投稿時間:2023-08-08 15:33:03 RSSフィード2023-08-08 15:00 分まとめ(34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	スマートグラス×AI×ドローンを融合した最先端の救助支援システム『3rd-EYE』をロックガレッジが販売開始	https://robotstart.info/2023/08/08/rescue-support-system-3rd-eye.html	スマートグラス×AI×ドローンを融合した最先端の救助支援システム『rdEYE』をロックガレッジが販売開始シェアツイートはてブロックガレッジは、スマートグラスを使った救助支援システム『rdEYE』の販売を開始した。	2023-08-08 05:59:51
IT	ITmedia 総合記事一覧	[ITmedia News] 中国から日本へのサイバー攻撃「機密の漏えい確認していない」　官房長官・防衛大臣が報道にコメント	https://www.itmedia.co.jp/news/articles/2308/08/news130.html	itmedia	2023-08-08 14:47:00
IT	ITmedia 総合記事一覧	[ITmedia News] 中国軍、日本の防衛ネットワークへ侵入していた可能性　米紙報道　2020年に「日本史上最も有害なハッキング」	https://www.itmedia.co.jp/news/articles/2308/08/news129.html	情報共有	2023-08-08 14:36:00
IT	ITmedia 総合記事一覧	[ITmedia News] イーロン・マスク氏のNeuralink、シリーズDで2億8000万ドル調達	https://www.itmedia.co.jp/news/articles/2308/08/news128.html	foundersfund	2023-08-08 14:33:00
IT	ITmedia 総合記事一覧	[ITmedia PC USER] サンワ、肩掛けも可能な容量26Lのビジネスキャリー	https://www.itmedia.co.jp/pcuser/articles/2308/08/news126.html	bagcrbk	2023-08-08 14:18:00
IT	ITmedia 総合記事一覧	[ITmedia News] Slackの“時短テク”　チャンネルの参加メンバーを確認するコマンドは？	https://www.itmedia.co.jp/news/articles/2308/08/news095.html	itmedianewsslack	2023-08-08 14:02:00
TECH	Techable（テッカブル）	大和ハウス工業とNTT Com、ドローンやAIを活用し物流施設の無人点検・管理へ。労働時間の上限規制に対応	https://techable.jp/archives/216039	nttcom	2023-08-08 05:00:28
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	常石グループ、経費精算をデジタル化、スマホ経由で経費申請、領収書郵送を不要に | IT Leaders	https://it.impress.co.jp/articles/-/25206	常石グループ、経費精算をデジタル化、スマホ経由で経費申請、領収書郵送を不要にITLeaders常石グループ各事業会社の持株会社であるツネイシホールディングス本社広島県福山市は、クラウド型の経費精算システム「Spendia」を導入した。	2023-08-08 14:27:00
python	Pythonタグが付けられた新着投稿 - Qiita	Flask-SQLAlchemyについて色々	https://qiita.com/tkr709/items/a95a635035a7e312da61	flasksqlalchemy	2023-08-08 14:57:36
python	Pythonタグが付けられた新着投稿 - Qiita	Djangoのテンプレートでリストをforを使用して1件ずつ表示するとき、N件ごとにタグを入れて分割表示したい	https://qiita.com/76r6qo698/items/2aa2d9e56a61b44cc0d2	divisibleby	2023-08-08 14:28:08
python	Pythonタグが付けられた新着投稿 - Qiita	AWS CDKでDocument DBを作成してみた	https://qiita.com/rm0063vpedc15/items/e124d1ce29cc11178a85	awscdk	2023-08-08 14:18:25
python	Pythonタグが付けられた新着投稿 - Qiita	【amazon connect】pythonを活用したリアルタイムデータ分析ソリューションの構築	https://qiita.com/gk12/items/aeb161dd8ea5c8844d7d	amazon	2023-08-08 14:15:30
js	JavaScriptタグが付けられた新着投稿 - Qiita	BEM（Block, Element, Modifier）命名規則について	https://qiita.com/kakimo0113/items/22152428a605c08cb481	bemblockelementmodifier	2023-08-08 14:57:45
js	JavaScriptタグが付けられた新着投稿 - Qiita	システム開発で出てくる「JSON」ってなに？？「JSON」の概要をまとめました！	https://qiita.com/beyondjapan_24365/items/b59f3813b303bae40bad	言葉	2023-08-08 14:43:35
Ruby	Rubyタグが付けられた新着投稿 - Qiita	【初学者】Dockerに関する基本情報とMySQL接続までの流れ	https://qiita.com/ym0628/items/9a41470993aa6d1f1df0	docke	2023-08-08 14:48:32
AWS	AWSタグが付けられた新着投稿 - Qiita	AWS CDKでDocument DBを作成してみた	https://qiita.com/rm0063vpedc15/items/e124d1ce29cc11178a85	awscdk	2023-08-08 14:18:25
Docker	dockerタグが付けられた新着投稿 - Qiita	【初学者】Dockerに関する基本情報とMySQL接続までの流れ	https://qiita.com/ym0628/items/9a41470993aa6d1f1df0	docke	2023-08-08 14:48:32
Azure	Azureタグが付けられた新着投稿 - Qiita	AZ-900合格体験記	https://qiita.com/2929php/items/3a7a54a9a8a50acde453	azurefundamentals	2023-08-08 14:47:30
Git	Gitタグが付けられた新着投稿 - Qiita	gitを基本からまとめてみた【便利なgitコマンド】	https://qiita.com/kanfutrooper/items/09b10ccdca9c47aed31b	gitcleanf	2023-08-08 14:22:29
Ruby	Railsタグが付けられた新着投稿 - Qiita	【初学者】Dockerに関する基本情報とMySQL接続までの流れ	https://qiita.com/ym0628/items/9a41470993aa6d1f1df0	docke	2023-08-08 14:48:32
海外TECH	DEV Community	Why is it important to write good code?	https://dev.to/mikenjuki/why-is-it-important-to-write-good-code-pke	Why is it important to write good code As developers we spend our waking hours crafting code We write code that solves problems creates features and brings our ideas to life But what is good code And why is it important to write good code Good code is code that is clear concise and easy to understand It is code that is well organized and easy to maintain And it is code that is elegant and beautiful Good code is also more likely to be bug free easier to maintain and more reusable In this blog post we will explore the importance of writing good code We will discuss the key elements of good code and we will provide tips for writing better code So if you are a developer who wants to write better code read on Empathy in CodeEmpathy is an essential skill for any developer who wants to write good code Like a skilled communicator good code begins with empathy for others All developers should understand that coding is not just about solving problems for ourselves it s about creating solutions that others can understand and maintain Some simple ways you can do this is to avoid using clever code that is difficult to understand and provide helpful comments you will also benefit from this When you write code you need to put yourself in the shoes of the next developer who will maintain your code You need to think about how they will understand your code and how they will be able to maintain it This means using clear and concise language writing well organized code and providing helpful comments It also means avoiding clever code that is difficult to understand Clean code always looks like it was written by someone who cares Robert C Martin Orchestrating Best PracticesGood code is like a symphony It is composed of many different parts that work together seamlessly Just as a conductor must coordinate the different instruments in a symphony a developer must coordinate the different parts of their code There are many best practices that can help developers write good code These practices include and are not limited to Using proper naming conventions This means using clear and concise names for variables functions and classes Good naming conventions can make code much easier to understand and maintain Modularizing your code This means breaking your code down into smaller self contained modules Modular code is easier to understand and maintain and it can also be reused in other projects Providing comprehensive comments Comments can help to explain what your code is doing They can also be helpful for debugging and understanding code that you wrote in the past Using linters and other tools There are many tools available that can help you to write better code These tools can help you to find errors enforce coding standards and improve the readability of your code Testing your code thoroughly Embrace testing frameworks for your particular tech stack this will help to ensure that your code is working as expected Getting feedback from others Ask other developers preferably senior to review your code and give you feedback This can help you to identify areas where your code can be improved Keeping your code up to date Programming languages sometimes update their syntax or add more features similarly frameworks and packages you use in your projects may become obsolete when developers stop updating them So always be on the lookout and update your code accordingly Any code of your own that you haven t looked at for six or more months might as well have been written by someone else Eagleson s Law Balancing Complexity and SimplicityMuch like achieving equilibrium in artistic expression balancing complexity and simplicity is an art in itself Developers should embrace elegance in their code finding the right equilibrium between elaborate solutions and straightforward implementations Learn to write code that expresses the problem s essence without unnecessary embellishments Ensuring ResilienceEvery great symphony undergoes rigorous rehearsals before it is performed in front of an audience The musicians practice their parts over and over again making sure that they are in sync and that they can play their parts flawlessly The same is true for code Good code is not written in a single sitting It is written tested and refactored over and over again This process of iterative development ensures that the code is well tested and that it can perform flawlessly even under the most demanding scenarios One of the best ways to ensure that your code is well tested is to practice Test Driven Development TDD TDD is a software development process that involves writing tests before writing the code This ensures that the code is written to pass the tests and it also helps to ensure that the code is well structured and easy to maintain TDD can be a bit challenging to learn at first but it is a valuable skill for any developer By practicing TDD you can write code that is more reliable more maintainable and more enjoyable to work with So next time you are writing code remember the importance of rigorous rehearsals You can see my newsletter here CollaborationCoding is often a collaborative effort When multiple developers work together on a project they can share ideas learn from each other and produce better code One of the most important aspects of collaboration is code reviews Code reviews are a process where one developer reviews the code of another developer This helps to catch bugs improve code quality and ensure that the code is consistent with the project s standards Here are some tips for collaborating on code Be respectful of other developers time and opinions Be clear and concise in your communication Be willing to compromise Be open to feedback By following these tips you can collaborate effectively with other developers and produce better code For example when you are reviewing someone else s code be respectful of their time and opinions If you have any feedback be sure to be clear and concise in your communication And if you are the one whose code is being reviewed be willing to compromise and be open to feedback Leaving an Enduring LegacyA masterpiece s legacy lingers in the hearts of those who experience it just as good code leaves a lasting impact Developers should embrace the understanding that their code will shape future projects and inspire others Every line of code becomes a brushstroke on the canvas of a digital masterpiece an enduring gift to the world of development Writing good code is an art that transcends mere technicality Developers are artists composing codebases that resonate with empathy elegance and ingenuity Let us remember that coding is not just a series of characters and algorithms it s an expression of our creativity and empathy towards others So let us embark on this journey with passion and dedication embracing the art of crafting unforgettable code that stands the test of time As we create our symphonies of code we ensure that the legacy we leave will inspire generations of developers to come	2023-08-08 05:14:19
海外TECH	DEV Community	Node.js asynchronous flow control and event loop	https://dev.to/amplication/nodejs-asynchronous-flow-control-and-event-loop-4aa5	Node js asynchronous flow control and event loopNode js s powerful asynchronous event driven architecture has revolutionized server side development enabling the creation of highly scalable and efficient applications through non blocking I O operations However grasping the inner workings of Node js s asynchronous flow control and event loop can be quite challenging for newcomers and seasoned developers alike In this article we will explore the asynchronous nature of Node js including its core components like the Event Loop Asynchronous APIs and the Node js Call Stack What is asynchronous flow in Node js Asynchronous flow refers to the way Node js handles and executes ensuring that the main program flow remains unblocked As a server side runtime environment built on Chrome s V JavaScript engine Node js efficiently manages concurrent tasks and optimizes resource utilization It achieves this by delegating many operations such as file I O network requests and database queries to separate background threads enabling the main thread to proceed with other tasks Upon completion the results from these background tasks are returned to the main thread often using callbacks promises or async await mechanisms This approach allows Node js to maintain responsiveness and scalability making it a preferred choice for building non blocking high performance applications that can handle multiple concurrent operations effectively At the heart of Node js s asynchronous flow is the event loop a crucial component that plays a vital role in managing and executing tasks efficiently The event loop is responsible for efficiently scheduling and executing asynchronous tasks It constantly monitors the task queue executing pending operations when the main thread becomes idle further enhancing Node js s responsiveness and enabling the seamless handling of concurrent tasks Now let s delve into the specifics of the Node js event loop and understand how it drives the asynchronous flow of Node js Event loop in Node jsThe Event Loop constitutes a vital aspect of Node js enabling it to manage asynchronous operations efficiently It maintains the application s responsiveness by continuously monitoring the Event Queue for pending events Node js s Event Loop follows a straightforward yet highly effective mechanism Event registration Whenever an asynchronous operation is initiated such as reading a file or making a network request the corresponding event is registered and added to the Event Queue Event loop execution The Event Loop perpetually checks the Event Queue for pending events Upon completion of an event it is dequeued and its associated callback is added to the Node js Call Stack for execution Callback execution The callbacks associated with the dequeued events are executed enabling the application to respond to the events Non blocking execution Node js s Asynchronous APIs ensure that while waiting for an operation to complete the application can continue executing other tasks making it highly performant for I O intensive operations Source The above figure depicts an example of a Node js event loop Upon Node js startup the event loop is initialized and the input script is processed This input script might involve asynchronous API calls and the scheduling of timers Node js utilizes a dedicated library module called libuv to handle asynchronous operations This module in conjunction with Node s underlying logic manages a specialized thread pool known as the libuv thread pool The libuv thread pool consists of four threads by default which are responsible for offloading tasks that are too resource intensive for the event loop Such tasks encompass I O operations opening and closing connections and handling setTimeouts When the libuv thread pool completes a task a corresponding callback function is invoked This callback function takes care of any potential errors and performs other necessary operations Subsequently the callback function is added to the event queue As the call stack becomes empty events from the event queue are processed allowing the callbacks to be executed by placing them onto the call stack Node js event loop comprises multiple phases with each phase dedicated to a particular task The below diagram shows a simplified overview of the different phases in the event loop Source As the above diagram depicts there are different phases in the Node js event loop to handle different types of operations Timers Timers phase executes callbacks scheduled by setTimeout and setInterval These callbacks will be triggered as soon as possible after the specified amount of time has elapsed However external factors like Operating System scheduling or the execution of other callbacks may introduce delays in their execution Pending callbacks This phase is dedicated to executing callbacks for specific system operations like handling TCP errors Idle prepare Idle phase is only used internally In this phase the event loop is not actively processing tasks providing an opportunity to perform background operations like garbage collection Poll Two main functions are performed during the poll phase calculating the appropriate duration for blocking and polling I O and processing events in the poll queue When the event loop enters the poll phase without any scheduled timers it checks the poll queue If the queue contains callbacks they are executed synchronously until the queue is empty or reaches a system dependent limit In the absence of callbacks in the poll queue the event loop proceeds to either the check phase if setImmediate scripts are scheduled or waits for new callbacks to be added to the queue executing them immediately Once the poll queue becomes empty the event loop checks if any timers have reached their time thresholds and if so moves back to the timers phase to execute their respective callbacks Check The check phase invokes any setImmediate callbacks that have been added to the queue As the code is executed the event loop will eventually reach the poll phase However if a callback has been scheduled using setImmediate and the poll phase becomes idle the event loop will proceed directly to the check phase instead of waiting for poll events to occur Close callbacks When a socket or handle is closed suddenly the close event is emitted in this phase However if the closure is not immediate the closeevent will be emitted using process nextTick Understanding Call Stack and Asynchronous APIsFor a comprehensive understanding of Node js s asynchronous flow control it is essential to comprehend the Node js Call Stack and its interaction with asynchronous APIs The Call Stack functions as a data structure keeping track of function calls within the program When a function is invoked it is added to the top of the stack and upon completion it is removed following a last in first out LIFO order As shown in the diagram below Node js will initially create a global execution context for the script and place it at the bottom of the stack and then it will create a function execution context for each function called and place it on the stack This execution stack is also known as the Call Stack Source Furthermore as Node js is designed to operate asynchronously it provides many APIs that use callbacks or promises to manage the results of asynchronous operations When an asynchronous function is invoked it is offloaded to the Node js runtime environment allowing the Event Loop to continue processing other tasks Once the asynchronous operation completes the associated callback is placed in the Callback Queue awaiting the Event Loop s attention for execution When the Call Stack is empty the Event Loop picks the first callback from the Callback Queue and pushes it onto the Call Stack for execution This approach ensures that asynchronous tasks do not block the main thread contributing to the application s responsiveness Benefits of Asynchronous Programming in Node jsThe asynchronous nature of Node js brings forth several notable advantages that benefit developers and the applications they build such as Scalability and Concurrency Node js s asynchronous nature allows it to handle a large number of concurrent connections efficiently By leveraging non blocking I O operations and asynchronous event handling Node js can serve multiple clients simultaneously without consuming excessive resources Resource Efficiency Node js utilizes a single threaded event loop to handle multiple concurrent connections reducing the overhead of creating and managing threads for each connection This approach results in better memory utilization and improved resource efficiency Improved Responsiveness Asynchronous operations prevent the application from becoming unresponsive during time consuming tasks leading to enhanced user experiences Simplified Code The asynchronous model allows developers to write clean and concise code avoiding complex control flow and the notorious callback hell Asynchronous APIs along with the adoption of promises and async await promote more readable and maintainable codebases Easier Debugging Asynchronous operations in Node js are designed to provide meaningful error messages making identifying and troubleshooting issues easier Common Pitfalls and How to Avoid ThemWhile the asynchronous nature offers remarkable benefits it also introduces certain challenges that developers should be mindful of Here are some common pitfalls and recommended strategies to overcome them Blocking the event loop Running CPU intensive tasks can cause the event loop becoming blocked to other incoming events or callbacks causing slow application performance reduced concurrency and a negative user experience By utilizing asynchronous APIs and non blocking I O operations enabling tasks to be delegated to the background while the event loop continues processing other events efficiently can maintain a responsive event loop Callback hell Chaining multiple callbacks can lead to deeply nested and hard to read code Adopting promises or async await can significantly improve code readability and maintainability Uncaught exceptions Unhandled errors in asynchronous operations can crash the application Always implement proper error handling mechanisms to gracefully handle exceptions and prevent application failures Memory leaks Improper management of event listeners can result in memory leaks Ensure to remove event listeners when they are no longer needed to prevent unnecessary memory consumption Overuse of asynchronous operations Not all operations need to be asynchronous Carefully choose synchronous and asynchronous operations to strike the right balance between performance and code clarity ConclusionAsynchronous programming is a powerful paradigm that efficiently handles large scale concurrent operations Node js heavily relies on this approach to achieve remarkable concurrency and scalability Its asynchronous nature centered around the Event Loop Asynchronous APIs and the Node js Call Stack enables efficient management of asynchronous operations delivering highly responsive applications By embracing the benefits of asynchronous flow developers can create high performance and scalable applications that respond to events in real time providing users with a seamless and efficient experience However it is crucial to remain mindful of potential pitfalls like blocking the event loop or getting lost in callback hell and to adopt best practices to ensure smooth execution and error handling Overall Node js s asynchronous nature offers a robust foundation for building modern responsive server side applications Node js and AmplicationAmplication can automatically generate fully functional services based on TypeScript and Node js to speed up your development process Furthermore Amplication can include technologies like NestJS Prisma PostgreSQL MySQL MongoDB Passport Jest and Docker in the generated services Hence you can automatically create database connections authentication and authorization features unit tests and ORMs for your Node js service You can find the getting started guide here	2023-08-08 05:06:28
海外TECH	Engadget	Apple Music will help you find new songs and artists with Discovery Station	https://www.engadget.com/apple-music-will-help-you-find-new-songs-and-artists-with-discovery-station-051205049.html?src=rss	Apple Music will help you find new songs and artists with Discovery StationApple has quietly launched a new feature for its music streaming service that could help you expand your playlists and find new artists to listen to It s a personalized radio station called quot Discovery Station quot which picks the songs it thinks you d be into from Apple Music s catalog As Apple Insider notes the tech giant s music service hasn t gone all in on algorithmic recommendations like Spotify which has several playlists that can generate mixes based on your listening habits nbsp An Apple spokesperson told us that Discovery Station will only play music you haven t played on the service before from both familiar artists and potentially unfamiliar ones it thinks you might like And since its main purpose is to help you discover new music it will never play the same song twice and will play continuously until you stop it Like other playlists that use algorithms to recommend tracks Discovery Station also bases its suggestions on your activity and will keep changing as your taste evolves nbsp The feature is now live around the world If you re an existing subscriber you can access it by going to your Listen Now page and checking out the Stations for You section If you don t have a subscription it will cost you at least a month in the US for an audio only plan or at least a month if you want access to Apple Music s video programming and other features such as lossless audio and Dolby Atmos nbsp This article originally appeared on Engadget at	2023-08-08 05:12:05
海外科学	NYT > Science	As Weather Threats Loom, Even Chimps Learn to Shelter in Place	https://www.nytimes.com/2023/08/08/science/extreme-weather-chimpanzees.html	frisbee	2023-08-08 05:34:38
金融	ニッセイ基礎研究所	1998年から続く企業の資金超過－マネーフローに変化は起こるか？	https://www.nli-research.co.jp/topics_detail1/id=75742?site=nli	もうつは、今年来年の設備投資が兆円規模となり、バブル期並みに達するとの予測を示した際に「でも、わが社では、そこまで設備投資を増やしてはいない」との意見が聞かれることである。	2023-08-08 14:05:54
ニュース	BBC News - Home	Mourners to say final goodbyes to Sinéad O'Connor	https://www.bbc.co.uk/news/articles/c3g1yy5yxyvo?at_medium=RSS&at_campaign=KARANGA	private	2023-08-08 05:28:12
ニュース	BBC News - Home	Cost of living: Beyond Meat hit as shoppers shift to cheaper animal protein	https://www.bbc.co.uk/news/business-66435863?at_medium=RSS&at_campaign=KARANGA	protein	2023-08-08 05:30:54
ニュース	BBC News - Home	Operation Seal Bay: How village nosiness uncovered drug ring	https://www.bbc.co.uk/news/uk-wales-66427790?at_medium=RSS&at_campaign=KARANGA	drugs	2023-08-08 05:12:57
ニュース	BBC News - Home	How to stay in the Premier League after promotion	https://www.bbc.co.uk/sport/football/66051348?at_medium=RSS&at_campaign=KARANGA	league	2023-08-08 05:04:50
マーケティング	MarkeZine	ウェルビーイング視点で商品価値を捉えなおす／今改めて考える顧客視点でのマーケティング【参加無料】	http://markezine.jp/article/detail/43077	参加無料	2023-08-08 14:30:00
IT	週刊アスキー	アップル日本法人、40周年ロゴを公開	https://weekly.ascii.jp/elem/000/004/148/4148997/	日本法人	2023-08-08 14:45:00
IT	週刊アスキー	『白猫GOLF』で「シャルロット」の水着ウェアが登場！	https://weekly.ascii.jp/elem/000/004/149/4149018/	内田真礼	2023-08-08 14:45:00
IT	週刊アスキー	Google検索にAI活用「英文法チェッカー」搭載	https://weekly.ascii.jp/elem/000/004/148/4148974/	grammarcheck	2023-08-08 14:30:00
IT	週刊アスキー	手軽に本格的な味を楽しめる！ ホテルニューグランド、冷凍食品シリーズの新商品を発売	https://weekly.ascii.jp/elem/000/004/148/4148992/	冷凍食品	2023-08-08 14:30:00