投稿時間:2021-06-04 22:39:04 RSSフィード2021-06-04 22:00 分まとめ(51件)

カテゴリー等	サイト名等	記事タイトル・トレンドワード等	リンクURL	頻出ワード・要約等/検索ボリューム	登録日
IT	ITmedia 総合記事一覧	[ITmedia News] 「IGZO」で3次元集積メモリを開発　機械学習の高効率化に期待	https://www.itmedia.co.jp/news/articles/2106/04/news159.html	itmedia	2021-06-04 21:39:00
IT	ITmedia 総合記事一覧	[ITmedia News] ポケモンGO、6日は待望の「フカマル」大量発生　捕獲時の経験値3倍	https://www.itmedia.co.jp/news/articles/2106/04/news149.html	itmedia	2021-06-04 21:30:00
IT	ITmedia 総合記事一覧	[ITmedia News] 日産、EV「アリア」限定モデルの試乗体験などをオンライン化　ARモデルやドライブシミュレーションを用意	https://www.itmedia.co.jp/news/articles/2106/04/news158.html	itmedia	2021-06-04 21:16:00
python	Pythonタグが付けられた新着投稿 - Qiita	Seabornでグラフを描画したときにxlabelにすべての要素が入ってしまうときに確認すること	https://qiita.com/Sicut_study/items/52c5de85825a9ee4efa4	解決方法原因は都道府県名のカラム型がcategory型であることでした。	2021-06-04 21:43:52
python	Pythonタグが付けられた新着投稿 - Qiita	Pandasのgroupbyでないはずの要素もまとまられてしまいNaNになってしまう	https://qiita.com/Sicut_study/items/604f0a605389849de445	今回は、groupbyで想定していない動きになり困っていたのですが、質問サイトに投稿したところデバックをしていくうちに真相にたどり着いたのでまとめたいと思います。	2021-06-04 21:19:50
js	JavaScriptタグが付けられた新着投稿 - Qiita	InDesign スクリプト 要素名に（構造の選択された属性の値を）	https://qiita.com/kohakunekotarou/items/78b4cec2b89b8f668417		2021-06-04 21:32:37
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	phpのバグを見つけたいです	https://teratail.com/questions/342219?rss=all	phpのバグを見つけたいです上記サイトさんで主に質問投稿しましたけれど反映されませんのでこちらで質問させてください。	2021-06-04 21:57:02
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	long型の数値には末尾にLを付与するがbyte,short型には付与しないのはなぜか	https://teratail.com/questions/342218?rss=all	long型の数値には末尾にLを付与するがbyteshort型には付与しないのはなぜかlong型の数値には末尾にlLを付与しなければいけません。	2021-06-04 21:52:31
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	レスポンシブデザインに対応させたい	https://teratail.com/questions/342217?rss=all	レスポンシブデザインに対応させたいPCで表示すると図のような画面になります。	2021-06-04 21:51:31
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	Google カレンダーのイベントに添付されているファイル情報の取り出し方	https://teratail.com/questions/342216?rss=all	attachments	2021-06-04 21:46:21
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	Next.js で next dev時に<JavaScript heap out of memory>エラー	https://teratail.com/questions/342215?rss=all	Nextjsでnextdev時にltJavaScriptheapoutofmemorygtエラーNextjsのアプリを作成中、npmnbsprunnbspdevを実行すると以下のエラーが発生。	2021-06-04 21:46:19
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	fizzbuzz問題の柔軟化を目指すために、割る数:割れたら表示する文字　調べる数。を入力したら割れる数なら文字を表示して、われないならそのまま調べる数を出力するプログラムを教えてください。	https://teratail.com/questions/342214?rss=all	発生している問題・エラーメッセージエラーメッセージ該当のソースコードソースコード試したことここに問題に対して試したことを記載してください。	2021-06-04 21:40:45
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	Power BI のチャート「テーブル」にて、ある条件に該当する商品ごとの直近の日付の表示について	https://teratail.com/questions/342213?rss=all	anbspnbspnbspbcabc	2021-06-04 21:37:50
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	エクセルの数値入力について（価格表示形式）	https://teratail.com/questions/342212?rss=all	エクセルの数値入力について価格表示形式エクセルの数字入力についてエクセルで数字を価格表示形式にしたいのですが→￥税込のように変換して表示したいです。	2021-06-04 21:21:31
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	addメソッドを宣言してインスタンスを追加する方法	https://teratail.com/questions/342211?rss=all	追加	2021-06-04 21:11:13
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	透過して重ね合わせを一括で行いたい	https://teratail.com/questions/342210?rss=all		2021-06-04 21:10:40
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	似た処理を行う関数が複数あるプログラムの設計	https://teratail.com/questions/342209?rss=all	似た処理を行う関数が複数あるプログラムの設計前提・実現したいことプログラムの設計に関する質問です。	2021-06-04 21:05:23
AWS	AWSタグが付けられた新着投稿 - Qiita	[AWS Athena] 入門 ローカルのCSVをS3にアップロードしAthenaでクエリ叩くまで	https://qiita.com/knakazono10111/items/bd45a6ab75527ca8c7de	AtenaはSに保存されているファイルをデータソースにして、SQLでデータの読込が出来るサービスなので、まずはSにアップロードするところから始まります。	2021-06-04 21:59:27
AWS	AWSタグが付けられた新着投稿 - Qiita	AWS EC2 Linux2 アクセスログを確認してみた	https://qiita.com/quryu/items/3840f9b76e33fc00a490	typeUSERLOGINmsgauditpiduidauidsesmsgoploginacctecuserexeusrsbinsshdhostnameaddrxxxxxxxxxxxxterminalsshresfailedtypeUSERAUTHoppubkeyauthは鍵認証が成功したログが残っています。	2021-06-04 21:22:03
GCP	gcpタグが付けられた新着投稿 - Qiita	ちょ、待てよ、、営業でも簡単にインスタンス立つじゃん	https://qiita.com/chomateyo/items/f319c54faaf9ffcd4036	仮想化かそうか、英語virtualizationとは、コンピュータのリソースを抽象化することであり、ソフトウェアと物理的なハードウェアの間に抽象化されたレイヤーを提供することで、コンピュータリソースを管理するための様々な技術である。	2021-06-04 21:45:33
Ruby	Railsタグが付けられた新着投稿 - Qiita	MacのターミナルとVSCodeのターミナルで動作が違っている現象を解決する	https://qiita.com/CoGee/items/4b872445954fe5a1e2f9	解決するためにやったことパスの記述ファイルを変更するVSCodeのターミナル上でwhichrubyを実行するとusrbinrubyとなり、環境構築で行ってきたrbenv下ではなくなっている。	2021-06-04 21:49:47
Ruby	Railsタグが付けられた新着投稿 - Qiita	【Vagrant】vagrantをコピーして2つ同時に立ち上げたい	https://qiita.com/Alice_ecilA/items/54b4624f0126c7eec5e5	【Vagrant】vagrantをコピーしてつ同時に立ち上げたい環境MacOSVirtualBoxVagrantProblemvagrantの環境を作成したプロジェクトファイル丸ごとコピーして同時に立ち上げたいという場面がどれだけあるのか分かりませんが、私は今回その場面に直面しましたので残しておきます。	2021-06-04 21:37:23
技術ブログ	Developers.IO	Aurora MySQL の Innodb_buffer_pool_size を変更する	https://dev.classmethod.jp/articles/aurora-mysql-freeablememory/	aurora	2021-06-04 12:10:44
海外TECH	DEV Community	Codecademy Certificate	https://dev.to/mehran1801/codecademy-certificate-22ln	certificatei	2021-06-04 12:28:34
海外TECH	DEV Community	Button events in React	https://dev.to/softwaredevacademy/button-events-in-react-5cml	Button events in ReactBehind the scenes buttons in React behave like pure JavaScript buttons The advantage is that you can put the event directly in the button without creating a variable to reference the button Pre requisitesArrow functions A video that will help you convert normal functions to arrow functions to be comfortable reading React code Intended resultFigure A simple page with buttons Figure App hierarchy diagram Legend Blue Component created by us ️Grey Normal tags Getting startedThere are many ways to create button events in React but let s focus on They depend if you want to call a function without passing arguments or if you need to pass arguments Calling a function without passing argumentsCalling a function that needs to pass arguments  Calling a function without passing arguments export default function App function myFunction alert You click me return lt div className App gt lt button onClick myFunction gt Click me lt button gt lt div gt Let s analyze the code function myFunction Is the function called when you click on a button onClick myFunction the onClick property will fire the function that you pass to it Note We don t put parenthesis in the function inside onClick Doing so will run the function when the page load and then the button won t work when the user clicks on it   Calling a function that needs to pass arguments export default function App function myGreet name alert Hello name return lt div className App gt lt button onClick gt myGreet Ana gt Click me lt button gt lt div gt Let s analyze the code function myGreet name The function to run note that it has an argument onClick gt myGreet Eduardo In order to pass a function with arguments we need to create a function on the fly inside the onClick event When the user clicks on the button it will call the arrow function thus running any code inside it Here is where the arrow function comes to fruition This allows us to write a shorter syntax to avoid making our JSX messy Finally you can pass as many arguments as you want But to be organized stick to or arguments If you need to pass more arguments use an object or array for better organization ConclusionThis article will allow you to practice how to use buttons to modify information on the screen by manipulating the state The next article is Form events in React that goes deeper into the state so users can submit data to your application In you want to see the finished code open this link and open the branch buttons Additional readingHandling Events official React documentation Credits Cover photo Photo by Matthew T Rader on Unsplash	2021-06-04 12:22:30
海外TECH	DEV Community	Manage server state with useEffect hook	https://dev.to/softwaredevacademy/manage-server-state-with-useeffect-hook-3hbc	Manage server state with useEffect hook Video tutorial of this articleThis article will teach the basics of the useEffect hook to make fetch calls to a server We will use the fantastic and free API mockup resource called JsonPlaceholder to practice some network calls Pre requisitesPromises Explains a way to run code only after other code that we don t know when is going to be ready Note If you want to use Async amp Await there is a special hook called useCallback more info in the section Additional reading Intended resultFigure Todo listFigure App hierarchy chart Anatomy of the useEffect hookFigure The parameters of the useEffect hook The first parameter is a function usually written as an arrow function Inside the function you do your network call using fetch The second parameter is an array of state variables It is used to tell React to re render the page only when these state variable changes If you omit the second parameter React will enter an infinite loop crashing the application Why Because as we mentioned during the Introduction to State management React refreshes the page each time the state changes But if we refresh the page the fetch data will be called again changing the state and the page will be refreshed and so on a so forth Think about the second parameter as a brake to tell React to refresh the page once instead of entering an infinite loop Getting startedTo tackle the complexity we will focus on areas General app setupuseEffect first argument function useEffect second argument array import useEffect useState from react import TaskItem from components Item export default function App console log App jsx created State const taskData setTaskData useState Method useEffect gt console log App jsx useEffect fetch then response gt response json then json gt setTaskData json setTaskData Component const TaskList taskData map item gt return lt TaskItem key item id prop item gt return lt div className App gt lt ol gt TaskList lt ol gt lt div gt Note This is the first exercise we have a console log inside the code This is on purpose so you can open the console and see the exact moment the App jsx component is destroyed and recreated once we have the server s data Lets break down the code line by line   General App We import the new hook useEffect in addition to the useState hook We create a state variable called taskItemData as an empty array to hold the todo items fetched from the server We use the useEffect hook directly without assigning a const or a function Finally TaskList is a list of lt TaskItems gt by using the taskData state getter and we pass to each copy its corresponding item   useEffect first argument Inside useEffect we pass the arrow function This will be called each time the contents of the App component change In this case we want to refresh the page when new data arrives from the server Inside the arrow function a fetch function calls the server Note that we need to append then statements to To convert our raw data into legible JSON To assign this JSON to our taskData state using the setTaskData setter   useEffect second argument We put setTaskData in the array inside the second argument of the useEffect hook Because we are only calling the setter and not the getter we don t need to add taskData If you omit the entirely React will enter an infinite loop because each time you set setTaskData the state will change refresh the page and when you set the data again it will refresh over and over If you put the but leave it empty React will refresh the page time only This will work for this small example but on bigger projects this will stop calling other network calls because you aren t allowing the page to refresh when other pieces of state change So get used to putting the necessary state getters and setters ConclusionThis example taught you the basics of fetching data using the useEffect hook You can take a break before moving to the articles intended for the next day or click here to continue your studies My recommendation is to practice creating individual projects for each API endpoint that JSONPlaceholder has The goal is to get comfortable setting up the useEffect hook and write its arguments without copying and pasting the code If you want to see the finished code open this link and open the branch server state Additional readingReact hooks documentation For a detailed explanation of the difference between all the available hooks useCallback hook A short video tutorial to help you organize your useEffect code into smaller separated async functions CreditsCover Photo by Alexey Savchenko on UnsplashVideo tutorial Learn useEffect In Minutes React Hooks Explained by Web Dev Simplified	2021-06-04 12:18:49
海外TECH	DEV Community	Manage local state with useState hook	https://dev.to/softwaredevacademy/manage-local-state-with-usestate-hook-3j2k	Manage local state with useState hookVideo tutorial for this articleLet s put into practice the concepts of state by using the useState hook to show and update information on the screen Pre requisitesDestructuring Watch from the beginning when it mentions arrays until it mentions objects Intended result Figure The components we will build the one on the left without state and the one on the right with the state hook Figure The application hierarchy diagram Type of React HooksReact has many kinds of hooks but today we will focus on the most basic yet most used scenario to keep the learning process simple The most common used React Hooks to manage different kinds of state This article will cover the first case the useState variable for local state management Creating a useState hookTo create a useState state follow these steps import useState from react export default function App const state setState useState function increase setState state return lt div className App gt lt p gt Count state lt p gt lt button onClick increase gt Increase counter lt button gt lt div gt For now ignore the button that calls a function we will see it in greater detail on the article about buttons Let s analyze the code line by line import useState from react allows us to import the React Hook functionality const state setState useState allows us to initialize the React Hook The first value is the getter The second value is the setter Inside useState we put the initial value state inside the JSX is used to call the getter and display the information on the screen setState is used to call the setter and update the information on the screen You can create hooks using strings numbers booleans arrays and objects Technically it will allow you to use functions and classes but those have some synchronization issues so please stick with the basic data types mentioned above ConclusionBy reading the theory article and practicing with the code example it will be easy to understand how to use hooks Now we can move to the next article Button events in React to learn how to use events to manipulate the page using buttons In you want to see a similar exercise open this link and open the branch state Additional readingState and Lifecycle The official documentation of React covering state management Ignore the components that use classes because they are obsolete and focus only on components that use functions Hook API Reference The official documentation of React covering the topic of React Hooks Read it in case you want a in depth review of how hook works and more advance types of hooks CreditsCover Photo by Mael BALLAND on UnsplashVideo tutorial Learn useState In Minutes React Hooks Explained by Web Dev Simplified	2021-06-04 12:17:44
Apple	AppleInsider - Frontpage News	TikTok can collect users' biometric data according to its new privacy policy	https://appleinsider.com/articles/21/06/04/tiktok-can-collect-users-biometric-data-according-to-its-new-privacy-policy?utm_medium=rss	TikTok can collect users x biometric data according to its new privacy policyTikTok s newly updated privacy policy grants the company the right to collect biometric data from its users and it isn t clear when or why it may begin doing this The biometric data in question would be users faceprints and voiceprints which would allow the company to attempt to identify users who upload videos to TikTok Collection details are included in TikTok s most recent privacy policy under a new section titled Image and Audio Information under the subhead Information we collect automatically TikTok released the new policy on Wednesday Read more	2021-06-04 12:56:29
Apple	AppleInsider - Frontpage News	Mercedes-Benz adds Apple Music to C-Class and S-Class models	https://appleinsider.com/articles/21/06/04/mercedes-benz-adds-apple-music-to-c-class-and-s-class-models?utm_medium=rss	Mercedes Benz adds Apple Music to C Class and S Class modelsMercedes Benz has added Apple Music to C Class and S Class models directly to the internet connected infotainment system Mercedes Benz adds Apple Music to infotainment system Image Credit DaimlerApple Music users generally have to connect their iPhone directly to their vehicle wirelessly or via Lightning to listen to music This is usually accomplished via CarPlay but Mercedes Benz has integrated the service directly into their internet connected infotainment system Read more	2021-06-04 12:26:54
Apple	AppleInsider - Frontpage News	iPhone 12 canal rescuers further detail MagSafe fishing expedition	https://appleinsider.com/articles/21/06/04/iphone-12-canal-rescuers-further-detail-magsafe-fishing-expedition?utm_medium=rss	iPhone canal rescuers further detail MagSafe fishing expeditionThe rescuers who recovered an iPhone Pro from a canal using a MagSafe fishing line have released a video showing how it was done The moment the iPhone Pro was recoveredWhen a friend told developer Frederik Riedel about dropping an iPhone Pro into a Berlin canal the two of them ultimately devised a way to retrieve it As previously reported they constructed a fishing line with a magnet attached in order to connect to the MagSafe charging area on the back of the phone Read more	2021-06-04 12:01:40
海外TECH	Engadget	Apple's AirPods Max are $30 off at Amazon and B&H Photo	https://www.engadget.com/apple-airpods-max-deal-30-off-amazon-bh-photo-124428269.html?src=rss_b2c	airpods	2021-06-04 12:44:28
海外TECH	Engadget	Engadget Podcast: NVIDIA, AMD and Intel sweep virtual Computex	https://www.engadget.com/engadget-podcast-nvidia-rtx-3080-ti-amd-intel-cpu-computex-2021-alessandro-cortini-interview-123029069.html?src=rss_b2c	Engadget Podcast NVIDIA AMD and Intel sweep virtual ComputexThis week Cherlynn and Devindra chat about the big news from virtual Computex NVIDIA s RTX Ti and Ti AMD s Radeon M mobile graphics and Intel s latest chips	2021-06-04 12:30:29
Cisco	Cisco Blog	The Future of Work: Governments’ Next Normal	https://blogs.cisco.com/government/the-future-of-work-governments-next-normal	government	2021-06-04 12:00:54
海外TECH	CodeProject Latest Articles	Building a Teams Power App for Retail 1: Creating a Power App and Dataverse Database	https://www.codeproject.com/Articles/5303163/Building-a-Teams-Power-App-for-Retail-1-Creating-a	appointments	2021-06-04 12:31:00
ニュース	BBC News - Home	UK approves Pfizer jab for 12 to 15-year-olds	https://www.bbc.co.uk/news/health-57358446	group	2021-06-04 12:09:08
ニュース	BBC News - Home	Covid-19: Portugal queries amber status as UK tightens rules	https://www.bbc.co.uk/news/uk-57353048	covid	2021-06-04 12:38:36
ニュース	BBC News - Home	Brexit: UK announces trade deal with Norway, Iceland and Liechtenstein	https://www.bbc.co.uk/news/uk-politics-57347874	brexit	2021-06-04 12:12:38
ニュース	BBC News - Home	Hillsborough: Police forces agree cover-up compensation for victims	https://www.bbc.co.uk/news/uk-england-merseyside-57356486	hillsborough	2021-06-04 12:38:22
ニュース	BBC News - Home	Covid in Scotland: Number of new cases highest since February	https://www.bbc.co.uk/news/uk-scotland-scotland-politics-57359137	february	2021-06-04 12:06:49
ニュース	BBC News - Home	'After Tokyo, I'll be ready for a new challenge' - Jonny Brownlee to end Olympic career	https://www.bbc.co.uk/sport/triathlon/57356745	x After Tokyo I x ll be ready for a new challenge x Jonny Brownlee to end Olympic careerTwo time Olympic triathlon medallist Jonny Brownlee tells BBC Sport that the Tokyo Games this summer will be his last	2021-06-04 12:48:26
ニュース	BBC News - Home	Thomas Tuchel: Chelsea manager signs contract extension until 2024	https://www.bbc.co.uk/sport/football/57360302	thomas	2021-06-04 12:32:26
ビジネス	ダイヤモンド・オンライン - 新着記事	来週（6/7～11）の日経平均株価の予想レンジは、 2万8500～2万9500円！ 膠着したレンジ相場の中、 上値抵抗線の75日移動平均線を突破する展開に期待！ - 来週の日経平均株価の予想レンジを発表！	https://diamond.jp/articles/-/273240		2021-06-04 21:30:00
北海道	北海道新聞	自民「清新」を演出　実態は「駆け引き」　衆院道２区候補に高橋氏　結束見通せず	https://www.hokkaido-np.co.jp/article/551971/	札幌市北区	2021-06-04 21:16:12
北海道	北海道新聞	札幌・北区、当別でクマ出没相次ぐ　茨戸川緑地を閉鎖	https://www.hokkaido-np.co.jp/article/551975/	目撃情報	2021-06-04 21:14:00
北海道	北海道新聞	２回目接種の医療者２１％発熱　岩見沢・中央労災病院　１回目の１２倍	https://www.hokkaido-np.co.jp/article/551972/	労災病院	2021-06-04 21:13:00
北海道	北海道新聞	漂着物の「聖地」石狩浜　タマネギ、石炭…いろんなものが海から川から	https://www.hokkaido-np.co.jp/article/551970/	白熱電球	2021-06-04 21:06:00
北海道	北海道新聞	「安定感あった馬」「十勝の誇り」　ばんえい競馬　ホクショウマサル急死　惜しむ声	https://www.hokkaido-np.co.jp/article/551969/	惜しむ声	2021-06-04 21:06:00
北海道	北海道新聞	感染高止まり　帯広保健所　対応業務急増　周辺自治体から応援も	https://www.hokkaido-np.co.jp/article/551968/	十勝管内	2021-06-04 21:05:00
北海道	北海道新聞	日０―６巨（４日）　日ハム４度目の零敗	https://www.hokkaido-np.co.jp/article/551963/	日本ハム	2021-06-04 21:01:37
ニュース	Newsweek	「研究所流出説」を甦らせた素人ネット調査団、新型コロナの始祖ウイルスを「発見」！	https://www.newsweekjapan.jp/stories/world/2021/06/post-96453.php	鉱山労働者のうち人はSARSウイルスに似たウイルスの抗体検査で陽性だったこと、これらの検査結果は全て、武漢の研究所に報告されていたことも分かったシーカーがつの論文のリンクを貼った直後に、中国はCNKIのアクセス管理を変更し、彼が行なったような調査はできなくなった。	2021-06-04 21:25:00
仮想通貨	BITPRESS（ビットプレス）	bitFlyer、6/3よりbitFlyer USAとの間で「米国・日本間クロスボーダー取引」を開始	https://bitpress.jp/count2/3_10_12543	bitflyer	2021-06-04 21:44:53