投稿時間:2023-01-27 14:25:56 RSSフィード2023-01-27 14:00 分まとめ(30件)

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IT ITmedia 総合記事一覧 [ITmedia News] 「こんなんでも時給発生してます」 セブン-イレブンの“バイトテロ”が物議 https://www.itmedia.co.jp/news/articles/2301/27/news132.html itmedia 2023-01-27 13:30:00
IT ITmedia 総合記事一覧 [ITmedia News] デジタル給与「利用したい」人は約2割 その理由は? https://www.itmedia.co.jp/news/articles/2301/27/news052.html itmedia 2023-01-27 13:27:00
IT ITmedia 総合記事一覧 [ITmedia PC USER] オーム電機、フルHD録画に対応した小型軽量Webカメラ https://www.itmedia.co.jp/pcuser/articles/2301/27/news134.html itmediapcuser 2023-01-27 13:22:00
IT ITmedia 総合記事一覧 [ITmedia News] VTuberが“転生”せず事務所移籍 ビジュアルや名前はそのまま Twitterでは「画期的な出来事」と話題に https://www.itmedia.co.jp/news/articles/2301/27/news133.html itmedianewsvtuber 2023-01-27 13:20:00
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 加賀電子、電力代をAIで削減するシステム「AIrux8」を販売、状況に応じて照明やエアコンを自動制御 | IT Leaders https://it.impress.co.jp/articles/-/24368 加賀電子、電力代をAIで削減するシステム「AIrux」を販売、状況に応じて照明やエアコンを自動制御ITLeaders加賀電子は年月日、電力コスト削減AIシステム「AIrux」を販売すると発表した。 2023-01-27 13:03:00
python Pythonタグが付けられた新着投稿 - Qiita Google Colab環境でChromiumを使う方法 https://qiita.com/egg_log/items/2f4ad5bc43c94efe4a0b chromium 2023-01-27 13:50:21
js JavaScriptタグが付けられた新着投稿 - Qiita paizaラーニング レベルアップ問題集 二分探索メニュー応用編 JavaScript ハイパーインフレーション https://qiita.com/ZampieriIsa/items/9c31e73cc9e6a2d9b12b javascript 2023-01-27 13:50:24
Linux Ubuntuタグが付けられた新着投稿 - Qiita Google Colab環境でChromiumを使う方法 https://qiita.com/egg_log/items/2f4ad5bc43c94efe4a0b chromium 2023-01-27 13:50:21
AWS AWSタグが付けられた新着投稿 - Qiita AWS CodeCommitを試してみたメモ(2023.1時点) https://qiita.com/smats-rd/items/816cd5bc2fa05e4d1fa4 awscodecommit 2023-01-27 13:52:19
AWS AWSタグが付けられた新着投稿 - Qiita 【AWS】SSMパラメータストアを設定する メモ https://qiita.com/huntas0624/items/38a71279eabb21831f65 awssystemsmanager 2023-01-27 13:35:59
golang Goタグが付けられた新着投稿 - Qiita []byte("a", "b", "c") でエラーがでる理由わかる?正しい書き方は? https://qiita.com/yNavS4Ki/items/0708f8092378f9211745 nyargumentsinconversionto 2023-01-27 13:45:41
Azure Azureタグが付けられた新着投稿 - Qiita Azure Synapse Analytics って何? https://qiita.com/neuwann/items/403d11c5ba19a005696b microso 2023-01-27 13:53:55
Azure Azureタグが付けられた新着投稿 - Qiita Azure Virtual MachineのCPU負荷を監視し通知を受け取る https://qiita.com/t_ymgt/items/099947265134ffd930d3 azurevirtualmachine 2023-01-27 13:43:14
Git Gitタグが付けられた新着投稿 - Qiita AWS CodeCommitを試してみたメモ(2023.1時点) https://qiita.com/smats-rd/items/816cd5bc2fa05e4d1fa4 awscodecommit 2023-01-27 13:52:19
技術ブログ Developers.IO MomentoがList・Set・Dictionaryデータ型をサポートしました https://dev.classmethod.jp/articles/momento-collection/ dictionary 2023-01-27 04:49:39
海外TECH DEV Community useState() 🪝 https://dev.to/mihir_chhatre/usestate-4imn useState 🪝Let us first understand state in React State can be imagined as the data or property that is used within an application These data property values would likely change over time and the State hook in React helps us track amp manage the changing states To use the State hook we need to import it as shown below import React useState from react We can then invoke useState inside the component function and pass an initial state this value can be any type such as string number or object as an argument const count setCountValue useState The useState hook returns an array where the first element corresponds to the current state and the second element is a function that allows us to update the current state Let s get building ️Consider the code for a simple counter functionality import React useState from react const App gt const count setCountValue useState const decrement gt setCountValue prevState gt prevState const increment gt setCountValue prevState gt prevState return lt div gt lt button onClick decrement gt lt button gt lt span gt count lt span gt lt button onClick increment gt lt button gt lt div gt export default App Simplifying the code above useState is called within the component function and an initial state is passed to it This means that when the component is rendered for the first time when the page is loaded initially the counter is set to As mentioned earlier useState returns an array with two elements Here using array destructing the current state is stored in the count variable and the function to update the current state is setCountValue The button triggers the increment function and triggers the decrement function I am using the setCountValue function to update the current state value Let s have a look at a common mistake developers tend to make when trying to update the state using the previous state const decrement gt setCountValue count Why is the above approach an incorrect one to update the state value When we modify the state using the previous state value in the above code we are using the count variable directly we must use the function version of setting state as shown below const decrement gt setCountValue prevState gt prevState prevState is the previous state snapshot that React provides The reason behind using this approach is that the state updating function in React schedules the state update By using the function version to set the state we can ensure that the previous state is always updated latest Diving deeper into useState Each time the state updating function is called the state is updated and the component function from which the useState is initialized is executed again It is also important to remember that useState registers a different state for each component instance and React manages states independently on a per component basis Here are two frequently frequently asked questions when using useState Why does useState use const since the state value is updated gt The way to think about this question is that each time the component is rendered state update function is called a new variable is created and managed somewhere else internally by React Does the default state not override the current state value each time the state updating function is called and the component is rendered gt React keeps track of the first instance where useState was called and prevents any default state overwrites during subsequent component renders Another important concept to understand is how to work with objects and useState const state setState useState count toggle Yes const count state count const toggle state toggle function decrement setState prevState gt return count prevState count The above code is incorrect since the setState update function overrides the previous state with only the updated count toggle Yes is removed The correct way to use an object is to spread the previous state and then set the new state function decrement setState prevState gt return prevState count prevState count Finally lets talk about an advance concept when using useState Consider setting the initial state as a useState a When using state hook the initial state a is called each time the function is run If a computationally complex argument is defined as the initial state it would run during every subsequent component function render leading to a degradation in performance Therefore there is another way to pass state to useState a function version useState gt return The approach runs the initial state function only during the first component render This approach is preferred when we have a computationally intensive initial state The gamut of information around useState can be overwhelming Remember to go slow and understand the concepts as it would you build a base in React 2023-01-27 04:47:10
海外TECH DEV Community Intro to Hooks https://dev.to/mihir_chhatre/intro-to-hooks-39g7 Intro to HooksUsing hooks in React can be daunting My goal through this series is to simplify the different hooks used in React allowing folks to start implementing these concepts into their builds Since this is Part of the series let s scratch the surface on hooks The React documentation defines hooks as Functions that let you “hook into React state and lifecycle features from function components The above definition will make a lot more sense as we go through this series but it is important to remember a few important points when using any hook in React gt Hooks can only be used inside function components and they cannot be used inside class components Hooks must execute in the same order in each component render This essentially means you cannot use a hook inside a conditional block such as if You can always reference the official React documentation to learn more about hooks but since series is about understanding the different hooks I am jumping right into one of the most widely used hooks the State Hook 2023-01-27 04:46:47
海外TECH DEV Community Will ChatGPT replace Developer's Job? https://dev.to/dhruvjoshi9/will-chatgpt-replace-developers-job-37j2 Will ChatGPT replace Developer x s Job In recent years advancements in natural language processing NLP have led to the development of powerful language models such as GPT which has the ability to generate human like text and answer questions with a high degree of accuracy With such capabilities it s natural to wonder if these models will eventually replace the role of developers in the tech industry First it s important to understand what a developer s job entails Developers are responsible for designing coding testing and maintaining software applications They are responsible for ensuring that the software functions properly and meets the needs of the end user They also need to stay current with new technologies and programming languages which requires continuous learning and adaptability Now let s look at the capabilities of ChatGPT It is a language model that has been trained on a massive amount of text data which enables it to generate text that is similar to human writing It can also answer questions and provide information with a high degree of accuracy However it s important to note that ChatGPT is a tool that can be used to assist developers in their work rather than a replacement for their expertise and problem solving abilities For example ChatGPT can be used to generate code snippets which can save time for developers and make their work more efficient It can also assist in natural language processing tasks such as text summarization and sentiment analysis However it s still the developer s responsibility to ensure that the code is correct and efficient and that it meets the needs of the end user In conclusion while ChatGPT and other language models have the ability to assist developers in their work it is unlikely that they will completely replace the role of developers A developer s job involves a wide range of responsibilities and skills that cannot be fully replaced by a language model ChatGPT is a powerful tool but it still requires the expertise and problem solving abilities of a human developer to ensure that software applications are functioning properly and meeting the needs of the end user So don t worry Your Job is secure If you liked reading it please like share and follow You can reach me if you got a complex app development project that may be I am helpful in 2023-01-27 04:39:36
ニュース @日本経済新聞 電子版 「反労組色」の強かったアメリカのIT企業で労働運動が活発に。マイクロソフトは米拠点で初となる組合が傘下企業で結成。経済格差拡大による親労組感情の高まりが背景にあります。 https://t.co/ARjq0Tx6Vn https://t.co/b1R3J1aNBw https://twitter.com/nikkei/statuses/1618832457079394304 2023-01-27 04:45:08
ニュース @日本経済新聞 電子版 日銀、2回目の5年物資金供給を31日に実施 https://t.co/CS3lAPUWDV https://twitter.com/nikkei/statuses/1618829842446979072 資金供給 2023-01-27 04:34:45
ニュース @日本経済新聞 電子版 広域強盗、指示役「ルフィ」 フィリピン法相「拘束中」 https://t.co/ghlquVFsXO https://twitter.com/nikkei/statuses/1618827077897310210 法相 2023-01-27 04:23:46
ニュース BBC News - Home St John's Wood: Firefighters tackle blaze at St Mark's church https://www.bbc.co.uk/news/uk-england-london-64421569?at_medium=RSS&at_campaign=KARANGA local 2023-01-27 04:23:24
ビジネス 東洋経済オンライン 「連合赤軍」当時を知らない30歳の彼が追う理由 最高幹部「森恒夫」を知る人達の取材で見えた事 | 読書 | 東洋経済オンライン https://toyokeizai.net/articles/-/647352?utm_source=rss&utm_medium=http&utm_campaign=link_back 東洋経済オンライン 2023-01-27 13:30:00
ビジネス プレジデントオンライン 幼稚園のお昼寝中、私の下着の中に男児の手が…「子ども同士の性被害」の耳をふさぎたくなる実態 - 上級生や近所のお兄ちゃん、お姉ちゃんが加害者に https://president.jp/articles/-/65790 近所 2023-01-27 14:00:00
マーケティング MarkeZine テレシー、超富裕層向け広告「ヘリコプター広告」に新メニュー追加 ラッピングでSNSでのシェアに期待 http://markezine.jp/article/detail/41134 超富裕層 2023-01-27 13:30:00
IT 週刊アスキー 【ドムドム】カリッもちっとろ~りの不思議な食感のバーガー!「ポテトもちーズバーガー」が限定発売 https://weekly.ascii.jp/elem/000/004/122/4122309/ 期間限定 2023-01-27 13:50:00
IT 週刊アスキー ファミリーマート、群馬県・福井県・京都府のJA女性組織と共同開発したおむすび3種類を地域限定で販売 https://weekly.ascii.jp/elem/000/004/122/4122354/ 共同開発 2023-01-27 13:45:00
IT 週刊アスキー PC『ガンダムネットワーク大戦』で「新兵加入作戦」が開催中! https://weekly.ascii.jp/elem/000/004/122/4122349/ 開始 2023-01-27 13:35:00
IT 週刊アスキー 全国のチーズ好きも満足! さらにチーズの種類を増やしたケンタッキー「チーズにおぼれるフィレバーガー」 https://weekly.ascii.jp/elem/000/004/122/4122351/ 数量限定 2023-01-27 13:30:00
マーケティング AdverTimes 「鬼伝説のまち」京都・福知山市が公募コピーでポスター制作、副田高行氏がAD https://www.advertimes.com/20230127/article409934/ 京都府福知山市 2023-01-27 04:40:54

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