makaroni4

require "ostruct"

class User
  def initialize(basic_params)
    @json_params = OpenStruct.new(basic_params)
  end

  def full_name
    [
      @json_params.first_name,

makaroni4

{
  "rules": {    
    ".read": false,
    ".write": false,
    "incremental_counter": {
      ".validate": "newData.isNumber() && newData.val() === data.val() + 1",
      ".read": true,           
      ".write": true
    } 
  }

makaroni4

require 'benchmark'
require 'benchmark/ips'

Benchmark.ips do |r|
  r.report("+ ") do
    42 + 42
  end

  r.report("* ") do
    42 * 42

makaroni4

#include <stdio.h>

long long int myfunc (long long int i, long long int cache[])
{
  if(cache[i]) {
    return cache[i];
  }

  if (i <= 2) {
    return i;

makaroni4

ALTER TABLE mc_subscribers ADD COLUMN id BIGSERIAL;
UPDATE mc_subscribers SET id = nextval(pg_get_serial_sequence('mc_subscribers', 'id'));
ALTER TABLE mc_subscribers ADD PRIMARY KEY (id);

makaroni4

SELECT 
  age(now(), query_start) AS duration, 
  state, 
  pid, 
  query, 
  datname, 
  application_name, 
  waiting 
FROM pg_stat_activity
ORDER BY duration DESC NULLS LAST;

makaroni4

input = ["red", "green", "blue", "red", "blue"]

output = input.each_with_object(Hash.new(0)) do |word, o|
  o[word] += 1
end

p output

#  {"red"=>2, "green"=>1, "blue"=>2} 

makaroni4

update fb_audiences
  set facebook_id = replace(facebook_id, '[^0-9]+$', '');

SELECT id, facebook_id
FROM fb_audiences
WHERE facebook_id ~ '[^0-9]+$'

makaroni4

(function() {
  function hideBoringArticles(nodes) {
    nodes.filter("article.badge-entry-container.badge-entry-entity").each(function(i, el) {
      if($(el).data("entryVotes") < 20000) {
        $(el).hide();
      }
    })
  }

  var MutationObserver = window.MutationObserver;

makaroni4

def toss
  (rand * 100) > 60 ? 1 : 2
end

# Both players bet on 1
def game
  toss_1 = toss()
  toss_2 = toss()

  if toss_1 == 1 && toss_2 != 1