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class TablePrinter
  # Initialize data
  # @param data [Array] printing data as array of hash.
  # @param labels [Hash] column labels hash.
  # @example
  #   data = [
  #     { name: "foo", installed_versions: ["5.15.5_3"], current_version: "5.15.7" },
  #     { name: "bar", installed_versions: ["7.0.4"], current_version: "7.0.5" },
  #     { name: "baz", installed_versions: ["3.2.5"], current_version: "3.2.7" },
  #   ]

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#!/usr/bin/env ruby

APP_ROOT = File.expand_path "#{File.dirname(__FILE__)}/.."
pid_file = "#{APP_ROOT}/tmp/pids/app.pid"

if File.exist?(pid_file)
  puts 'Found puma pid file!'
  puts 'Puma may have been already started!'
  exit
end

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// 並列実行
;(async () => {
  const sleepTimes = [1000, 2000, 3000]

  // この時点で実行開始される
  const promises = sleepTimes.map((num) => new Promise((resolve, _reject) => {
    setTimeout(() => {
      const now = new Date()
      console.log(`${num} msec later. ${now}`)
      resolve(now)

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# ref. https://railsguides.jp/caching_with_rails.html
# ref. https://api.rubyonrails.org/classes/ActiveSupport/Cache/Store.html
 
# write/read/fetch
Rails.cache.write('test_cache_key', Time.zone.now, expires_in: 10.seconds)
Rails.cache.read('test_cache_key', expires_in: 10.seconds)
Rails.cache.fetch('test_cache_key', expires_in: 10.seconds) { Time.zone.now }
 
class Model
  def self.hoge

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require 'uri'
require 'net/http'

module TestSlackNotifier
  extend self

  def send
    uri = URI.parse('https://slack.com/api/chat.postMessage')
    params = {
      channel: '#channel_name',

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# headless chromeでスクリーンショットを撮るやつ
# ref. https://developers.google.com/web/updates/2017/04/headless-chrome?hl=ja

alias chrome='/Applications/Google\ Chrome.app/Contents/MacOS/Google\ Chrome'

# shot!
chrome --headless --disable-gpu --screenshot="./screenshot/hoge.png" --window-size=1280,4000 https://example.com/hoge

# shot!shot!shot!
pages=(hoge fuga piyo)

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#!/usr/bin/env ruby

# Amazon Transcribe で出力されたjsonファイルから話者ごとのセンテンスを抽出してtxtファイルに保存

require 'json'

def convert(input_file, output_file)
  input = JSON.parse(File.read(input_file))

  results = input['results']

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#!/usr/bin/env ruby

puts "__FILE__: #{__FILE__}"
puts "__dir__: #{__dir__}"
puts "File.dirname(__FILE__): #{File.dirname(__FILE__)}"
puts "File.expand_path('.', __FILE__): #{File.expand_path('.', __FILE__)}"
puts "File.expand_path('.', __dir__): #{File.expand_path('.', __dir__)}"

# スクリプトが1階層下にある場合
APP_ROOT = File.expand_path('..', __dir__)

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100.times do |i|
  str = ''
  str += 'Fizz' if i % 3 == 0
  str += 'Buzz' if i % 5 == 0
  str += i.to_s if str == ''
  puts str
end

100.times do |i|
  print 'Fizz' if i % 3 == 0

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# usage:
#   1. Install aws-sdk
#     $ echo "source 'https://rubygems.org'\ngem 'aws-sdk'" > Gemfile
#     $ bundle install --path vendor/bundle
#     # or
#     $ gem install aws-sdk
#   2. Setup AWS credentials
#     $ eval $(assume-role hoge)
#     # or
#     $ export AWS_PROFILE=hoge