投稿時間:2023-04-05 15:14:08 RSSフィード2023-04-05 15:00 分まとめ(16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 Mobile] Android版のLINEでトーク履歴が消える不具合　バックアップ機能が原因か	https://www.itmedia.co.jp/mobile/articles/2304/05/news122.html	android	2023-04-05 14:30:00
IT	ITmedia 総合記事一覧	[ITmedia News] LINEクレカ、ついに「チャージ＆ペイ」の還元ゼロ％に	https://www.itmedia.co.jp/news/articles/2304/05/news125.html	itmedianewsline	2023-04-05 14:21:00
IT	ITmedia 総合記事一覧	[ITmedia ビジネスオンライン] スタバ、昨年好評「メロンフラペチーノ」を発売　果肉増量で「メロン感」訴求	https://www.itmedia.co.jp/business/articles/2304/05/news118.html	itmedia	2023-04-05 14:15:00
IT	ITmedia 総合記事一覧	[ITmedia News] 「LINE」Androidアプリに不具合、トーク履歴が消えるとの報告　バックアップ機能が原因か	https://www.itmedia.co.jp/news/articles/2304/05/news124.html	itmedia	2023-04-05 14:06:00
TECH	Techable（テッカブル）	スマホ撮影の幅が広がる！スリックから2つのCAMPERシリーズが登場	https://techable.jp/archives/202202	acamper	2023-04-05 05:00:32
AWS	AWSタグが付けられた新着投稿 - Qiita	AWS Certified Cloud Practitioner (CLF)合格した話	https://qiita.com/akira-hagi/items/619853c36249b2103dfd	iedcloudpractitionerclf	2023-04-05 14:02:45
Azure	Azureタグが付けられた新着投稿 - Qiita	Azure Stack HCIとは何か（1）メリット/デメリット編	https://qiita.com/k-kimino/items/a656154997a55e3c90f2	azurestackhci	2023-04-05 14:31:29
技術ブログ	Developers.IO	ECSの「スケジュールされたタスク」で実行時間にズレがあるときの対処方法	https://dev.classmethod.jp/articles/tsnote-ecs-scheduled-tasks-time-displacement/	amazonecs	2023-04-05 05:17:51
海外TECH	DEV Community	What is prop drilling in React?	https://dev.to/codeofrelevancy/what-is-prop-drilling-in-react-3kol	What is prop drilling in React Yo ho my hearties Prop drilling is the process of passing down data or state through multiple layers of a component hierarchy By the way it refers to the practice of passing data from a parent component to its children and then from the children to their own children and so on until the data reaches the desired component that needs it Prop drilling can be a necessary and effective way to manage application state it can also become a problem when the hierarchy of components becomes too deep or complex This can lead to several issues Let s say code duplication increased cognitive load and decreased maintainability With this article we will discuss what are props what prop drilling is and how it can impact your application We will also explore some best practices for fixing prop drilling in your codebase The horizon s embrace with the wind at our back and the sun on our face Let s set sail into the depths of prop drilling What are Props in React Props aka Properties are inputs to components They are single values or objects containing a set of values that are passed to components on creation similar to HTML tag attributes Here the data is passed down from a parent component to a child component Props are read only meaning that they cannot be modified by the component itself Used to customize the behavior or appearance of a component and they are passed down through the component tree in a unidirectional flow To show you what I mean function Snake props return lt h gt Hello props name lt h gt function DeadliestSnakes return lt div gt lt Snake name Inland Taipan gt lt Snake name King Cobra gt lt Snake name Russell s Viper gt lt Snake name Black Mamba gt lt div gt Let s Understand the Prop DrillingProp drilling occurs when a parent component passes data down to its children and then those children pass the same data down to their own children This process can continue indefinitely At the end it s a long chain of component dependencies that can be difficult to manage and maintain Let s say you have a component that displays a list of blog posts Each blog post has a title date author and content In order to display this information the parent component would need to pass down all of this data to its child components and those child components would need to pass it down to their own children and so on As you can imagine this process can become quite complex and unwieldy especially as your application grows in size and complexity The Problems with Prop DrillingProp drilling can lead to several issues in your codebase let s bring it on surface Code DuplicationWhen data needs to be passed down through multiple layers of components it can result in code duplication This occurs when the same data is passed down to multiple child components even though they may not need all of it This can lead to bloated and redundant code which can be difficult to maintain and debug Increased Cognitive LoadProp drilling can also increase the cognitive load on developers who need to understand and navigate the component hierarchy As the number of components and layers increases it can become difficult to keep track of which components are passing which data and where that data is being used This can make it more difficult to identify and fix bugs as well as to make changes or updates to the codebase Decreased MaintainabilityProp drilling can lead to decreased maintainability over time As your application grows in size and complexity it can become more difficult to add new features or make changes to existing ones At the end a codebase that is difficult to work with which can lead to decreased productivity and increased frustration for developers A Hunt of Prop Drilling for Cleaner React CodeThere are several ways that you can follow to fix prop drilling in your codebase Let s bring it on surface Use a State Management LibraryOne of the most effective ways to fix prop drilling is to use a state management library such as Redux or MobX These libraries provide a centralized store for managing application state which can help to eliminate the need for prop drilling Instead of passing data down through multiple layers of components you can simply connect each component to the store and access the data that you need directly You could refactor your code to use Redux Define a Redux store that holds the list of tasks import createStore from redux const initialState snakes function rootReducer state initialState action switch action type case ADD SNAKE return state snakes state snakes action payload case DELETE SNAKE return state snakes state snakes filter snake gt snake id action payload id case TRACK SNAKE return state snakes state snakes map snake gt if snake id action payload id return snake tracked true else return snake default return state const store createStore rootReducer Connect your components to the Redux store using the connect function import connect from react redux function SnakeList props const snakes props return lt ul gt snakes map snake gt lt Snake key snake id snake snake gt lt ul gt function mapStateToProps state return snakes state snakes export default connect mapStateToProps SnakeList Dispatch Redux actions to add delete or track snakes function Snake snake deleteSnake trackSnake const onTrackSnake id gt gt trackSnake id const onDeleteSnake id gt gt deleteSnake id return lt li gt lt input type checkbox checked snake tracked onChange onTrackSnake snake id gt snake title snake tracked Tracked Not Tracked lt button onClick onDeleteSnake snake id gt Delete lt button gt lt li gt function mapDispatchToProps dispatch return deleteSnake id gt dispatch type DELETE TASK payload id trackSnake id gt dispatch type TRACK SNAKE payload id export default connect null mapDispatchToProps Snake Implement Context APIIf you don t want to use a full fledged state management library you can also consider using the Context API in React This API provides a way to share data between components without the need for prop drilling Using the Context API you can create a context object that holds the data that you need to share You can then pass this context object down to the child components that need it without having to pass it down through You could use the Context API to share a snake object between components Create a snake context object import createContext from react export const SnakeContext createContext name Black Mamba fangs mm speed miles per hour color B dark brown Wrap your components in a provider component that provides the snake context function Jungle props const snake name Black Mamba fangs mm speed miles per hour color B dark brown return lt SnakeContext Provider value snake gt lt Header gt lt Main gt lt SnakeContext Provider gt Use the useContext hook to access the snake object in your child components import useContext from react function Header const color useContext SnakeContext return lt header style backgroundColor color gt lt h gt Snake lt h gt lt header gt function Main const name fangs speed useContext SnakeContext return lt main gt lt p gt Name lt span gt name lt span gt lt p gt lt p gt Venom Fangs lt span gt fangs lt span gt lt p gt lt p gt Speed lt span gt speed lt span gt lt p gt lt main gt Context is not limited to static values If you pass a different value on the next render React will update all the components reading it below This is why context is often used in combination with state Use cases for context ThemingCurrent accountManaging stateIf some information is needed by distant components in different parts of the tree it s a good indication that context will help you In the vast ocean of React development prop drilling can be a stormy challenge to navigate through But my fellow captains fear not With the right tools and techniques you can hoist the sails of clean and efficient code and steer your React application towards smoother waters️Happy coding and smooth sailing on your React adventures ‍ ️ Motivation SupportPlease consider following and supporting us by subscribing to our channel Your support is greatly appreciated and will help us continue creating content for you to enjoy Thank you in advance for your support YouTubeDiscordGitHub	2023-04-05 05:28:18
医療系	医療介護 CBnews	無償パルスオキシメーター、受付開始2日後に停止-10日再開、上限数は5個　厚労省	https://www.cbnews.jp/news/entry/20230405135246	医療機関	2023-04-05 14:10:00
金融	ニッセイ基礎研究所	空き家の物語の活用－よりよい居住を売却価値に－	https://www.nli-research.co.jp/topics_detail1/id=74424?site=nli	よりよい物語を作成するために行為者モデルおよび物語性尺度から空き家の訴求においてどのような物語を記述すべきかについてまとめると、対象の住宅において、入居者が入居から退去までの期間において、生活の様相が変わるようなライフイベントやトラブルに対して同居人や隣人の援助と共に、入居者がより良い生活を求め、自らや同居人がそれを享受することを目指して行動をし、なぜその行動を取ったか、その時にどのような感情を持ったかを記述する。	2023-04-05 14:03:53
ニュース	BBC News - Home	Cycling: Bridgend family 'got no justice' for son's crash death	https://www.bbc.co.uk/news/uk-wales-65087228?at_medium=RSS&at_campaign=KARANGA	jones	2023-04-05 05:02:15
ニュース	BBC News - Home	The Formula 1 hopeful who has only just passed her test	https://www.bbc.co.uk/news/uk-scotland-tayside-central-65176026?at_medium=RSS&at_campaign=KARANGA	street	2023-04-05 05:11:16
IT	週刊アスキー	北海道ならではの美味をたっぷり取り揃える　横浜高島屋「第20回 北の味便り 大北海道展」4月5日～17日開催	https://weekly.ascii.jp/elem/000/004/131/4131546/	高島屋	2023-04-05 14:30:00
IT	週刊アスキー	情緒あるインディー作品を紹介する配信番組「ヨカゼナイト」が4月6日20時より放送	https://weekly.ascii.jp/elem/000/004/131/4131580/	動画配信	2023-04-05 14:30:00
IT	週刊アスキー	計52曲聴ける！走る音ゲー『R2BEAT（アールツービート）』の試聴可能楽曲が追加	https://weekly.ascii.jp/elem/000/004/131/4131572/	rbeat	2023-04-05 14:05:00