投稿時間:2023-07-21 15:26:26 RSSフィード2023-07-21 15:00 分まとめ(30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
ROBOT	ロボスタ	Amazon「Echo Show 5（第3世代）」発表、予約開始　処理速度20%向上、Alexa反応感度も向上　新色クラウドブルー追加	https://robotstart.info/2023/07/21/amazon-echoshow5-3rd-gen.html		2023-07-21 05:10:10
IT	ITmedia 総合記事一覧	[ITmedia PC USER] キヤノンITS、小中高校向けの教育機関用ソリューション「in Campus School IM」	https://www.itmedia.co.jp/pcuser/articles/2307/21/news146.html	incampusschool	2023-07-21 14:29:00
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】	【2023年版】若者が今使ってるSNS！Z世代向けSNSまとめ12選	https://gaiax-socialmedialab.jp/post-40749/	流行り廃り	2023-07-21 05:20:09
TECH	Techable（テッカブル）	発汗計測でココロとカラダの健康を読み解く信州大学発ベンチャー・スキノス、資金調達を実施！	https://techable.jp/archives/213858	大学発ベンチャー	2023-07-21 05:00:05
IT	情報システムリーダーのためのIT情報専門サイト IT Leaders	申請承認ワークフロー「楽々WorkflowII」がデータ入力を省力化、外部API連携で選択肢を取得 | IT Leaders	https://it.impress.co.jp/articles/-/25128	申請承認ワークフロー「楽々WorkflowII」がデータ入力を省力化、外部API連携で選択肢を取得ITLeaders住友電工情報システムは年月日、クラウド型ワークフローサービス「楽々WorkflowIICloud」に、外部システムのデータをAPI経由で取得して選択入力できる機能を追加したと発表した。	2023-07-21 14:25:00
python	Pythonタグが付けられた新着投稿 - Qiita	複数のカタログの共通項を高速探索	https://qiita.com/KoheiQiita/items/3b863435735fbdd12fc8	istaintersectionlistbindi	2023-07-21 14:59:24
python	Pythonタグが付けられた新着投稿 - Qiita	APIサーバをデーモンで動かすためのsupervisorの設定	https://qiita.com/kazukimatsumoto/items/07273a00bfad41fae1ec	golang	2023-07-21 14:20:52
AWS	AWSタグが付けられた新着投稿 - Qiita	S3のライフサイクルルールの設定	https://qiita.com/fujieee/items/c94b4c532b0e463e73dc	wafcharm	2023-07-21 14:33:26
AWS	AWSタグが付けられた新着投稿 - Qiita	APIサーバをデーモンで動かすためのsupervisorの設定	https://qiita.com/kazukimatsumoto/items/07273a00bfad41fae1ec	golang	2023-07-21 14:20:52
Docker	dockerタグが付けられた新着投稿 - Qiita	DockerでPytorch & Jupyter Lab環境を簡単構築する	https://qiita.com/yu-nakasatomi/items/623dab1949f28db03cde	anaconda	2023-07-21 14:09:20
golang	Goタグが付けられた新着投稿 - Qiita	APIサーバをデーモンで動かすためのsupervisorの設定	https://qiita.com/kazukimatsumoto/items/07273a00bfad41fae1ec	python	2023-07-21 14:20:52
技術ブログ	Developers.IO	[ついにきた！] IDE 上で GPT-4 ベースのチャットインターフェースによる開発支援が受けられる GitHub Copilot Chat のベータ提供が開始されました	https://dev.classmethod.jp/articles/github-copilot-chat-beta-launch/	delivery	2023-07-21 05:36:17
技術ブログ	Developers.IO	[アップデート] AWS WAFのレートベースルールの集約キーにURIパスが利用できるようになりました	https://dev.classmethod.jp/articles/aws-waf-rate-base-rule-support-uri-path-aggregation-key/	awswaf	2023-07-21 05:19:44
海外TECH	DEV Community	The Power of React Dom For Front-End Development	https://dev.to/scofieldidehen/the-power-of-react-dom-for-front-end-development-47f9	The Power of React Dom For Front End DevelopmentIn the rapidly evolving world of web development staying ahead of the curve is essential for creating dynamic responsive and user friendly interfaces Among the numerous front end frameworks available React has emerged as a dominant force revolutionizing how developers build interactive web applications This blog post explores React s key features and highlights its myriad benefits to developers and end users What is React React developed and maintained by Facebook is an open source JavaScript library for building user interfaces It follows the component based architecture concept dividing an application into smaller reusable components React allows developers to create complex UIs by combining these components seamlessly Since its release in React has gained immense popularity in the developer community and today it stands as one of the most widely adopted front end frameworks Key Features of React Virtual DOM React utilizes a virtual DOM Document Object Model to optimize the performance of web applications Instead of directly updating the real DOM React creates a virtual representation of it in memory When changes occur React calculates the difference between the virtual and real DOMs and updates only the necessary elements significantly reducing rendering time and enhancing overall application performance Component Reusability React promotes the idea of creating small self contained components that can be reused throughout the application This modular approach streamlines development increases code maintainability and allows teams to work collaboratively without stepping on each other s toes One Way Data Binding React enforces a unidirectional data flow ensuring that changes in the application state are reflected in the user interface This pattern simplifies debugging and makes understanding how data flows through the application easier leading to fewer bugs and improved stability JSX JavaScript XML With JSX React enables developers to write UI components using a syntax closely resembling HTML This fusion of JavaScript and HTML facilitates code readability and maintainability while providing a seamless development experience Benefits of React Performance and Speed As mentioned earlier React s Virtual DOM significantly improves performance by reducing the number of direct manipulations to the real DOM React ensures faster rendering and a smoother user experience by only updating the necessary parts of the interface Reusable Components React s component based architecture encourages reusability saving development time and effort Developers can create a library of components that can be applied across various projects leading to a more efficient and standardized development process Strong Community and Ecosystem React s popularity has resulted in a vast and active community of developers contributing to its growth and development This active ecosystem means access to a plethora of third party libraries tools and resources further streamlining development and offering solutions to common challenges SEO Friendly Search engine optimization SEO ensures your web application is discoverable Unlike other front end frameworks that rely heavily on client side rendering React can be effectively server side rendered making it more search engine friendly and improving the application s SEO performance Stable Codebase and High Quality With its one way data flow and strict component lifecycle methods React helps maintain a stable codebase These characteristics make it easier for developers to write predictable and high quality code leading to fewer bugs and a more robust application Key Features of React Every Developer must know As a developer mastering React s key features is essential to build powerful maintainable and performant applications JSX The Power of Declarative UIReact s JSX JavaScript XML enables developers to write UI components using a syntax similar to HTML JSX allows for a more intuitive and declarative way of describing UI elements making it easier to visualize and reason about the component structure import React from react const MyComponent amp gt   return     amp lt div amp gt       amp lt h amp gt Hello JSX amp lt h amp gt       amp lt p amp gt This is a declarative UI in React amp lt p amp gt     amp lt div amp gt   export default MyComponent lt code gt lt pre gt Components Reusable Building BlocksReact s component based architecture encourages reusability and modularity Components are self contained independent units of UI logic that can be combined to form complex user interfaces import React from react const Button onClick label amp gt   return amp lt button onClick onClick amp gt label amp lt button amp gt export default Button State and Props Managing DataReact s state and props are essential concepts for managing data in components State represents mutable data specific to a component while props are immutable data passed down from parent components import React useState from react const Counter amp gt const count setCount useState const handleIncrement amp gt setCount count return amp lt div amp gt amp lt h amp gt Counter count amp lt h amp gt amp lt button onClick handleIncrement amp gt Increment amp lt button amp gt amp lt div amp gt export default Counter Lifecycle Methods Managing Component BehaviorReact provides lifecycle methods that allow developers to control the behavior of components during different stages of their lifecycle Although some lifecycle methods are deprecated in React understanding them remains valuable import React Component from react class MyComponent extends Component componentDidMount console log Component mounted componentDidUpdate console log Component updated componentWillUnmount console log Component will unmount render return amp lt div amp gt My Component amp lt div amp gt export default MyComponent Virtual DOM Performance OptimizationAs discussed earlier React s Virtual DOM efficiently updates the actual DOM improving performance It allows developers to work with a lightweight in memory representation of the DOM import React useState from react const DynamicList amp gt const items setItems useState const handleAddItem amp gt setItems items Item items length return amp lt div amp gt amp lt button onClick handleAddItem amp gt Add Item amp lt button amp gt amp lt ul amp gt items map item index amp gt amp lt li key index amp gt item amp lt li amp gt amp lt ul amp gt amp lt div amp gt export default DynamicList FAQ Frequently Asked Questions What is React s Virtual DOM and why is it important The Virtual DOM is a lightweight in memory representation of the actual DOM in React It allows React to efficiently manage updates and minimize direct manipulations of the real DOM leading to significant performance improvements By calculating and applying only the necessary changes to the real DOM React reduces rendering time and provides a smoother user experience How does the Virtual DOM work in React React creates a new Virtual DOM tree that represents the updated state when there are updates to a React component It then compares this new Virtual DOM tree with the previous one using a process called diffing During the diffing process React identifies the minimal set of changes required to update the real DOM to match the new Virtual DOM tree Finally React efficiently applies these changes to the actual DOM avoiding unnecessary re renders and enhancing performance How can I optimize performance using the Virtual DOM in React There are several ways to optimize performance using the Virtual DOM in React Use PureComponent or React memo to prevent unnecessary re renders of components that haven t changed Use keys effectively when rendering lists of elements to help React identify unique elements and optimize updates Leverage shouldComponentUpdate to control when a component should update and avoid unnecessary rendering Are there any common pitfalls when working with the Virtual DOM in React Yes there are some common pitfalls to be aware of Using the index as list keys can lead to incorrect behavior and performance issues Using a unique ID or key that remains constant across renders is better Deeply nested component hierarchies can impact performance increasing complexity in the diffing process Overusing state or props in components can lead to excessive re renders and degrade performance   How can I profile Virtual DOM performance in my React application React provides the React DevTools a browser extension that helps you inspect and analyze React components and their updates By using the React DevTools you can identify performance bottlenecks view component hierarchies and analyze Virtual DOM updates enabling you to optimize your application s performance effectively Is the Virtual DOM unique to React or do other frameworks also use it The concept of the Virtual DOM is most closely associated with React but some other frontend frameworks and libraries also utilize similar ideas for performance optimization For example libraries like Vue js and Angular have adopted virtual DOM like mechanisms to efficiently manage UI updates and enhance rendering performance However the implementation details and performance characteristics may vary between these frameworks ConclusionReact has undeniably revolutionized the world of web development empowering developers to build cutting edge efficient and interactive user interfaces React offers numerous benefits through its virtual DOM component based architecture and strong community support including improved performance code reusability and SEO friendliness As the web development landscape evolves embracing React ensures your projects stay ahead of the curve and deliver exceptional user experiences So if you haven t explored React yet it s high time to dive into this powerful framework and unlock its potential for your web development endeavors If you find this post exciting find more exciting posts on Learnhub Blog we write everything tech from Cloud computing to Frontend Dev Cybersecurity AI and Blockchain Resource Getting Started with Programming Javascript Email with Nodemailer How to send an email in node js using nodemailer Javascript Array method Best React JavaScript Frameworks For	2023-07-21 05:46:07
医療系	医療介護 CBnews	急性期充実体制加算などの届け出に地域差-対人口比で、厚労省が指摘	https://www.cbnews.jp/news/entry/20230721144524	中央社会保険医療協議会	2023-07-21 14:45:00
金融	ニッセイ基礎研究所	商業施設売上高の長期予測	https://www.nli-research.co.jp/topics_detail1/id=75503?site=nli	商業施設売上高の長期予測目次ー商業施設はコロナ禍の不確実性に加え、少子高齢化とEC市場拡大が逆風にー少子高齢化の商業施設売上高への影響将来の人口・世帯数の推移単身世帯増加による物販・外食・サービス支出への影響高齢化による物販・外食・サービス支出への影響ーコロナ禍における消費構造の変化コト消費からモノ消費へのシフトが進む品目別にみた消費支出額一部のモノ消費では反動減年齢別にみた消費支出額コト消費への回帰の動きもーコロナ禍における消費チャネルの変化ECシフトの加速品目別にみたECシフト目立つ食料品のEC拡大年齢別にみたECシフト高年層のEC普及が進むー商業施設の売上環境のシミュレーション手法とシナリオ設定シミュレーション手法コロナ禍による消費行動の変容に関するシナリオ設定ー年までの商業施設の売上環境のシミュレーション結果物販・外食・サービス支出の見通し商業施設売上高の見通し可処分所得が増加した場合の商業施設売上高の見通しー長期的な下押し圧力のなか、運営力強化と投資対象の選別が求められる※本稿は年月日・日に発行した「基礎研レポート」を加筆・修正したものである。	2023-07-21 14:19:49
ニュース	BBC News - Home	Tories suffer two heavy by-election losses but hold Uxbridge	https://www.bbc.co.uk/news/uk-politics-66264317?at_medium=RSS&at_campaign=KARANGA	london	2023-07-21 05:04:14
ニュース	BBC News - Home	Dumped suitcases caused River Calder sewage leak	https://www.bbc.co.uk/news/uk-england-leeds-66260743?at_medium=RSS&at_campaign=KARANGA	horbury	2023-07-21 05:53:42
ニュース	BBC News - Home	Labour loss in Uxbridge blamed on Ulez expansion	https://www.bbc.co.uk/news/uk-politics-66264893?at_medium=RSS&at_campaign=KARANGA	victory	2023-07-21 05:34:32
ニュース	BBC News - Home	Curtice analysis: Sunak's headache after contrasting results	https://www.bbc.co.uk/news/uk-politics-66265060?at_medium=RSS&at_campaign=KARANGA	labour	2023-07-21 05:24:58
ニュース	BBC News - Home	Selby and Ainsty: 'I've heard far worse than Baby of the House'	https://www.bbc.co.uk/news/uk-england-york-north-yorkshire-66265187?at_medium=RSS&at_campaign=KARANGA	commons	2023-07-21 05:45:21
ニュース	BBC News - Home	Eardley analysis: Not a rout but a bad set of results for Tories	https://www.bbc.co.uk/news/uk-politics-66264788?at_medium=RSS&at_campaign=KARANGA	bleak	2023-07-21 05:55:28
ニュース	BBC News - Home	What do the results mean for UK politics?	https://www.bbc.co.uk/news/uk-politics-66264975?at_medium=RSS&at_campaign=KARANGA	victory	2023-07-21 05:10:17
ニュース	BBC News - Home	Justin Fashanu mural painted on Norwich pub wall	https://www.bbc.co.uk/news/uk-england-norfolk-66257855?at_medium=RSS&at_campaign=KARANGA	leeds	2023-07-21 05:36:50
ニュース	BBC News - Home	Nigeria 0-0 Canada: Christine Sinclair denied Fifa World Cup history by penalty save	https://www.bbc.co.uk/sport/football/66259649?at_medium=RSS&at_campaign=KARANGA	Nigeria Canada Christine Sinclair denied Fifa World Cup history by penalty saveChristine Sinclair misses out on becoming the first player to score at six Fifa World Cups after her penalty is saved as Canada draw with Nigeria	2023-07-21 05:17:18
ニュース	BBC News - Home	Women's World Cup 2023: England will be ready for anything - Ellen White column	https://www.bbc.co.uk/sport/football/66240166?at_medium=RSS&at_campaign=KARANGA	Women x s World Cup England will be ready for anything Ellen White columnEngland s experience means they are ready for anything at this World Cup says Lionesses record goalscorer and BBC Sport pundit Ellen White	2023-07-21 05:09:34
IT	週刊アスキー	ワクワクできる仕掛けが盛り沢山！ カプセルトイ専門店「＃C-pla」MARK IS みなとみらい店オープン	https://weekly.ascii.jp/elem/000/004/146/4146238/	markis	2023-07-21 14:30:00
IT	週刊アスキー	科学への興味と理解を深める2日間　「シン・科学教室」工学院大学新宿キャンパスにて8月25日・26日開催	https://weekly.ascii.jp/elem/000/004/146/4146252/	工学院大学	2023-07-21 14:30:00
IT	週刊アスキー	スマホアプリ『機動戦士ガンダム U.C. ENGAGE』公式生番組の第19回が7月24日19時より配信決定！	https://weekly.ascii.jp/elem/000/004/146/4146255/	ucengage	2023-07-21 14:25:00
IT	週刊アスキー	狩人オーシュット参戦！『オクトラ 大陸の覇者』にケノモの村などが追加	https://weekly.ascii.jp/elem/000/004/146/4146256/	octopathtraveler	2023-07-21 14:25:00