double getWinnings(double bet) throws MalformedURLException, IOException {
		return (new BufferedReader(new InputStreamReader(((InputStream)(new URL("http://roulette.engineyard.com/").getContent())))).readLine().indexOf("13") != -1) ? 35 * bet : 0; 	

alindeman

class Array
  def recursive_reverse
    return self if empty?
    [pop, *recursive_reverse]
  end
end

puts [1,2,3,4].recursive_reverse.inspect

alindeman

@posts.try(:each) do |post|
  # something with post
end

alindeman

case "Foo BAR baz"
  when /bar/i
    puts "This will occur"
end

alindeman

def with_scope(*locator)
  locator.compact.empty? ? yield : within(*locator) { yield }
end

alindeman

array = [1, 2, 3, 4, 5]

print_procs = []
array.each do |i|
  print_procs.push lambda { puts i }
end
print_procs.each(&:call)

puts

alindeman

def execute
  x = 3
  yield
end

x = 1
execute { puts x }

alindeman

x = 1
block = lambda { puts x }

block.call
x = 3
block.call

alindeman

actions = []
for i in [1, 2, 3, 4, 5]
  actions.push lambda { puts i }
end

actions.each(&:call)

alindeman

actions = []
[1, 2, 3, 4, 5].each do |i|
  actions.push lambda { puts i }
end

actions.each(&:call)