投稿時間:2021-09-11 15:20:03 RSSフィード2021-09-11 15:00 分まとめ(29件)

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python	Pythonタグが付けられた新着投稿 - Qiita	【プロ野球】今年の新人王をLightGBMで予測してみた	https://qiita.com/jvsgw/items/cbd9b968b52bdabbb1b5	【プロ野球】今年の新人王をLightGBMで予測してみた概要プロ野球も今シーズンは残り試合ほどとなり、現時点でのデータを用いて新人王が誰になるのかをLightGBMにて予測してみようと思いました。	2021-09-11 14:32:07
python	Pythonタグが付けられた新着投稿 - Qiita	「”すぐ” このデータまとめて欲しい」に ”すぐ”に超簡単に応えられる Python の・・・（その２）	https://qiita.com/hima2b4/items/da29530c1f58c7211d44	データ数項目数のデータセットで、住宅価格を示す「MEDV」という項目と、住宅価格に関連するであろう項目が「CRIM犯罪率」「RM部屋数」「B町の黒人割合」「RAD高速のアクセス性」・・・等、項目で構成されたデータとなっています。	2021-09-11 14:10:30
js	JavaScriptタグが付けられた新着投稿 - Qiita	[Jexcel]Excelで開けるUTF-8ファイルを作る	https://qiita.com/tomoyatakagawa/items/15cb7ec1cc4f640717b2	Excelで直接CSVファイルを開くと、文字コードがSJISでないと日本語が文字化けします。	2021-09-11 14:43:40
js	JavaScriptタグが付けられた新着投稿 - Qiita	Nuxt jsonデータからバインディングした値で画像を表示させる	https://qiita.com/kokogento/items/5467418875e0c6077776	Nuxtjsonデータからバインディングした値で画像を表示させるはじめにタイトルの日本語があってるのかわかりませんが、やりたいのはこういう事です。	2021-09-11 14:42:28
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	FullCalenderでイベント表示のタイトルを改行したい	https://teratail.com/questions/358935?rss=all	FullCalenderでイベント表示のタイトルを改行したいFullCalenderでイベント表示のタイトルを改行したいReactでFullCalenderを用いてアプリを作っているのですが、タイトルと時間が改行して見えるように表示が出来ず困っています。	2021-09-11 14:52:30
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	atコマンドで登録したジョブをVPNで実行することはできますか？	https://teratail.com/questions/358934?rss=all	mainrbatnowrandomminutes	2021-09-11 14:43:04
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	codeの下で出力されたを文字をglobal関数を使い上のclass内で処理したい	https://teratail.com/questions/358933?rss=all		2021-09-11 14:34:52
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	JavaFXをIntelliJ IDEAで使おうとするとクラスがインポート出来ない	https://teratail.com/questions/358932?rss=all		2021-09-11 14:16:55
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	Rstudioがクラッシュする？	https://teratail.com/questions/358931?rss=all	RstudioがクラッシュするRstudio初心者なのですが、表題の通り、特に前触れなくそれほど大きい処理を行ったわけでもなく、・下記画像右のようにRstuioで操作するファイル名が赤くなり、上書き保存ができなくなる・下記画像左のように、プログラムの実行ができなくなるという不具合が生じています。	2021-09-11 14:13:56
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	valgrindをインストールしたら必ず改行が出るようになってしまったので直したい	https://teratail.com/questions/358930?rss=all	valgrindをインストールしたら必ず改行が出るようになってしまったので直したいvalgrindをインストールするために以下のコマンドを実行しました。	2021-09-11 14:09:35
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	Vue.jsでpdfmakeを使ったPDFのヘッダー幅を大きくしたい	https://teratail.com/questions/358929?rss=all	Vuejsでpdfmakeを使ったPDFのヘッダー幅を大きくしたい前提・実現したいことVuejsでpdfmakeを使ってPDFをクライアントサイドで出力しようとしています。	2021-09-11 14:07:45
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	springのエラーメッセージ：org.springframework.beans.factory.UnsatisfiedDependencyExceptionの解決	https://teratail.com/questions/358928?rss=all	springのエラーメッセージorgspringframeworkbeansfactoryUnsatisfiedDependencyExceptionの解決前提・実現したいこと現在、「spring解体新書第版」を参考にspringBootを使用してwebアプリ開発を行なっています。	2021-09-11 14:06:58
Ruby	Rubyタグが付けられた新着投稿 - Qiita	rails s で An error occurred while installing pg (1.2.3), and Bundler cannot continue.が出た	https://qiita.com/keichim/items/5a03fd5652b3563e11a8	railssでAnerroroccurredwhileinstallingpgandBundlercannotcontinueが出た概要macを買い替え、以前のPCで技術書を参考に自作したアプリケーションを立ち上げようとrailssをしたら、表題のエラーが出た。	2021-09-11 14:02:24
Docker	dockerタグが付けられた新着投稿 - Qiita	Rails コンテナの docker build を高速化してみる	https://qiita.com/sasamuku/items/4f6bd369a7155e4926ae	BuildKit有効のとき次は有効にしてビルドしてみます。	2021-09-11 14:59:10
Ruby	Railsタグが付けられた新着投稿 - Qiita	Rails コンテナの docker build を高速化してみる	https://qiita.com/sasamuku/items/4f6bd369a7155e4926ae	BuildKit有効のとき次は有効にしてビルドしてみます。	2021-09-11 14:59:10
Ruby	Railsタグが付けられた新着投稿 - Qiita	rails s で An error occurred while installing pg (1.2.3), and Bundler cannot continue.が出た	https://qiita.com/keichim/items/5a03fd5652b3563e11a8	railssでAnerroroccurredwhileinstallingpgandBundlercannotcontinueが出た概要macを買い替え、以前のPCで技術書を参考に自作したアプリケーションを立ち上げようとrailssをしたら、表題のエラーが出た。	2021-09-11 14:02:24
海外TECH	DEV Community	Create a Netflix clone from Scratch: JavaScript PHP + MySQL Day 47	https://dev.to/cglikpo/create-a-netflix-clone-from-scratch-javascript-php-mysql-day-47-37b0	Create a Netflix clone from Scratch JavaScript PHP MySQL Day Netflix provides streaming movies and TV shows to over million subscribers acrossthe globe Customers can watch as many shows movies as they want as long as they areconnected to the internet for a monthly subscription fee of about ten dollars Netflix producesoriginal content and also pays for the rights to stream feature films and shows In this video we will be Creating mute and unmute functionalitiesIf you like my work please considerso that I can bring more projects more articles for youIf you want to learn more about Web Development feel free to follow me on Youtube	2021-09-11 05:51:40
海外TECH	DEV Community	Redux Middleware – What it is and How to Build it from Scratch	https://dev.to/myogeshchavan97/redux-middleware-what-it-is-and-how-to-build-it-from-scratch-4fgl	Redux Middleware What it is and How to Build it from ScratchIn this article we will explore what is a middleware in Redux why it s used and how you can create your own middleware from scratch So let s get started Want to learn Redux from scratch and build a full stack food ordering app with stripe payment integration Check out my Mastering Redux course What Is Redux Middleware Redux Middleware allows you to intercept every action sent to the reducer so you can make changes to the action or cancel the action Middleware helps you with logging error reporting making asynchronous requests and a whole lot more Take a look at the below code import React from react import ReactDOM from react dom import createStore from redux const reducer state action gt switch action type case INCREMENT return state action payload case DECREMENT return state action payload default return state const store createStore reducer store subscribe gt console log current state store getState store dispatch type INCREMENT payload store dispatch type INCREMENT payload store dispatch type DECREMENT payload Here s a Code Sandbox Demo If you want to understand how the above code works in a step by step way check out my Redux for Beginners article As I explained in that article the createStore function accepts three arguments the first argument is a function that is normally known as a reducer required argumentthe second argument is the initial value of the state optional argumentthe third argument is a middleware optional argument How to Create Middleware in ReactTo create a middleware we first need to import the applyMiddleware function from Redux like this import applyMiddleware from redux Let s say we re creating a loggerMiddleware Then to define the middleware we need to use the following syntax const loggerMiddleware store gt next gt action gt your code The above code is equivalent to the below code const loggerMiddleware function store return function next return function action your code Once the middleware function is created we pass it to the applyMiddleware function like this const middleware applyMiddleware loggerMiddleware And finally we pass the middleware to the createStore function like this const store createStore reducer middleware Even though we mentioned above that middleware is the third argument to the createStore function the second argument initial state is optional So based on the type of arguments the createStore function automatically identifies that the passed argument is a middleware because it has the specific syntax of nested functions Here s an updated Code Sandbox Demo for the above code In the above Code sandbox demo the loggerMiddleware looks like this const loggerMiddleware store gt next gt action gt console log action action next action Here s a preview link for the above Code Sandbox demo If you check the console you will see the following output Before the action is dispatched to the store the middleware gets executed as we can see the action logged to the console Because we re calling the next function inside the loggerMiddleware by passing the action the reducer will also be executed which results in the change in the store Now what will happen If we don t call the next function inside the loggerMiddleware Then the action will not be sent to the reducer so the store will not be updated If you ve worked with Node js then you might find it similar to how middleware works in Node js In Node js middleware also if we don t call the next function the request will not be sent forward Here s an updated Code Sandbox Demo with the removed next function call const loggerMiddleware store gt next gt action gt console log action action Here s a preview link for the above Code Sandbox demo If you check the console you will see the following output As you can see we only get the actions logged to the console And as the action is not forwarded to the reducer it will not be executed so we don t see the console log from the store subscribe function As described earlier we can modify the action from the middleware before it s sent to the reducer Here s an updated Code Sandbox Demo where we re changing the payload of the action before it s sent to the reducer The code for the middleware looks like this const loggerMiddleware store gt next gt action gt console log action action action payload next action Here s a preview link for the above Code Sandbox demo As per the code once the action is logged to the console we re setting the action payload to a value of So the action type remains the same but the payload is changed So we see the state changed to initially Then again it s incremented by which makes it Finally it s decremented by making the final state value Before the action is sent to the reducer our loggerMiddleware gets called where we re changing the payload value and we re always setting it to before it s sent to the reducer So based on the action type INCREMENT or DECREMENT the reducer will always be changed by a value of Even though we re changing the action in the above code there is no issue in this case because it s a middleware and not a reducer Reducers should be a pure function and we shouldn t make any changes to state and action inside the reducer You can learn more about it in detail in my Mastering Redux Course In the above code examples we ve created a single middleware But you can create multiple middlewares and pass them to the applyMiddleware function like this const middleware applyMiddleware loggerMiddleware secondMiddleware thirdMiddleware All the middlewares mentioned in the applyMiddleware function will be executed one after the other Thanks for reading Check out my recently published Mastering Redux course In this course you will build apps along with food ordering app and you ll learn Basic and advanced ReduxHow to manage the complex state of array and objectsHow to use multiple reducers to manage complex redux stateHow to debug Redux applicationHow to use Redux in React using react redux library to make your app reactive How to use redux thunk library to handle async API calls and much moreand then finally we ll build a complete food ordering app from scratch with stripe integration for accepting payments and deploy it to the production Want to stay up to date with regular content regarding JavaScript React Node js Follow me on LinkedIn	2021-09-11 05:33:52
Apple	AppleInsider - Frontpage News	Motorcycle engine vibrations can 'degrade' iPhone camera performance	https://appleinsider.com/articles/21/09/11/motorcycle-engine-vibrations-can-degrade-iphone-camera-performance?utm_medium=rss	Motorcycle engine vibrations can x degrade x iPhone camera performanceApple on Friday warned iPhone users that exposing the device to intense vibrations like those from a motorcycle engine can negatively impact internal image stabilization and autofocus systems leading to reduced image quality As explained in a support document high amplitude vibrations at certain frequency ranges can cause long term problems with iPhone s camera system High power or high volume motorcycle engines are specifically called out as potential threats Modern iPhone models feature optical image stabilization and closed loop autofocus systems to help counteract errant hand movements Apple notes These mechanisms while designed for durability can be degraded by long term exposure to vibrations like those transmitted through the chassis and handlebars of a motorcycle Read more	2021-09-11 05:59:34
海外TECH	Engadget	Facebook has been giving misinformation researchers incomplete data	https://www.engadget.com/facebook-misinformation-researchers-incomplete-data-050143486.html?src=rss	Facebook has been giving misinformation researchers incomplete dataMisinformation researchers who ve been relying on the data Facebook provides them may have lost months or even years of work That s because the social network has been giving them flawed and incomplete information on how users interact with posts and links on the website according to The New York Times nbsp Facebook has been giving academics access to its data over the past couple of years to track the spread of misinformation on its platform It promised researchers transparency and access to all user interaction but the data the company has been giving them reportedly only includes interactions for about half of its users in the US Further most of the users whose interactions were included in the reports are the ones who engage with political posts enough to make their leanings clear In an email to researchers The Times saw Facebook apologized for the quot inconvenience it may have caused quot The company also told them that it s fixing the issue but that it could take weeks due to the sheer volume of data it has to process Facebook told the researchers though that the data they received for users outside the US isn t inaccurate Facebook spokesperson Mavis Jones blamed the data inaccuracy to a quot technical error quot which the company is apparently quot working swiftly to resolve quot As The Times notes it was University of Urbino associate professor Fabio Giglietto who first discovered the inaccuracy Giglietto compared the data handed over to researchers with the quot Widely Viewed Content Report quot the social network published publicly in August and found that the results didn t match nbsp Other researchers raised concerns after that report was published Alice Marwick a researcher from the University of North Carolina told Engadget that they couldn t verify those results because they had no access to the data Facebook used The company reportedly held a call with researchers on Friday to apologize Megan Squire one of those researchers told The Times quot From a human point of view there were people on that call today and every single one of those projects is at risk and some are completely destroyed quot Some researchers have been using their own tools to gather information for their research but in at least one instance Facebook cut off their access In August Facebook disabled the accounts associated with the NYU Ad Observatory project The team used a browser extension to collect information on political ads but the social network said it was quot unauthorized scraping quot At the time Laura Edelson the project s lead researcher told Engadget that Facebook is silencing the team because its quot work often calls attention to problems on its platform quot Edelson added quot If this episode demonstrates anything it is that Facebook should not have veto power over who is allowed to study them quot	2021-09-11 05:01:43
ニュース	@日本経済新聞 電子版	カットネギの鮮度を長持ち　植物工場のノウハウ生かす https://t.co/Tv2JUvOa6j	https://twitter.com/nikkei/statuses/1436567138936885249	植物工場	2021-09-11 05:47:50
ニュース	@日本経済新聞 電子版	AIアナが読むニュース　きょうの4本 https://t.co/wOovW3igfm	https://twitter.com/nikkei/statuses/1436556829526421508	Detail Nothing	2021-09-11 05:06:52
ニュース	@日本経済新聞 電子版	ENEOS、水素で「異業種」戦　脱・石油は険しい道 https://t.co/zC0xWVbk4T	https://twitter.com/nikkei/statuses/1436556827433451525	eneos	2021-09-11 05:06:52
海外ニュース	Japan Times latest articles	What does it mean to ‘never forget’?	https://www.japantimes.co.jp/news/2021/09/11/world/september-11-20th-anniversary-memory/	presumption	2021-09-11 14:00:38
海外ニュース	Japan Times latest articles	Astros blast Shohei Ohtani in 10-5 win over Angels	https://www.japantimes.co.jp/sports/2021/09/11/baseball/mlb/ohtani-roughed-up/	field	2021-09-11 14:03:45
ニュース	BBC News - Home	Record-chasing Djokovic sets up US Open final with Medvedev	https://www.bbc.co.uk/sport/tennis/58524531?at_medium=RSS&at_campaign=KARANGA	daniil	2021-09-11 05:22:07
ニュース	BBC News - Home	Highlights: Emma Raducanu beats Leylah Fernandez at Wimbledon 2018	https://www.bbc.co.uk/sport/av/tennis/58522608?at_medium=RSS&at_campaign=KARANGA	Highlights Emma Raducanu beats Leylah Fernandez at Wimbledon Watch highlights from Emma Raducanu s last meeting with US Open final opponent Leylah Fernandez in the second round of the girls singles at Wimbledon	2021-09-11 05:13:08
北海道	北海道新聞	女子サッカー、プロ「ＷＥリーグ」１２日に初シーズン開幕	https://www.hokkaido-np.co.jp/article/588149/	女子サッカー	2021-09-11 14:14:00
ニュース	Newsweek	後退するアメリカーー米中首脳電話会談で「一つの中国」を認め、ウイグル問題を避けたバイデン	https://www.newsweekjapan.jp/stories/world/2021/09/post-97083.php	後退するアメリカー米中首脳電話会談で「一つの中国」を認め、ウイグル問題を避けたバイデン月日、バイデンは習近平に電話を掛けて「衝突を避けたい」旨の意向を伝えたと日本では報道されているが、バイデンは本当は何と言ったのか、何を言わなかったのか。	2021-09-11 14:38:42