cawel

my_proc = Proc.new do |e|
  puts "this is #{e}"
end

my_proc.call(2)
my_proc.(2)
my_proc[2]
my_proc === 2

cawel

def run_proc(p)
  p.call
end

name = "Fred"
my_proc = proc { puts name }
name = "Marc"
run_proc my_proc

cawel

var http = require('http');

http.createServer(function (req, res) {
  res.writeHead(200, {'Content-Type': 'text/plain'});
  res.end('Hello World\n');
}).listen(1337, "127.0.0.1");

console.log('Server running at http://127.0.0.1:1337/');

cawel

class Robot
  def move(&block)
    instance_eval( &block )
  end

  def up;
    puts “u“;
  end

  def down; 

cawel

class A
  attr_accessor :var
  def method
    var = 45
  end
end

a = A.new
a.method
puts a.var

cawel

value = compute_value
value = (value > CONSTANT) ? value : CONSTANT

cawel

require 'rubygems'
require 'fileutils'

puts File.expand_path(File.dirname(__FILE__))

FileUtils.mkdir 'test'

FileUtils.chdir 'test'

puts File.expand_path(File.dirname(__FILE__))

cawel

hash = {:language => 'ruby', :author => 'martin'}
puts hash['language']

cawel

require 'rubygems'
require 'active_support'

hash = HashWithIndifferentAccess.new({:language => 'ruby', :author => 'martin'})

p hash['language']

cawel

ary = [1,2,3]
ary.each do |element|
  element += 1
end

puts ary