LolWalid

class EncryptionEngine
  def self.encrypt(string)
    results = ''
    string.each_char do |l|
      results += rot(l)
    end
    results
  end

  def self.decrypt(string)

LolWalid

class BeerSong
  def verse(nb_bottle)
    s = "#{pluralize(nb_bottle, capitalize: true)} of beer on the wall, #{pluralize(nb_bottle)} of beer.\n"
    s + if nb_bottle == 0
          "Go to the store and buy some more, 99 bottles of beer on the wall.\n"
        else
          "Take #{it_or_one(nb_bottle - 1)} down and pass it around, #{pluralize(nb_bottle - 1)} of beer on the wall.\n"
        end
  end

LolWalid

# See link below to know all possible filters
# https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl.html

class UserSearch
  def initialize(user, string_query)
    @user = user
    @string_query = string_query
  end
  
  def search

LolWalid

// https://medium.com/freenet-engineering/memory-leaks-in-android-identify-treat-and-avoid-d0b1233acc8

LolWalid

where (condition1 && condition2) || (condition3 && condition4)

Example: where (place.type = 'Restaurant' and place.kind = 'Chinese') or (place.type = 'Bar' and place.kind in ('beer','wine'))

{
  query: {
    bool: {
      should: [
        {

bool: {

LolWalid

Remove branch that are no longer being referenced

git remote prune origin

Remove merged branch

git branch --merged | egrep -v "(^\*|master|dev)" | xargs git branch -d

LolWalid

# app/controllers/admin

class  Admin::PostController < ActionController::Base
  before_action :authenticate_admin!

  def index
    @posts = Post.all
  end
  
  def switch_user

LolWalid

class MyClass
  def self.public
    "I'm public."
  end

  private # this is useless

  def self.private
    "I'm also public."
  end

LolWalid

require 'sudoku'
require 'sudoku_solver'

data = [
  [9, 3, 4, 1, 7, 2, 6, 8, 5],
  [0, 0, 5, 0, 9, 0, 2, 0, 1],
  [8, 0, 0, 0, 4, 0, 0, 0, 0],
  [0, 0, 0, 0, 8, 0, 0, 0, 0],
  [0, 0, 0, 7, 0, 0, 0, 0, 0],
  [0, 0, 0, 0, 2, 6, 0, 0, 9],

LolWalid

{
  "detect_indentation": false,
  "draw_white_space": "all",
  "ensure_newline_at_eof_on_save": true,
  "folder_exclude_patterns":
  [
    ".svn",
    ".git",
    ".hg",
    "CVS",