murajun1978

const fetch = require("node-fetch");

export const fetchClient = baseUrl => endpoint => (success, failure) => {
  fetch(baseUrl + endpoint)
    .then(res => res.json())
    .then(success)
    .catch(failure);
};

murajun1978

require 'benchmark/ips'

hash_array = (1..10000).map{|n| {name: "foo#{n}"}}

Benchmark.ips do |x|
  x.time = 100

  x.report("reverse") do
    hash_array.sort_by!{|v| v[:name]}
    hash_array.reverse!

murajun1978

DIR="$HOME/dev"
tmux new-session -d -s project_name -n processes
tmux send-keys 'top' 'C-m'
tmux split-window -v
tmux send-keys 'top' 'C-m'
tmux split-window -h
tmux send-keys 'top' 'C-m'
tmux new-window -n vim -c "$DIR"
tmux send-keys 'vim' 'C-m'
tmux attach -t project_name

murajun1978

require_relative 'require_file'
include RequireFile

$0                             # => "current_file.rb"
__FILE__                     # => "current_file.rb"
__LINE__                     # => 6
File.expand_path(__FILE__)  # => "path/to/current_file.rb"

stdout_method
  # $0                         # => "current_file.rb"

murajun1978

あいて = %w(ぐー ちょき ぱー)

じゃんけん = { :"ぐー" => 0,
               :"ちょき" => 1,
               :"ぱー" => 2}

loop do
  print 'じゃんけん...   :'

  ぷれいやーの手 = gets.chomp

murajun1978

posts = Post.all

Benchmark.bm do |x|
  x.report(:exists) {posts.exists?}
  x.report(:present) {posts.present?}
end

        user     system      total        real
Post Exists (0.3ms)  SELECT  1 AS one FROM "posts"  LIMIT 1
exists  0.020000   0.000000   0.020000 (  0.028894)

murajun1978

require 'benchmark'
require 'set'

array = Array.new(1_000_000){[1, 2, 3]}
set = array.to_set

Benchmark.bm(15) do |x|
  x.report('array:') { array.each do |n| n.include?(3) end }
  x.report('set:')   { set.each do |n| n.include?(3) end }
end

murajun1978

def create
  # リファクタリング後
  @staff = Staff.new(params[:staff])
  
  if staff = Staff.find_by(email: @staff.email)
    session[:staff_id] = staff.id
    redirect :root
  else
    render :new
  end

murajun1978

box: inwy/[email protected]
services:
  - wercker/postgresql
build:
  steps:
    - bundle-install
    - rails-database-yml:
        service: postgresql
    - script:
        name: echo ruby information

murajun1978

class Murajun
  def initialize(name)
    @name = name
  end
  
  def murajun?
    @name == "murajun"
  end
end