投稿時間:2023-07-21 07:17:27 RSSフィード2023-07-21 07:00 分まとめ(19件)

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IT	ITmedia 総合記事一覧	[ITmedia ビジネスオンライン] 巨大な店舗で「ダラダラ仕事」　それでも米国小売業が成長できるワケ	https://www.itmedia.co.jp/business/articles/2307/20/news033.html	itmedia	2023-07-21 06:30:00
AWS	AWS Compute Blog	Implementing patterns that exit early out of a parallel state in AWS Step Functions	https://aws.amazon.com/blogs/compute/implementing-patterns-that-exit-early-out-of-a-parallel-state-in-aws-step-functions/	Implementing patterns that exit early out of a parallel state in AWS Step FunctionsThis post is written by Madhav Vishnubhatta Senior Technical Account Manager Enterprise Support This blog post explains how to implement patterns in AWS Step Functions that control the break out of a parallel state as soon as a minimum requirement is met The parallel state usually completes only when all the parallel flows inside it …	2023-07-20 21:51:31
海外TECH	Ars Technica	“Church of Bleach” family guilty on all counts, plans to appeal	https://arstechnica.com/?p=1955632	appealthe	2023-07-20 21:59:21
海外TECH	Ars Technica	DART asteroid impact created a 10,000-kilometer debris field of boulders	https://arstechnica.com/?p=1955603	large	2023-07-20 21:37:30
海外TECH	Ars Technica	Musk subpoenas Elizabeth Warren days after she called for Tesla investigation	https://arstechnica.com/?p=1955598	tesla	2023-07-20 21:05:24
海外TECH	MakeUseOf	How to Check the Word Count in Google Slides	https://www.makeuseof.com/check-word-count-google-slides/	slides	2023-07-20 21:16:21
海外TECH	MakeUseOf	The Best 4K Monitors	https://www.makeuseof.com/best-4k-monitors/	enhance	2023-07-20 21:16:21
海外TECH	DEV Community	Understanding useCallback() vs. useMemo() in React.js 🚀	https://dev.to/kshaikreshma/understanding-usecallback-vs-usememo-in-reactjs-5bc7	Understanding useCallback vs useMemo in React js Hello Dev community Today I m excited to share my post focusing on two essential React hooks useCallback and useMemo These hooks play a crucial role in optimizing React applications by memoizing functions and values Let s dive in and explore the differences and use cases for each of them useCallback The Function MemoizerWhen working with React you might come across scenarios where a component receives a function as a prop Every time the component re renders the function is created again even if its dependencies have not changed This can lead to unnecessary re renders of child components This is where useCallback comes to the rescue useCallback memoizes the function so that it is not recreated on each render but only when its dependencies change This can help in preventing unwanted re renders and improving performance Here s how you can use useCallback useMemo The Value MemoizerOn other occasions you might have expensive computations or complex operations that are repeatedly called within a component Using useMemo can save the day Similar to useCallback useMemo memoizes the result of the computation and returns the memoized value on subsequent renders as long as its dependencies remain unchanged This can be particularly helpful in optimizing performance when dealing with computationally intensive tasks Here s how you use useMemo So When to Use Which Use useCallback when you need to memoize a function to prevent unnecessary re creation especially when passing the function as a prop to child components Use useMemo when you want to memoize the result of an expensive computation or data manipulation to avoid redundant calculations A Word of Caution While useCallback and useMemo can improve performance excessive or improper use of memoization can lead to unnecessary complexity Be mindful of their application especially in small components where the overhead of memoization might outweigh its benefits Conclusion In conclusion understanding the differences between useCallback and useMemo is essential in optimizing your React applications By utilizing these hooks wisely you can efficiently manage functions and computations resulting in smoother and more performant user interfaces I hope this article has shed some light on these two useful React hooks Happy coding and feel free to share your thoughts and experiences with useCallback and useMemo in the comments below Thank you for reading my first post on Dev to If you found it helpful consider giving it a thumbs up and follow me for more React js insights	2023-07-20 21:18:27
Apple	AppleInsider - Frontpage News	Apple's AirTag helps a magician find his lost bag at Newark airport	https://appleinsider.com/articles/23/07/20/apples-airtag-helps-a-magician-find-his-lost-bag-at-newark-airport?utm_medium=rss	Apple x s AirTag helps a magician find his lost bag at Newark airportApple s AirTag item tracker has come in handy for a lot of people since the accessory launched and now it s even helped a magician find his missing bag at an airport Apple AirTagSome AirTag owners who have had their belongings stolen have used the item tracker to actually get those things back And the good news here is the magician was able to get their bag back too Read more	2023-07-20 21:46:44
海外TECH	Engadget	‘Borderlands’ movie is set to be released next August	https://www.engadget.com/borderlands-movie-is-set-to-be-released-next-august-210515223.html?src=rss	Borderlands movie is set to be released next AugustThe Borderlands movie is finally getting a release date According to a tweet from the game s official Twitter account it will premiere in theaters on August th The film directed by Eli Roth best known for Hostel is based on the popular video game of the same name Borderlands follows Lilith Cate Blanchett a treasure hunter who returns to her home planet of Pandora unrelated to the Avatar movie She teams up with Roland Kevin Hart Tiny Tina Arian Greenblatt Krieg Florian Munteanu Tannis Jamie Lee Curtis and Claptrap Jack Black to find the missing daughter of Atlas A first look was released last year though there s no official trailer yet It s peculiar that they ve decided to announce the release date for the movie more than a year out What makes it even more odd is that the movie had reportedly wrapped up filming over two years ago in June Delays for video game based movies seem to be increasingly common The Uncharted movie was delayed several months from its original release date And when it did release the film saw mixed reviews including from Engadget s Devindra Hardawar who said the Uncharted movie quot boldly goes nowhere quot The Super Mario Bros Movie also saw delays in the film s release However that movie set box office records for a video game movie Barring any further delays fans should expect to see Borderlands in theaters next year This article originally appeared on Engadget at	2023-07-20 21:05:15
海外科学	NYT > Science	Tornado Rips Through North Carolina Pfizer Site, Damaging Drug Supplies	https://www.nytimes.com/2023/07/20/health/tornado-pfizer-drug-shortage.html	Tornado Rips Through North Carolina Pfizer Site Damaging Drug SuppliesExtensive damage occurred at the company s property in Rocky Mount and many products used by hospitals appeared to have been affected This could further exacerbate shortages	2023-07-20 21:14:28
海外科学	NYT > Science	She’s on a Mission From God: Suing Big Oil for Climate Damages	https://www.nytimes.com/2023/07/19/climate/climate-lawsuit-puerto-rico.html	She s on a Mission From God Suing Big Oil for Climate DamagesA lawyer started small with a creative tactic It grew into an effort that could force fossil fuel companies to pay hundreds of billions in damages	2023-07-20 21:29:04
金融	ニュース - 保険市場TIMES	住友生命、「プラチナくるみんプラス」を取得	https://www.hokende.com/news/blog/entry/2023/07/21/070000	このくるみん認定を既にうけ、かつ高い水準で取り組みを行っている企業を評価するのが「プラチナくるみん」の認定である。	2023-07-21 07:00:00
ニュース	BBC News - Home	Nigel Farage gets apology from banking boss in Coutts row	https://www.bbc.co.uk/news/business-66258137?at_medium=RSS&at_campaign=KARANGA	coutts	2023-07-20 21:14:36
ニュース	BBC News - Home	Top degrees fall for the first time in a decade	https://www.bbc.co.uk/news/education-66259391?at_medium=RSS&at_campaign=KARANGA	england	2023-07-20 21:16:49
ニュース	BBC News - Home	Berlin search for suspected lioness continues as night falls	https://www.bbc.co.uk/news/world-europe-66254908?at_medium=RSS&at_campaign=KARANGA	outskirts	2023-07-20 21:38:09
ビジネス	ダイヤモンド・オンライン - 新着記事	中国系ハッカー、米国大使も標的に - WSJ発	https://diamond.jp/articles/-/326515	米国大使	2023-07-21 06:22:00
ビジネス	東洋経済オンライン	原油価格は中国経済が不調でも上昇の懸念がある OPECプラス減産に加え他の要因も価格を下支え | 市場観測 | 東洋経済オンライン	https://toyokeizai.net/articles/-/688470?utm_source=rss&utm_medium=http&utm_campaign=link_back	中国経済	2023-07-21 06:30:00
ビジネス	東洋経済オンライン	トランプ氏は2024年､米大統領に返り咲くのか 共和党予備選は有力対抗馬が伸びず逃げ切りも | アメリカ | 東洋経済オンライン	https://toyokeizai.net/articles/-/686152?utm_source=rss&utm_medium=http&utm_campaign=link_back	大統領選	2023-07-21 06:20:00