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Masayuki Izumi izumin5210

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@izumin5210
izumin5210 / active_record-relation.rb
Last active May 12, 2018 03:16
Splitting DB on "Rails" - https://speakerdeck.com/izumin5210/splitting-db-on-rails
require "join_detector_ext"
ActiveRecord::Relation.prepend JoinDetectorExt
@izumin5210
izumin5210 / bufferred-worker.go
Last active March 15, 2018 11:00
package main
import (
"context"
"fmt"
"reflect"
"sort"
"sync"
"time"
)
@izumin5210
izumin5210 / file0.txt
Last active December 31, 2016 14:59
趣味Electronアプリの(?:dev)?Dependenciesを晒してみる ref: http://qiita.com/izumin5210/items/e8fd447682c93b629f2b
{
"dependencies": {
"axios": "^0.15.3",
"babel-polyfill": "^6.16.0",
"dexie": "^1.5.1",
"font-awesome": "^4.7.0",
"fuse.js": "^2.6.1",
"immutable": "^3.8.1",
"menubar": "^5.1.0",
"moment": "^2.16.0",
@izumin5210
izumin5210 / newlines.coffee
Created April 20, 2014 03:45
【AngularJS】改行を有効にするためのフィルタ
app = angular.module 'MyApplication'
app.filter 'noHTML', ->
(text) -> text.replace(/</g, '&lt;').replace(/>/g, '&gt;').replace(/&/, '&amp;') if text?
app.filter 'newlines', ($sce) ->
(text) -> $sce.trustAsHtml(if text? then text.replace(/\n/g, '<br />') else '')
app.controller 'testCtrl', ($scope) ->
$scope.iroha = 'いろはにほへと　ちりぬるを\nわかよたれそ　　つねならむ\nうゐのおくやま　けふこえて\nあさきゆめみし　ゑひもせす'
@izumin5210
izumin5210 / atoi_sample.cpp
Created October 26, 2016 04:05
https://github.com/PointCloudLibrary/pcl/blob/pcl-1.8.0/io/src/openni2_grabber.cpp#L329-L330
#include <iostream>
#include <string>
int main()
{
const std::string id = "#3";
std::cout << "id // => " << id << std::endl;
std::cout << "id[0] // => " << id[0] << std::endl;
std::cout << "id.c_str() // => " << id.c_str() << std::endl;
std::cout << "(id.c_str() + 1) // => " << (id.c_str() + 1) << std::endl;
@izumin5210
izumin5210 / zundoko.rb
Last active April 23, 2016 08:21
ズンドコペアプロのライブコーディングで書いたやつ
# 詰めると1行（68文字）
# s="";(print c=%w(ズン ドコ).sample;s+=c)until s[/(ズン){4}ド/];puts"キ・ヨ・シ！”
# きれいに書くとこんなかんじ
dic = %w(ズン ドコ)
msg = ""
# 「ズンドコが完成していない」間はループが回る
@izumin5210
izumin5210 / config.json
Last active March 7, 2016 03:17
{
"src": {
"styles": {
"dir": "source/assets/styles",
"entries": [
"style.scss"
],
"include-paths": [
"node_modules/font-awesome/scss",
"node_modules/normalize.css"
@izumin5210
izumin5210 / tab.html
Created April 20, 2014 04:03
【AngularJS】タブでコンテンツ切り替えするやつ
<div class="tab-pane" ng-show="active" ng-transclude>
</div>
@izumin5210
izumin5210 / answer.md
Created December 17, 2015 13:38
mynumber_validator_answer.md

Check Digit of MyNumber

How to calculate the check digit of mynumber

\begin{align*} d &= 11 - \Biggl( \sum^{11}{n=1} P_n \times Q_n \Biggr) \bmod 11 \ & \text{ただし，$\Biggl( \sum^{11}{n=1} P_n \times Q_n \Biggr) \bmod 11 \leq 1$の場合は$d=0$} \ P_n &= \text{ 個人番号を構成する検査用数字以外の十一桁の番号の最下位の桁を1桁目としたときの$n$桁目の数字} \ Q_n &= \begin{cases}

@izumin5210
izumin5210 / mynumber_validator.rb
Last active December 17, 2015 13:37
class MyNumberValidator
def validate(num)
# write your code here...
end
end