投稿時間:2023-05-31 00:25:21 RSSフィード2023-05-31 00:00 分まとめ(30件)

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IT	気になる、記になる…	Microsoft、｢Surface Pro X｣のカメラが動作しなくなる問題の一時的な回避策を公開 − 修正アップデートも準備中	https://taisy0.com/2023/05/30/172308.html	microsoft	2023-05-30 14:42:19
AWS	AWS Partner Network (APN) Blog	Rocketlane collaborates with AWS SaaS Factory and AWS Marketplace to power its customer onboarding platform with SaaS	https://aws.amazon.com/blogs/apn/rocketlane-partners-with-aws-saas-factory-and-aws-marketplace-to-power-its-customer-onboarding-platform-with-saas/	Rocketlane collaborates with AWS SaaS Factory and AWS Marketplace to power its customer onboarding platform with SaaSLearn how Rocketlane built their acclaimed customer onboarding SaaS platform because the broad tools and services for builders to quickly innovate get support from programs such as AWS SaaS Factory for business and technical best practices and go to market to reach customers through AWS Marketplace and AWS Activate for startups	2023-05-30 14:42:08
python	Pythonタグが付けられた新着投稿 - Qiita	【Python】回帰分析を始めてみる	https://qiita.com/XPT60/items/55bf87b20fb55bb15a8f	説明	2023-05-30 23:32:22
python	Pythonタグが付けられた新着投稿 - Qiita	Tobii製アイトラッカーで動画再生中の視線追跡（1/n）	https://qiita.com/takahashiMamo/items/a3328a43001be26b8daf	tobii	2023-05-30 23:17:41
js	JavaScriptタグが付けられた新着投稿 - Qiita	【Kintoneのjavascriptカスタマイズで使える】 テーブル要素に格納されたデータを取り出してみた	https://qiita.com/Hogehogeta3/items/e3186cb64427a63fb270	javascript	2023-05-30 23:17:40
js	JavaScriptタグが付けられた新着投稿 - Qiita	AIさかなクンBot 旬魚レシピをギョ提案～ #LINEDC	https://qiita.com/okinakamasayoshi/items/01e0d454caea3a200b8e	linedc	2023-05-30 23:11:07
Ruby	Rubyタグが付けられた新着投稿 - Qiita	初学者メモ　enumとは	https://qiita.com/takayuki91/items/7cf44eb64375ef158d37	enumeration	2023-05-30 23:31:15
Ruby	Rubyタグが付けられた新着投稿 - Qiita	Rails グループ機能の実装②	https://qiita.com/fumiya1800/items/ec114e548a7e043f7752	rails	2023-05-30 23:22:19
Ruby	Rubyタグが付けられた新着投稿 - Qiita	Ruby2.1技術者認定試験 Silver(s.size問題解説)	https://qiita.com/yu-tas/items/b2e4bdb772809e391930	tlanginjectisssizegtissi	2023-05-30 23:21:47
Ruby	Rubyタグが付けられた新着投稿 - Qiita	Ruby2.1技術者認定試験 Silver（sprint問題解説）	https://qiita.com/yu-tas/items/efb952f39b0f92594544	psprintfbq	2023-05-30 23:19:44
AWS	AWSタグが付けられた新着投稿 - Qiita	[AWS Q&A 365][SNS]AWSのよくある問題の毎日5選 #71	https://qiita.com/shinonome_taku/items/340f0a0d2c4ae627ee15	amazonsns	2023-05-30 23:44:42
AWS	AWSタグが付けられた新着投稿 - Qiita	[AWS Q&A 365][SNS]Daily Five Common Questions #71	https://qiita.com/shinonome_taku/items/0d0f4bc49b04da223189	amazon	2023-05-30 23:42:12
Ruby	Railsタグが付けられた新着投稿 - Qiita	初学者メモ　enumとは	https://qiita.com/takayuki91/items/7cf44eb64375ef158d37	enumeration	2023-05-30 23:31:15
Ruby	Railsタグが付けられた新着投稿 - Qiita	Rails グループ機能の実装②	https://qiita.com/fumiya1800/items/ec114e548a7e043f7752	rails	2023-05-30 23:22:19
海外TECH	Ars Technica	The Falcon 9 may double the record for consecutive launch success tonight	https://arstechnica.com/?p=1942757	falcon	2023-05-30 14:06:11
海外TECH	MakeUseOf	How to Perform Common Windows Actions With Shortcuts	https://www.makeuseof.com/windows-common-actions-shortcuts/	power	2023-05-30 14:15:19
海外TECH	MakeUseOf	Ear-Resistible Savings: Tune In to the Best Sony Headphones Deals	https://www.makeuseof.com/best-sony-headphones-deals/	dealssome	2023-05-30 14:05:07
海外TECH	DEV Community	I think I finally “get” JS objects	https://dev.to/tigt/i-think-i-finally-get-js-objects-o6f	I think I finally “get JS objectsWhile learning JavaScript at some point I looked up what “object oriented meant That was a mistake The first reason it was a mistake was because I was exposed to way too many unhelpful OOP diagrams You know the kind This diagram from Wikimedia Commons is typical it models something you d never code in a real program Why is that so common The other reason it was a mistake was because it taught me about Java and C programmers opinions on objects…but those opinions weren t very relevant to the language I was learning I read about “information hiding “encapsulation and “polymorphism but I didn t understand how they were relevant And as it were they mostly weren t relevant Some jargon was for techniques difficult in other languages but so easy in JavaScript that you don t even think about them Some jargon was for how low level languages would optimize performance in ways that JavaScript is too high level to care about Some jargon described techniques that JavaScript objects can t even do And lastly some jargon was for bad ideas ーeven in the originating languages For years I was dimly aware that it didn t seem necessary to mess with prototypes classes constructors and this for like of my code ーso why was I expected to use them for everything or I wasn t doing object orientation “properly It turns out object oriented code is great at some things but not all thingsWhat I ve since realized is that JavaScript reuses its full power Objects for many non OO purposes most of which are much simpler I ve used JS objects for roughly things Grouping variablesNamespacingTyped ish dataActual full power ObjectsThe first aren t “real object orientation or whatever that means but they reuse the object machinery JavaScript already has because it s convenient Grouping variablesSometimes you want to collect related variables together Other languages features for that are called dictionaries hashes maps or structs Perl being Perl has ways to do it with names like “BagHash It s like prefixing variable names that go together var player x var player y var player health or var player x y health Usually the specifics of how exactly to group variables in other languages is for performance reasons For example C s structs group values together to make them efficient byte wise but if you want to look up the properties at runtime by name you ll need a hash function table instead These sorts of grouped variables as objects are also used to return multiple values implement optional arguments in a friendly way and other places where the language doesn t support passing around multiple variables at once As a counterexample Python has optional keyword function arguments and multiple return values so it doesn t use objects for either But in JavaScript we use object and object accessories for both function getCoordinates target relativeTo Using object destructuring for optional arguments let ret x y relativeTo if relativeTo x getHorizontalOffset target relativeTo y getVerticalOffset target relativeTo else x getHorizontalOffset target return ret Returning related variables in the same object NamespacingThere s no technical reason that the Math object exists But there is a human reason it s easy to remember math related stuff lives in this object They could be separate identifiers with math prefixes ーolder languages did that all the time But this seems a little cleaner contrast the myriad functions in PHP s global scope Modern day JavaScript now handles namespacing with module imports and exports but you can still wrap those up into an object the syntax is similar and many old browser APIs and libraries still use objects for namespacing This is also known as static properties methods which kind of sucks as a name and infected JS from other less fun programming languages Go TC about it Typed ish data objectsTyped ish data objects a very rigorous term I just made up bundle data with ways to read and manipulate said data like Date DOMRect or Array Typed ish data objects are when this and methods become useful ーmethods that don t use this somehow are just named functions I think this is the level where instanceof would become useful but JS DOM design mistakes popularized duck typing in the JavaScript world anyway These objects let you change their data in different ways and the different ways to read that data will update to match your changes var d new Date d toDateString Sat Apr d setMonth d toDateString Tue Aug These kinds of objects can use and often do use information hiding internal representations but it s not required For example a Date only stores one UNIX timestamp as an integer and it even lets you look at and change that integer directly if you want And as for TypedArray well it s in the name For example a Color object where the constructor takes any string that CSS can parse as a color then expands it into an object with R G B and A properties This part is left as an exercise to the reader because it s surprisingly hard At first an object shaped like the following R G B A …doesn t seem that much more useful than using hex codes directly in JS like xffbff But by making an actual color Object you can new up we can add useful features such as We could enforce that R G and B never exceed or go lower than It could have tint and shade methods that are easier to understand than manual RGB tinkering The Color object could return the numeric equivalent of its hexadecimal code for its valueOf output a human friendly hsla syntax for its toString or output to an array for data transfer with toJSON Full force capital O internal state Objects also known as ArtFinally you have the full force objects that act as discrete…well objects Like DOM elements Document and so on They use the hell out of this and need to It s possible to model these sorts of things in functional programming but it involves trying to avoid this so hard you end up inventing that HTMLInputElement validity validate though is very good It uses a bunch of properties on one specific user visible object then changes what the element is doing to reflect its calculations And if you call the focus method on one lt input gt it changes the properties of others and the activeElement property of the document that owns them all For an even more complex example consider jQuery objects and their seemingly simple API widget addClass loaded fadeIn on click activateWidget There is a great deal going on under the hood there But because jQuery is doing those object operations under the hood it turns into a wonderful API that has stood the test of time Anyway I m not a good enough programmer to really understand or work on level yet So what My first draft originally tried to tie this all into a lesson for readers but I suspect this post is too confusing for beginners and also too mundane for advanced devs so I m publishing it for me As a treat No I will not explain what I mean	2023-05-30 14:31:53
海外TECH	DEV Community	Exploring React Lazy with Suspense: Code-Splitting Made Easy	https://dev.to/ishanbagchi/exploring-react-lazy-with-suspense-code-splitting-made-easy-4bgh	Exploring React Lazy with Suspense Code Splitting Made EasyIn modern web development performance optimization is crucial to provide a smooth user experience One of the ways to achieve this is by code splitting which allows us to load only the necessary code when it s needed React Lazy with Suspense is a powerful feature that simplifies code splitting in React applications In this blog post we will dive into the world of React Lazy with Suspense explore its benefits and understand how to implement it using code examples What is Code Splitting Code splitting is a technique that involves breaking down a large JavaScript bundle into smaller more manageable chunks By splitting the code we can load only the required portions of the application when they are needed reducing the initial loading time This technique is especially useful for large scale applications with complex components Introducing React Lazy with Suspense React Lazy with Suspense is a combination of two features introduced in React React Lazy allows us to render a dynamic import as a regular component while Suspense handles the fallback UI while the dynamically imported component is being loaded This powerful duo simplifies the process of code splitting and lazy loading in React applications Using React Lazy with Suspense To demonstrate the usage of React Lazy with Suspense let s consider a scenario where we have a large component called ExpensiveComponent that we want to lazy load Step Import the necessary modules import React lazy Suspense from react Step Define the lazy loaded component const ExpensiveComponent lazy gt import ExpensiveComponent Step Wrap the lazy loaded component with Suspense and provide a fallback UI function App return lt div gt lt h gt Welcome to My React App lt h gt lt Suspense fallback lt div gt Loading lt div gt gt lt ExpensiveComponent gt lt Suspense gt lt div gt In the above example when ExpensiveComponent is rendered React will automatically load the component asynchronously While the component is being loaded the fallback UI in this case the Loading text will be displayed Once the component is loaded it will be rendered in place of the fallback UI Benefits of React Lazy with Suspense Improved Performance Code splitting helps reduce the initial bundle size resulting in faster loading times for your application Better User Experience By displaying a fallback UI Suspense ensures that users are aware that content is loading improving the overall experience Simplified Implementation React Lazy with Suspense provides an easy to use API that abstracts away the complexities of lazy loading and code splitting Considerations and Limitations While React Lazy with Suspense is a powerful tool there are a few considerations and limitations to keep in mind Suspense can only be used with React components that are lazy loaded using React Lazy Suspense currently only supports fallback UI at the component level not for specific portions of a component The fallback UI must be a React element or a component It can be as simple as a loading spinner or as complex as a custom component Conclusion React Lazy with Suspense is an excellent addition to the React ecosystem enabling developers to easily implement code splitting and lazy loading in their applications By splitting code into smaller more manageable chunks and displaying fallback UI during loading we can significantly improve performance and enhance the user experience Remember to use React Lazy with Suspense strategically to achieve the best results and deliver high performing React applications	2023-05-30 14:30:33
Apple	AppleInsider - Frontpage News	Deals: MacBook Pro 14 $1,749, Nike Apple Watch SE $149, iPad $269, 12.9" iPad Pro $999 & more	https://appleinsider.com/articles/23/05/30/deals-macbook-pro-14-1749-nike-apple-watch-se-149-ipad-269-129-ipad-pro-999-more?utm_medium=rss	Deals MacBook Pro Nike Apple Watch SE iPad quot iPad Pro amp moreToday s best deals include off a Samsung EVO Plus GB SSD off a ThinkPad X Carbon Gen Intel off an Insignia LED K Smart Fire TV and the M iPad Pro inch discounted to Save on the latest MacBook ProThe AppleInsider crew searches the internet for unbeatable bargains at online retailers to create a list of top notch discounts on trending tech items including discounts on Apple products TVs accessories and other gadgets We share the most valuable deals to help put more money back in your wallet Read more	2023-05-30 14:39:46
Apple	AppleInsider - Frontpage News	Apple recognizes talented student developers in 2023 Swift Student Challenge	https://appleinsider.com/articles/23/05/30/apple-recognizes-talented-student-developers-in-2023-swift-student-challenge?utm_medium=rss	Apple recognizes talented student developers in Swift Student ChallengeThe winners of Apple s Swift Student Challenge have been announced with their projects spanning health sports and science demonstrating their creative use of coding skills to make a positive impact on others and the environment Apple reveals the winners of the Swift Student ChallengeEvery year Apple organizes the Swift Student Challenge as a means to motivate student developers to hone their skills and compete for prizes using Swift Playgrounds Apple s development environment for new coders To be eligible participants must be at least years old enrolled in an academic institution or homeschool equivalent and not employed as full time developers Read more	2023-05-30 14:33:55
Apple	AppleInsider - Frontpage News	How to see Apple's WWDC 2023 AR Easter egg	https://appleinsider.com/articles/23/05/30/how-to-see-apples-wwdc-2023-ar-easter-egg?utm_medium=rss	How to see Apple x s WWDC AR Easter eggApple has updated its Events page in preparation for WWDC complete with an AR easter egg you can check out from an iPhone Apple Events for WWDC and the AR Easter eggAs usual for major presentations Apple has updated its dedicated page for Apple Events to get ready for the WWDC keynote occurring on June Read more	2023-05-30 14:33:16
Apple	AppleInsider - Frontpage News	AI could lead humanity to extinction if not controlled, claims experts	https://appleinsider.com/articles/23/05/30/ai-could-lead-humanity-to-extinction-if-not-controlled-claims-experts?utm_medium=rss	AI could lead humanity to extinction if not controlled claims expertsExperts including the godfather of AI claim artificial intelligence will be as dangerous as pandemics and nuclear war and that it must be strictly controlled I m sorry Dave I won t do that HAL image from Warner Bros The Future of Life Institute previously issued an open letter warning of the dangers of AI signed by over people including Steve Wozniak and Elon Musk That letter concerned what it described as the out of control development of AI systems Read more	2023-05-30 14:27:47
海外科学	NYT > Science	Ispace’s Japanese Moon Lander Crashed Because of Software Glitch	https://www.nytimes.com/2023/05/26/science/moon-crash-japan-ispace.html	Ispace s Japanese Moon Lander Crashed Because of Software GlitchIspace was aiming to become the first private company to land on the surface of the moon but lost contact with its robotic spacecraft in late April	2023-05-30 14:32:21
金融	金融庁ホームページ	証券監督者国際機構（IOSCO）による市中協議文書「暗号資産・デジタル資産に関する勧告案」について掲載しました。	https://www.fsa.go.jp/inter/ios/20230530/20230530.html	iosco	2023-05-30 16:00:00
金融	金融庁ホームページ	店頭デリバティブ取引情報（ 令和４年（2022年）３月末）を公表しました。	https://www.fsa.go.jp/news/r4/shouken/20230530/20230530.html	取引情報	2023-05-30 15:00:00
ニュース	BBC News - Home	Artificial intelligence could lead to extinction, experts warn	https://www.bbc.co.uk/news/uk-65746524?at_medium=RSS&at_campaign=KARANGA	nuclear	2023-05-30 14:40:56
ニュース	BBC News - Home	TV fraud gang jailed for illegally streaming Premier League games	https://www.bbc.co.uk/news/uk-65697595?at_medium=RSS&at_campaign=KARANGA	cheap	2023-05-30 14:51:27
ニュース	BBC News - Home	Train strikes: How drivers' walkout on Wednesday will affect you	https://www.bbc.co.uk/news/business-65723769?at_medium=RSS&at_campaign=KARANGA	conway	2023-05-30 14:05:38
仮想通貨	BITPRESS（ビットプレス）	SBI VCトレード、2023/5/31より「オアシス（OAS）」の取扱開始	https://bitpress.jp/count2/3_10_13629	sbivc	2023-05-30 23:35:19