pramatias

public class StringUtils { 
  public static boolean isBlank(String str) { 
    int strLen; 
    if (str == null || (strLen = str.length()) == 0) { 
      return true; 
    }  
    for (int i = 0; i < strLen; i++) { 
    if ((Character.isWhitespace(str.charAt(i)) == false)) { 
      return false; 
    } 

pramatias

(defmulti blank? class)
(defmethod blank? String [s] (every? #{\space} s))
(defmethod blank? nil [_] true)

pramatias

#app/models/chatter.rb
class Chatter < ActiveRecord::Base
  has_one :chats
end

#app/models/chat.rb
class Chat < ActiveRecord::Base
  belongs_to :chatter, :foreign_key => 'chatter_id'
end

pramatias

#app/models/chatter.rb
class Chatter < ActiveRecord::Base
  has_one :chats
end

#app/models/chat.rb
class Chat < ActiveRecord::Base
  belongs_to :chatter, :foreign_key => 'chatter_id'
end

pramatias

#config/routes.rb

#**before
#/chatters
#/chatters/1 
#/chats
#/chats/1
ActionController::Routing::Routes.draw do |map|
  map.resources :chatters
  map.resources :chats

pramatias

#config/routes.rb 
ActionController::Routing::Routes.draw do |map|
  map.resources :chatters do |chatter|
    chatter.resources :chats
  end


#app/controllers/chats_controller.rb 
#Parameters: {"chat"=>{"id"=>"1", "message"=>"cool"}}
class ChatsController < ApplicationController

pramatias

hjgkhjgjjjk
jkhkhjklj
hghjjhhj

pramatias

a = ""

func1 = Proc.new do
  i = 0
  while i <= 100
    puts "func1 "
    sleep(0.001)
    a.concat "aaaa"
    i = i + 1
  end

pramatias

a = ""

func1 = Proc.new do
  i = 0
  while i <= 100
    puts "func1 "
    sleep(0.001)
    a.concat "aaaa"
    i = i + 1
  end

pramatias

(def πρόσθεσε     +) 
(def αφαίρεσε     -) 
(def σύμβολο      symbol) 
(def σύμβολο?     symbol?) 
(def διάλεξε      take) 
(def διάλεξε-τελευταίο take-last) 
(def διάλεξε-ν    take-nth) 
(def διάλεξε-μέχρι take-while) 
;(def μακροεντολή defmacro)
(def τέσταρε       test)