acrosa

_.map([1, 2, 3], function(num){ return num * 3; });
=> [3, 6, 9]

acrosa

var odds = _.reject([1, 2, 3, 4, 5, 6], function(num){ return num % 2 == 0; });
=> [1, 3, 5]

acrosa

// Procedural style
var selected = _.select([1, 2, 3, 4, 5, 6], function(num){ return num % 2 == 0; });
var max = _.max(selected);
=> 6

// Chain methods together
_([1, 2, 3, 4, 5, 6]).chain().select(function(num) { return num % 2 == 0 }).max().value()
=> 6

acrosa

// Given an Object and a function
var obj = { name: "Alejandro" };
var func = function(message) { return message +" "+ this.name; };

var f = _.bind(func, obj); // Bind it!

f("Hello there")
=> "Hello there Alejandro"

// If you pass a third argument you can pre fill the arguments of the function

acrosa

var capitalize = function(text){
  return text[0].toUpperCase() + text.substring(1, text.length);
}
var buildHtml = function(phrase){
  return "<h1>"+ phrase +"</h1>";
}

// We compose the preceding functions into a new one
var buildTitle = _.compose(capitalize, buildHtml);

acrosa

var obj1 = { name: "Alejandro" }
var obj2 = { last: "Crosa", sayName: function (){ return this.name +" "+ this.last; } }

_.extend(obj1, obj2) // Extend obj1 with obj2's properties and methods

obj1.sayName()
=> "Alejandro Crosa"

acrosa

module OAuth::Signature::HMAC
  class Base < OAuth::Signature::Base
  private
    def digest
      self.class.digest_class Object.module_eval("::Digest::#{self.class.digest_klass}")
     digest  = OpenSSL::Digest::Digest.new('sha1')
     OpenSSL::HMAC.digest(digest, secret, signature_base_string)
    end
  end
end

acrosa

require 'rubygems'
require 'sinatra'
require 'sinatra/reloader'
require 'lib/rack_patch'

# this get's executed for all actions
before do
  content_type :html, 'charset' => 'utf-8'
end

acrosa

class JRuby::Rack::Response
  def write_body(response)
      stream = response.getOutputStream
      begin
        @body.each do |el|
          stream.write(el.to_java_bytes)
          stream.flush
        end
      rescue LocalJumpError => e
        # HACK: deal with objects that don't comply with Rack specification

acrosa

$ curl 'http://localhost:8083/earlyflush/crazy' -i
HTTP/1.1 200 OK
Date: Fri, 28 Jan 2011 21:23:07 GMT
Content-Type: text/html; charset=utf-8
Transfer-Encoding: chunked
Server: Jetty(6.1.22)

Here’s to the crazy ones. The misfits. The rebels. The troublemakers. The round pegs in the square holes.
The ones who see things differently. They’re not fond of rules. And they have no respect for the status quo. You can quote them, disagree with them, glorify or vilify them.
About the only thing you can’t do is ignore them. Because they change things. They invent. They imagine. They heal. They explore. They create. They inspire. They push the human race forward.