投稿時間:2021-05-20 12:35:07 RSSフィード2021-05-20 12:00 分まとめ(36件)

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IT	ITmedia 総合記事一覧	[ITmedia ビジネスオンライン] 三菱鉛筆、ウイスキーの樽材をペン軸に再利用した「ピュアモルト」　今回は「オークの森」をイメージ	https://www.itmedia.co.jp/business/articles/2105/20/news068.html	itmedia	2021-05-20 11:38:00
IT	ITmedia 総合記事一覧	[ITmedia ビジネスオンライン] 動画配信ランキング、「東京リベンジャーズ」が3位に躍進　「名探偵コナン」は2位に	https://www.itmedia.co.jp/business/articles/2105/20/news069.html	gempartners	2021-05-20 11:30:00
IT	ITmedia 総合記事一覧	[ITmedia ビジネスオンライン] GMOコイン、ポルカドット新規上場　時価総額8位の仮想通貨	https://www.itmedia.co.jp/business/articles/2105/20/news067.html	itmedia	2021-05-20 11:19:00
IT	SNSマーケティングの情報ならソーシャルメディアラボ【Gaiax】	今こそ始めよう！ LinkedIn広告のメリットや費用の設定、出稿方法を解説	https://gaiax-socialmedialab.jp/post-106319/	facebook	2021-05-20 02:50:38
TECH	Techable（テッカブル）	電動マイクロモビリティシェアリング「LUUP」、エリア拡大と機体開発を加速	https://techable.jp/archives/154873	株式会社	2021-05-20 02:00:13
python	Pythonタグが付けられた新着投稿 - Qiita	組合せ最適化への挑戦録（勤務スケジューリング）4.大改造の第一歩	https://qiita.com/wellwell3176/items/365c79b5939729d4688f	考察と今後の課題必要となる追加仕様・日目の夜勤が不要であること→これは、daの組み合わせをset関数で個別に取り出しているから起きることなので、daを接続した状態で取り出し、そこに存在する組み合わせをdaとして使うようにすれば実現できる気がする・変数から勤務表を再生成する機能割と切実に必要である。	2021-05-20 11:14:36
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	なんらかのエラーが出ている。	https://teratail.com/questions/339330?rss=all	なんらかのエラーが出ている。	2021-05-20 11:43:36
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	データを一行づつDaraFrameに格納、そしてEXCELに書き込む、もしくは一行ずつEXCELに書き込む	https://teratail.com/questions/339329?rss=all	データを一行づつDaraFrameに格納、そしてEXCELに書き込む、もしくは一行ずつEXCELに書き込む以下のようなデータをEXCELに出力したいのですが、最後の行だけしか書き込めません。	2021-05-20 11:28:52
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	VBでテキストボックスのスクロールバーを同期させたいです。	https://teratail.com/questions/339328?rss=all	教授	2021-05-20 11:17:58
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	php sql 翌月に変わったときに1回だけsqlを実行する方法	https://teratail.com/questions/339327?rss=all	phpsql翌月に変わったときに回だけsqlを実行する方法前提・実現したいことお世話になります。	2021-05-20 11:17:37
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	npm installをしたら発生するエラー	https://teratail.com/questions/339326?rss=all	npminstallをしたら発生するエラー前提・実現したいことpackagejsonのあるカレントディレクトリでnpmnbspinstallをしたところエラーが出てしまい、ログを見るとこのようなエラーが出ていました。	2021-05-20 11:11:27
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	font-sizeを可変にできない	https://teratail.com/questions/339325?rss=all	fontsizeを可変にできない前提・実現したいことfontsizeを可変にしたい。	2021-05-20 11:08:58
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	初学者　構造体の配列を関数の引数に渡す方法が知りたい	https://teratail.com/questions/339324?rss=all		2021-05-20 11:06:31
GCP	gcpタグが付けられた新着投稿 - Qiita	firebase functionsのemulatorにstorageが追加されたので試してみた。	https://qiita.com/Camity/items/b3c7f0289c5f3bb319cb	因みにJavaが無いと一部動かないので、FirestoreEmulatorhasexitedbecausejavaisnotinstalledと出る場合は、から「Windowsオンライン」をクリック。	2021-05-20 11:42:46
海外TECH	DEV Community	Implementing Redux pattern	https://dev.to/jucian0/implementing-redux-pattern-1oj0	Implementing Redux patternIf you are a software developer and aren t in another world you have probably read or heard something about Redux Today Redux is very popular but not as much as some years ago The first time that I heard about React the second word was always Redux How to init with react and redux Todo app with react redux and another hundred names Even though Redux is not as popular today as in the past I think it s very helpful that you know how Redux works and how you can create a simple version of this famous pattern Redux is a pattern that provides a way to manage your application state Redux pattern increased in popularity when front end applications became more complex and when we started to develop applications with many components sharing the same state You can find a lot of libraries that implement this we have Redux for React and RXJS for Angular Since Redux is very popular I assume that you know how it works and how to use it but I will provide some basic information about it If you want to know more however I recommend that you read the documentation about the patterns and how some libraries do this Redux explanationsActions basically actions are like instructions that drive your intentions you need a type that describes what you want to do and if you need some data to perform your intentions it s necessary to provide a payload const action type ADD TODO payload label Push up complete false Reducers reducers are pure functions that perform your intentions in the application state that function receives the current state and the action that is running For every action you should provide a reaction in your reducer function reducer state action switch action type case ADD TODO do something case DELETE TODO do another thing Store I like to think about Store as a place where you have the real state and it provides the resources to get the state store getState and register listeners Our Redux APIThis is how we will initiate our Store const store new Store reducers initialState Our redux implementation has some public methods and private method dispatch This method will receive the instruction that will drive how the state will be changed subscriber With this method we can subscribe listeners to know when the application state is changed These listeners will be simple functions that can receive the new state changed by argument value These methods will return the current state of the application class Store constructor dispatch subscriber We need another method to perform the state changes reducer is the last method that we need in our implementation class Store private reduce Okay we need more than methods in our redux implementation we need a property to hold the state application state and another to hold the reducers application and one more to hold the subscribers class Store private state key string any private reducers key string Function private subscribers Array lt Function gt Implementation ConstructorLet s go ahead You may notice that I m using typescript but feel free to use javascript Our first step is to write the constructor method  constructor needs to receive the reducers and the initialState so let s do that class Store constructor reducers initialState this reducers reducers this state initialState Here we assign reducers and initialState to state and reducers properties Using it const reducers todoReducer state action gt const initialState todoReducer todos const store new Store reducers initialState ReduceAs I mentioned earlier reduce will perform and return the state changed class Store private reduce state action const newState for const prop in this reducers newState prop this reducers prop state prop action return newState Here we iterate reducers registered in Store and invoke every reducer passing by argument the current state and the current action After that we save the result returned by every reducer in the correct state property Finally we return to the new state Since the reduce method is a private method it will not be available to use out of class SubscribeSubscribe will allow us to have many state change listeners so let s implement it class Store subscribe fn Function this subscribers this subscribers fn return gt thi subscribers this subscribers filter subscriber gt subscriber fn Here we received a function that will be invoked when some changes happen in the state subscriber will add the fn argument into subscribers property The last part of this method will return another function that when invoked will remove the fn function passed by argument The function that will be returned knows the subscriber method context for this reason we can compare fn argument with every subscriber registered in our Store and decide who needs to be removed Using it const store new Store reducers initialState function callback state do something const unsubscribe store subscribe callback unsubscribe wii remove callback function DispatchLet s implement this method and learn how it works class Store dispatch action this state this reduce this state action this subscribers forEach fn gt fn this state When reduce method is invoked it returns a new state and assigns it to state property of the store After that we iterate subscribers property and invoke every subscribed function passing the new state by argument this way every listener will be notified with the new application state Using it const store new Store reducers initialState const action type ADD TODO payload label Push up complete false store dispatch action ValueOur last method implementation will be a get method that will return us the current state let s implement it class Store get value return this state Final codeclass Store private subscribers Function private reducers key string Function private state key string any constructor reducers initialState this subscribers this reducers reducers this state this reduce initialState get value return this state subscribe fn this subscribers this subscribers fn fn this value return gt this subscribers this subscribers filter sub gt sub fn dispatch action this state this reduce this state action this subscribers forEach fn gt fn this value private reduce state action const newState for const prop in this reducers newState prop this reducers prop state prop action return newState Finally we have a simple implementation of redux this implementation does not reflect any redux library implementation it s just a possible implementation of redux The principal goal of this post is to show you a simple way of how redux works If you are more interested in a functional approach let me know and we can address it in the next post I hope that you enjoyed this post Stay Safe	2021-05-20 02:03:36
金融	日本銀行：RSS	決済システム分野における企画・調査担当者の募集について	http://www.boj.or.jp/announcements/release_2021/rel210520b.htm	調査	2021-05-20 12:00:00
金融	ニュース - 保険市場TIMES	損保ジャパン、シリーズ第4弾となる新CMオンエア開始	https://www.hokende.com/news/blog/entry/2021/05/20/120000		2021-05-20 12:00:00
ニュース	ジェトロ ビジネスニュース（通商弘報）	インドなどからの入国禁止を5月31日まで延長、日本からの入国は条件付きで可能	https://www.jetro.go.jp/biznews/2021/05/57ade0efc1254a14.html	入国禁止	2021-05-20 02:15:00
海外ニュース	Japan Times latest articles	Japan’s 2025 budget goal is near impossible, debt panel member says	https://www.japantimes.co.jp/news/2021/05/20/business/economy-business/japan-budget-goal/	Japan s budget goal is near impossible debt panel member saysMeasures such as spending cuts or tax increases to meet the goal would shave off the economy each year and are therefore unlikely says	2021-05-20 11:35:21
海外ニュース	Japan Times latest articles	Ford’s electric F-150 pickup aims to be the Model T of EVs	https://www.japantimes.co.jp/news/2021/05/20/business/ford-electric-truck/	vehicles	2021-05-20 11:29:12
海外ニュース	Japan Times latest articles	‘We are waiting to die’: Hope fades after India halts vaccine exports	https://www.japantimes.co.jp/news/2021/05/20/world/developing-nations-vaccine/	people	2021-05-20 11:18:05
ニュース	BBC News - Home	Nord Stream 2: Biden waives US sanctions on Russian pipeline	https://www.bbc.co.uk/news/world-us-canada-57180674	stream	2021-05-20 02:36:35
ビジネス	ダイヤモンド・オンライン - 新着記事	動画サイトのランブル、ティール氏ら保守系が出資 - WSJ発	https://diamond.jp/articles/-/271818	動画サイト	2021-05-20 11:09:00
LifeHuck	ライフハッカー［日本版］	Apple Watchのバッテリー寿命を延ばすコツ	https://www.lifehacker.jp/2021/05/234515improve-apple-watch-battery-life.html	applewatch	2021-05-20 12:00:00
北海道	北海道新聞	柴崎は後半５分までプレー　サッカー、スペイン２部	https://www.hokkaido-np.co.jp/article/545885/	柴崎岳	2021-05-20 11:02:53
北海道	北海道新聞	中国、政策金利据え置き　１３カ月連続、経済好調で	https://www.hokkaido-np.co.jp/article/545924/	中国人民銀行	2021-05-20 11:16:00
北海道	北海道新聞	ＨＡＣ丘珠―函館１往復欠航　機材不具合	https://www.hokkaido-np.co.jp/article/545920/	北海道エアシステム	2021-05-20 11:13:00
北海道	北海道新聞	札幌の感染３９０人台、過去２番目の多さに　新型コロナ	https://www.hokkaido-np.co.jp/article/545919/	新型コロナウイルス	2021-05-20 11:07:00
北海道	北海道新聞	松山、メジャー連勝狙う　全米プロゴルフ、２０日夜開幕	https://www.hokkaido-np.co.jp/article/545917/	男子ゴルフ	2021-05-20 11:12:05
北海道	北海道新聞	４月の輸出３８％増　自動車や半導体装置に伸び	https://www.hokkaido-np.co.jp/article/545884/	貿易統計	2021-05-20 11:11:18
北海道	北海道新聞	渋野「納得できるように」　２０日開幕の米女子ゴルフへ抱負	https://www.hokkaido-np.co.jp/article/545890/	女子ゴルフ	2021-05-20 11:09:38
北海道	北海道新聞	署名簿からアルバイトの掌紋　事務局長「廃棄」、説明に矛盾	https://www.hokkaido-np.co.jp/article/545899/	事務局長	2021-05-20 11:10:10
北海道	北海道新聞	厚労省、新たに２社のワクチン承認へ　モデルナとアストラゼネカ製	https://www.hokkaido-np.co.jp/article/545916/	厚生労働省	2021-05-20 11:06:04
北海道	北海道新聞	ロシア産天然ガスパイプライン計画で独に制裁科さず　米、独との関係再建を重視	https://www.hokkaido-np.co.jp/article/545914/	国務長官	2021-05-20 11:05:21
北海道	北海道新聞	国内最小トンボが羽化　和歌山・古座川の湿田	https://www.hokkaido-np.co.jp/article/545841/	和歌山県古座川町	2021-05-20 11:06:06
北海道	北海道新聞	栄のキャバクラを立ち入り調査　愛知県警、時間外営業で	https://www.hokkaido-np.co.jp/article/545918/	名古屋市	2021-05-20 11:03:00