yuroyoro

object GeoHash{
  val base32 = "0123456789bcdefghjkmnpqrstuvwxyz"
  
  def encode( longtitude:Double, latitude:Double, range:Double) = {
    def asBit( d:Double,max:Double,min:Double ) : List[Boolean] = {
      val mid = ( max + min ) / 2
      var res = ( d >= mid )
      val (m,n) = if( res ) (max,mid) else (mid,min)
      if( Math.abs( m - n ) <= range ) 
        res :: Nil

yuroyoro

2 ：水先案名無い人：2011/12/03(土) 11:12:19.45 ID:bTIMyqpW0

　　　　　　 　 ,;' '" '' ゛''" ゛' ';;,,
　　　　　　（rヽ,;''"""''゛゛゛'';, ﾉｒ）
　　　　　　,;'゛ i ＿　　、＿ iヽ゛';,　　　　お前それ関数型言語でも同じ事言えんの？
　　　　　 ,;'" ''| ヽ・〉　〈・ノ |ﾞ゛ `';,
　　　　　 ,;''　"|　　 ▼　　 |ﾞ゛　`';,
　　　　　 ,;''　　ヽ＿人＿ /　　,;'_
　　　　 ／ｼ、　 ヽ⌒⌒ /　　 ﾘ　＼
　　　　|　　　"ｒ,,　｀"'''ﾞ´　　,,ﾐ゛　　 |

yuroyoro

1. docker run --rm sentry config generate-secret-key でSECRET_KEYを生成する
2. SECRET_KEYを環境変数にいれる export SENTRY_SECRET_KEY="your generated secret key"
3. docker-compose up -d でサービスあげる。
4. docker-compose run -rm sentry sentry upgrade で初期設定する
5. docker-compmse restart で再起動
6. Go http://localhost:9000 and get sentry!

yuroyoro

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       spf=none (google.com: yasuhiro@wahlandcase.com does not designate permitted sender hosts) smtp.mail=yasuhiro@wahlandcase.com;
       dkim=pass header.i=@wahlandcase.com
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yuroyoro

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Authentication-Results: mx.google.com;
       spf=neutral (google.com: 133.242.250.102 is neither permitted nor denied by best guess record for domain of khorie@wanderlust.co.jp) smtp.mailfrom=khorie@wanderlust.co.jp;
       dkim=pass header.i=@wanderlust-co-jp.20150623.gappssmtp.com
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yuroyoro

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yuroyoro

Why Uber Engineering Switched from Postgres to MySQL - Uber Engineering Blog のまとめ

Posgresqlだと

• pgは追記型なので少しの更新でも多くのdiskへのwriteがおきる
• カラムを一つ更新しただけで多くのindexの書き換えが起こる
• よって、replicationはWALを送るので更新が多いとWALが大量に送られる
• repcliationでは物理的なdiskの変更を送る
• DC間でレプリするときつい
• bugがあってreplica間でMVCCの不整合が起きる

yuroyoro

# AttrInquirable
#  wraps value of attribute in ActiveSupport::StringInquirer.
#
# Usage:
#
#   class Person < ActiveRecord::Base
#     attr_inquireable :status
#   end
#
#   person = Person.new(:status => :pending)

yuroyoro

import java.util.*;
import java.util.function.*;

public class Fold {

    // 自作fold関数
    // 引数に List<T> と、2引数の演算を行うBiFunction<T, T, T>をとって、
    // listを順番にfで畳み込む
    public static <T> T fold(List<T> list, BiFunction<T, T, T> f) {
        T res = list.get(0);

yuroyoro

var path = require('path')
var glob = require('glob')
var extname = require('path-complete-extname')

module.exports = {
  entry: glob.sync(path.join('..', 'app', 'javascript', 'packs', '**', '*.js*')).reduce(
    function(map, entry) {
      var relpath = path.relative(path.join('..', 'app', 'javascript', 'packs'), entry);

      var basename = path.basename(relpath, extname(relpath));