投稿時間:2023-08-17 09:35:41 RSSフィード2023-08-17 09:00 分まとめ(39件)

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IT	ITmedia 総合記事一覧	[ITmedia エンタープライズ] 1900台超のCitrix NetScalerにバックドアが仕込まれている、日本でも確認	https://www.itmedia.co.jp/enterprise/articles/2308/17/news050.html	citrixnetscaler	2023-08-17 08:30:00
IT	ITmedia 総合記事一覧	[ITmedia ビジネスオンライン] Z世代が憧れるクルマ　3位「アルファード」、2位「レクサス」、1位は？	https://www.itmedia.co.jp/business/articles/2308/17/news039.html	itmedia	2023-08-17 08:30:00
TECH	Techable（テッカブル）	アジェンダ共有、AI文字起こし・要約…。“会議前後のプロセスを一元化する”ミーティングツール	https://techable.jp/archives/217273	文字起こし	2023-08-16 23:00:37
海外TECH	DEV Community	Unveiling the JavaScript Magic: Event Loop, Single Thread, and Beyond	https://dev.to/ibrahzizo360/unveiling-the-javascript-magic-event-loop-single-thread-and-beyond-10pi	Unveiling the JavaScript Magic Event Loop Single Thread and Beyond Introduction Welcome to the fascinating world of JavaScript where a few lines of code can trigger a multitude of actions animations and interactions on the web Have you ever pondered how JavaScript despite being a single threaded language handles complex tasks and maintains a seamless user experience In this article we ll take a deep dive into the core of JavaScript s execution model We ll explore the event loop grasp the concept of single threaded execution and venture into the realm of multi threading Understanding JavaScript s Single ThreadImagine you re at a food stall with just one cook That s a bit like JavaScript it does things one at a time just like that one cook prepares dishes one by one This can be both good and tricky Good because it keeps things simple But tricky because if that cook gets busy you might wait a while for your order We ll see how this affects the speed and smoothness of what you see on your screen JavaScript s single threaded nature means it can only execute one piece of code at a time While this might seem limiting it actually simplifies programming and eliminates the complexities that come with managing multiple threads simultaneously However it also means that if a particular piece of code takes too long to execute it can block other tasks from running leading to potential delays in your application s responsiveness Single Threading Vs Multi ThreadingNow let s talk about a kitchen with multiple cooks That s how multi threading works It s like having several chefs preparing different dishes simultaneously But JavaScript prefers a single threaded approach where one chef thread handles everything While this might seem less efficient JavaScript s single thread is like a master chef who can do many things skillfully even though they do them one at a time Multi threading on the other hand allows tasks to run concurrently which can enhance performance for applications that require heavy processing However managing multiple threads can introduce complexities like synchronization and potential race conditions where threads may interfere with each other s data JavaScript s single threaded design eliminates these challenges offering a trade off between performance and simplicity Exploring Asynchronous TechniquesCooking sometimes involves waiting for water to boil or dough to rise Similarly in programming we often have to wait for things like data from the internet Asynchronous techniques in JavaScript help us make the most of waiting times Imagine telling the cook to start boiling water and then chop vegetables while waiting Similarly we can start one task move to another while waiting and come back when the first is ready JavaScript s asynchronous capabilities are crucial for creating responsive applications It allows tasks to be initiated and continued in the background while the main thread remains available for other tasks This is particularly important for tasks that involve network requests file I O or timers Asynchronous programming is achieved using mechanisms like callbacks promises and async await which enable developers to manage task execution order and handle results effectively The Event Loop JavaScript s ChoreographerThink of JavaScript as a director in a play There are many actors tasks doing their parts at the same time but the director makes sure everything happens in the right order That s the Event Loop it keeps track of what needs to be done and when Whether it s a button click an animation or fetching data from the internet the Event Loop makes sure everything dances in harmony The Event Loop is a fundamental concept that ensures JavaScript s single thread remains responsive It continuously checks the execution stack for tasks to be executed If the stack is empty it checks the task queue for pending asynchronous tasks When a task is complete its callback is pushed onto the stack for execution This ensures that even though JavaScript processes tasks sequentially it can still handle asynchronous tasks efficiently without blocking the main thread Delving Deeper Inside the Event LoopBehind the scenes there s a stack of tasks waiting to be done just like a to do list The Event Loop takes tasks from the top of this stack and sends them to the actors functions that can do them Once an actor finishes a task it s removed from the list and the next task in line gets its turn This way JavaScript keeps doing things without getting overwhelmed The execution stack also known as the call stack is where functions are pushed and popped as they are executed When a function is called it s added to the stack and when it returns a value it s removed Asynchronous tasks like callbacks or timers are placed in the task queue waiting for their turn to enter the call stack This orderly process ensures that JavaScript maintains its single threaded nature while efficiently managing tasks that can occur at different times Adding granularity to your understanding Call Stack Often referred to as the execution stack the call stack is a fundamental concept in programming It functions as a LIFO Last In First Out structure akin to stacking plates As functions are invoked they are stacked one atop the other The function at the top is the one currently being executed When a function completes it is removed from the top allowing the previously invoked function to take the forefront Callback Queue or Execution Queue This is a collection of tasks that are slated for future execution These tasks are typically asynchronous in nature waiting for their moment to shine The tasks within the queue follow a strict first come first served protocol They are inserted into the queue when an asynchronous operation such as a callback or a timer is scheduled Once the call stack is empty tasks from the queue are moved into the call stack for execution Web API Web APIs are browser provided interfaces that empower JavaScript to interact with the browser environment They include functionalities like DOM manipulation AJAX requests and timers When a task requires a significant time to complete such as network requests or animations it is handed over to the appropriate Web API allowing JavaScript to continue its execution without waiting Once the Web API task is completed a corresponding callback function is placed in the task queue ready to be executed in the future Let s try to visualize thingsConsider the following code and output console log one console log two console log three one two threeAs you can see one two and three is being printed out as they appeared in the code in serial order But now consider this piece of code console log one setTimeout gt console log two console log three one three twoWhat led to the output displayed above The setTimeout function was sent to web API which waited there for the specific time period and after that it was sent to the queue for processing Hence the above output These three component call stack event queue and web APIs make a cycle which is known as an event loop I m confident that given the clarity provided in my previous explanations and visual aids unraveling the mystery behind the illustration below should be a relatively straightforward task Event Loop Variations and ImprovementsRemember that cook at the food stall Well what if we had a few more cooks This is where Web Workers come in They re like extra cooks who can help out making things faster Also new tools like async await and Promises allow JavaScript to do tasks more efficiently without waiting around It s like giving the cook some tricks to make dishes quicker Web Workers are a feature that enables parallelism in JavaScript allowing multiple threads to execute tasks concurrently While the main thread remains responsible for UI interactions Web Workers can perform heavy computations offloading the load and enhancing performance Similarly async await and Promises provide a cleaner and more readable way to handle asynchronous tasks reducing the callback nesting commonly seen in traditional asynchronous code Real world ExamplesLet s see all this in action Imagine a game where characters move and scores update in real time The Event Loop ensures that while the game is happening other stuff like loading images or checking your clicks is also taken care of Without the Event Loop the game might freeze or lag In the context of a game the Event Loop ensures that the game logic animations and user interactions occur seamlessly For instance if a game loop is implemented the Event Loop ensures that each iteration of the loop runs smoothly updating character positions handling collisions and responding to user inputs The game s visuals user input and other tasks are orchestrated by the Event Loop to provide a responsive and immersive experience Looking Ahead JavaScript s Evolving LandscapeJavaScript is always evolving just like new ingredients in cooking Programmers are finding ways to make JavaScript even better This means smoother animations faster apps and more responsive websites Keep an eye out for these exciting changes As technology advances JavaScript continues to evolve with new features and optimizations Engine improvements language enhancements and new browser APIs contribute to better performance and user experiences With innovations like WebAssembly which allows running code from other languages at near native speed and the ongoing development of JavaScript engines the future promises even more efficient and capable applications ConclusionSo there you have it JavaScript s Event Loop and Single Thread might sound like a lot but they re the backbone of how things work behind the scenes With this knowledge you re better equipped to understand why things happen the way they do in your favorite websites and apps Keep exploring and soon you ll be waving your own programming magic wand Happy coding Ziz HereKindly Like Share and follow us for more contents related to web development	2023-08-16 23:18:19
海外TECH	DEV Community	Building inclusive UI for Neurodivergent Users	https://dev.to/amera/building-inclusive-ui-for-neurodivergent-users-1kda	Building inclusive UI for Neurodivergent UsersBuilding inclusive UI for Neurodivergent UsersMost commonly people think of users with various hearing or vision abilities when including accessibility features You may even think of elderly user or a temporarily disabled user like someone with a broken arm but let us also remember to be mindful of our cognitive and neurodivergent users as well Sometimes these users may not always be included not purposely but due to lack of awareness I have been guilty of this too My daughter is the whole reason this type of awareness was brought to my attention To give a little insight I have a year old who is autistic and has a sensory processing disorder A few years I open the Starz application on our television and as the logo enlarges on the screen a loud drum noise bellows out I watch my daughter grab her ears and squeeze her eyes tightly closed the run into a corner with the tv out of sight I was so confused I d seen and heard this plenty of times before and it never bothered me I thought maybe she was overreacting Then the same type of issue happened when opening the Netflix application after aloud chime and an array of flashing colors scroll across the screen I look at my daughter and she is in tears eyes closed and tightly covering her ears I wondered what was going on why would this be her reaction What I learned was some people with autism and or sensory processing disorders tend to perceive sensory stimuli differently The sounds that may not influence myself but can be painful and overwhelming to her Also she has a very low tolerance to bright flashing lights She is the reason why I am here After those events occurred I began to wonder how many others are affected by loud or repetitive noises or flashing pulsating animations when use the web I want to encourage you to create for users like her as well as others with various cognitive and neurodivergent abilities ex ADHD Autism and Dyslexia Issues and barriers users with different neurodivergence or cognitive abilities may experience An overload of bright colors this may become overstimulating or even distracting to the web experienceLarge sections of text may make it difficult to understand impair reading comprehension and word recognitionHaving visible timers on screen this can sometime cause anxiety and create unnecessary stressLoud music and or sound effectsFlashing light and lights with pulsing patterns could potentially cause seizures in some casesBlinking images Gifs automatic scrolling sections these could be overstimulating and distractingToo many images or information in one block content crowding cluttered sections crammed with text images videos etc This is known as Visual noise Here are a few practices that you may want to implement Keeping navigation menu placement consistent throughout the website application This creates accessibility for all users and predictability Users need to understand the order of menu items and where the search bar and navigation links are located If possible do not include content that flashes blinks repeatedly or pulsates at a particular rate or pattern If this type of content is necessary add warnings to the users before the content is displayed It would even help to give users a way to switch off the animations if they aren t essential Giving users the ability to use commands like pause and stop on content such as rotating images or slides Also the ability to hide non related articles or content Use of a Screen Mask This is a reading tool that follows the mouse or touch to assist with eliminating page distractions This gives the user the ability to focus one block of information at a time Google Chrome has a screen mask tool induvial can use on their browser Of course all the listed techniques will not be possible to implement on every application The goal is to find a way to ensure that users with neurodivergent conditions can adjust and navigate a website that suit their personal needs Slight changes like font size color contrast and alternative ways to relay information i e video audio could make the difference for a more comfortable web experience We all have unique abilities personalities and ways of communicating It is important for us as developers designers content creators to understand that when we create build design and write with purpose of making our websites and applications accessible first the web experience is enhanced for us all	2023-08-16 23:01:36
海外TECH	Engadget	Scientists are pulling back from Twitter and looking for alternatives	https://www.engadget.com/scientists-are-pulling-back-from-twitter-and-looking-for-alternatives-231159359.html?src=rss	Scientists are pulling back from Twitter and looking for alternativesEarlier this year Pew Research reported that a majority of US Twitter users reported spending less time on the platform since Elon Musk s takeover last year Now new data suggests another important group of users are also pulling back from the service now called X More than half of scientific researchers who use Twitter report they ve reduced the amount of time they spend there or have left altogether according to a survey of thousands of scientists conducted by Nature And nearly half of those polled said they ve turned to alternative social networks like MastodonOf the researchers polled more than percent said they had decreased their usage of the site while nearly percent reported quitting the site altogether Notably almost the same number said they had started an account on at least one new platform over the last year Of these Mastodon which has seen significant growth since Musk s takeover of Twitter was announced was the most widely used About percent of researchers said they had started using the open source platform in the past year LinkedIn and Instagram were the next most popular drawing and percent of researchers respectively Interestingly Meta s Twitter competitor Threads took the number four spot even though the app launched only days before Nature conducted the poll As with the earlier data from Pew Nature s findings suggest that Twitter usage is down among those who were once active on the platform It also highlights how much the dynamics of Twitter have changed over the last year Twitter as Nature points out has historically been an important platform for researchers and scientists It s been used to publicize research and promote scientific debate And Twitter s researchers have served as an important source of authoritative information on a platform that s long struggled to combat misinformation Twitter has also been a valuable source of data for countless researchers studying everything from public health to linguistics But much of that has now changed Many users now feel that their voices are drowned out on a platform that prioritizes content from those with paid verification And the company has made its API for researchers so expensive that most can no longer access it So while not all the researchers that spoke to Nature were ready to give up on Twitter entirely it does seem the company s tactics have alienated large swaths of the scientific community X didn t respond to a request for comment nbsp This article originally appeared on Engadget at	2023-08-16 23:11:59
海外科学	NYT > Science	Appeals Court Upholds Legality of Abortion Pill but With Significant Restrictions	https://www.nytimes.com/2023/08/16/health/abortion-pill-ruling.html	Appeals Court Upholds Legality of Abortion Pill but With Significant RestrictionsThe restrictions which would prevent mifepristone from being mailed to patients and would require in person doctor visits are on hold until the Supreme Court weighs in	2023-08-16 23:19:20
海外科学	NYT > Science	6 Months After the Ohio Train Derailment, Residents Are Still in Crisis	https://www.nytimes.com/2023/08/16/health/east-palestine-ohio-train-derailment-crisis.html	Months After the Ohio Train Derailment Residents Are Still in CrisisThe Albright family left town after a train carrying toxic chemicals derailed near their Ohio home Now they are back facing personal medical and financial crises in a newly divided community	2023-08-16 23:10:00
金融	金融総合：経済レポート一覧	新NISAで増える株式関係書類と電子提供の遅れ	http://www3.keizaireport.com/report.php/RID/548706/?rss	大和総研	2023-08-17 00:00:00
金融	金融総合：経済レポート一覧	FX Daily（8月15日）～米金利の上昇で146円手前まで上昇	http://www3.keizaireport.com/report.php/RID/548710/?rss	fxdaily	2023-08-17 00:00:00
金融	金融総合：経済レポート一覧	ロシア中銀、止まらぬルーブル安に堪らず緊急大幅利上げを決定～ルーブル相場の構造的変化を勘案すれば効果は限定的、中銀の苦悩が一段と広がることは不可避：World Trends	http://www3.keizaireport.com/report.php/RID/548714/?rss	worldtrends	2023-08-17 00:00:00
金融	金融総合：経済レポート一覧	世界経済ウィークリー・アップデート 2023年8月14日 ～新興国の金融政策（中南米で始まった利下げの波は拡大するのか）	http://www3.keizaireport.com/report.php/RID/548718/?rss	世界経済	2023-08-17 00:00:00
金融	金融総合：経済レポート一覧	為替相場展望2023年8月号～ドル円：緩やかなドル安局面へ / ユーロ： ユーロは底堅い展開に	http://www3.keizaireport.com/report.php/RID/548722/?rss	日本総合研究所	2023-08-17 00:00:00
金融	金融総合：経済レポート一覧	KAMIYAMA Seconds!：円安に違和感	http://www3.keizaireport.com/report.php/RID/548726/?rss	kamiyamaseconds	2023-08-17 00:00:00
金融	金融総合：経済レポート一覧	国内企業4-6月期決算の総括と日経平均株価の立ち位置：市川レポート	http://www3.keizaireport.com/report.php/RID/548728/?rss	三井住友	2023-08-17 00:00:00
金融	金融総合：経済レポート一覧	ニュージーランド中銀、金利据え置きに加えて利下げ開始時期を先延ばし～NZドルは米ドルに対して上値が重い展開が続く一方、日本円に対しては底堅い展開が続くか：Asia Trends	http://www3.keizaireport.com/report.php/RID/548733/?rss	asiatrends	2023-08-17 00:00:00
金融	金融総合：経済レポート一覧	最近の信用金庫と銀行の業種別貸出金動向～不動産業向けが増加する一方で対個人サービス業向けは減少：ニュース＆トピックス	http://www3.keizaireport.com/report.php/RID/548738/?rss	不動産業	2023-08-17 00:00:00
金融	金融総合：経済レポート一覧	【第117回】学校・職場等での「金融経済教育」を巡り浮上する課題とその対応 (1) FOR FINANCIAL WELL-BEING 教育内容の充実に必須のマネープラン研究	http://www3.keizaireport.com/report.php/RID/548741/?rss	forfinancialwellbeing	2023-08-17 00:00:00
金融	金融総合：経済レポート一覧	国内スタートアップのデット性資金調達の現状～主にベンチャーデットの広がりと課題について	http://www3.keizaireport.com/report.php/RID/548743/?rss	資金調達	2023-08-17 00:00:00
金融	金融総合：経済レポート一覧	米金融引き締めはどこで目詰まりしているのか？	http://www3.keizaireport.com/report.php/RID/548752/?rss	住友商事	2023-08-17 00:00:00
金融	金融総合：経済レポート一覧	PBR１倍超の会社の「資本コストなどを意識した対応」の内容～資本効率のさらなる改善に向けた取組みの開示が見られる：金融・証券市場・資金調達	http://www3.keizaireport.com/report.php/RID/548761/?rss	大和総研	2023-08-17 00:00:00
金融	金融総合：経済レポート一覧	キャッシュレス・ロードマップ2023 ～キャッシュレスの方が現金よりも環境負荷が低いとの試算結果...	http://www3.keizaireport.com/report.php/RID/548765/?rss	環境負荷	2023-08-17 00:00:00
金融	金融総合：経済レポート一覧	みずほ中国ビジネス・エクスプレス（第674号）～国家金融監督管理総局、『自動車金融会社管理弁法』を改定、出資条件引き上げへ、事業内容の調整も。	http://www3.keizaireport.com/report.php/RID/548768/?rss	中国ビジネス	2023-08-17 00:00:00
金融	金融総合：経済レポート一覧	ニュージーランド：金融政策（23年8月）～市場予想通りの据え置きなるも、中銀見通しは幾分タカ派スタンスに改定へ	http://www3.keizaireport.com/report.php/RID/548769/?rss	市場予想	2023-08-17 00:00:00
金融	金融総合：経済レポート一覧	民事信託を利用した資産活用の課題と展望～有価証券保有者の意思能力喪失リスクへの対応策	http://www3.keizaireport.com/report.php/RID/548777/?rss	意思能力	2023-08-17 00:00:00
金融	金融総合：経済レポート一覧	オーバービュー：ネイチャーポジティブ～生物多様性の回復	http://www3.keizaireport.com/report.php/RID/548778/?rss	生物多様性	2023-08-17 00:00:00
金融	金融総合：経済レポート一覧	【マーケットを語らず Vol.121】リスク・パリティで考えるポートフォリオの資産保有比率と目先の変動性	http://www3.keizaireport.com/report.php/RID/548779/?rss	資産	2023-08-17 00:00:00
金融	金融総合：経済レポート一覧	ユーロ相場見通し：ユーロ/ドル、弱気への反転が始まった？	http://www3.keizaireport.com/report.php/RID/548787/?rss	dailyfx	2023-08-17 00:00:00
金融	金融総合：経済レポート一覧	【注目検索キーワード】構造的賃上げ	http://search.keizaireport.com/search.php/-/keyword=構造的賃上げ/?rss	検索キーワード	2023-08-17 00:00:00
金融	金融総合：経済レポート一覧	【お薦め書籍】1300万件のクチコミでわかった超優良企業	https://www.amazon.co.jp/exec/obidos/ASIN/4492534628/keizaireport-22/	転職	2023-08-17 00:00:00
ニュース	BBC News - Home	Students wait for A-level, T-level and BTec results	https://www.bbc.co.uk/news/education-66473620?at_medium=RSS&at_campaign=KARANGA	grades	2023-08-16 23:06:21
ニュース	BBC News - Home	More than 60 migrants feared dead at sea off Cape Verde coast	https://www.bbc.co.uk/news/world-africa-66528273?at_medium=RSS&at_campaign=KARANGA	coast	2023-08-16 23:21:35
ニュース	BBC News - Home	Bradley Cooper: Leonard Bernstein's family defend actor over Maestro nose row	https://www.bbc.co.uk/news/entertainment-arts-66526446?at_medium=RSS&at_campaign=KARANGA	jewish	2023-08-16 23:10:35
ニュース	BBC News - Home	World Athletics Championships: How a teenage Dina Asher-Smith and her relay team-mates started a medal-winning era in Moscow	https://www.bbc.co.uk/sport/athletics/66477976?at_medium=RSS&at_campaign=KARANGA	World Athletics Championships How a teenage Dina Asher Smith and her relay team mates started a medal winning era in MoscowThe teenager The prospect The bolter The late substitute At Moscow an unfunded unlikely quartet ended a year wait for a British female sprint medal at a major championships	2023-08-16 23:01:58
ビジネス	ダイヤモンド・オンライン - 新着記事	世界経済を振り回す異常気象、途上国は大打撃 - WSJ発	https://diamond.jp/articles/-/327753	世界経済	2023-08-17 08:26:00
GCP	Google Cloud Platform Japan 公式ブログ	BigQuery で JSON データを操作する際に利用できる新しい SQL 関数のご紹介	https://cloud.google.com/blog/ja/products/data-analytics/announcing-new-sql-functions-for-json-in-bigquery/	これらのSQL関数では、コアであるJSONサポートの機能と柔軟性が拡張されており、JSONデータの抽出と作成、そして複雑なデータ分析を実施することがさらに簡単になります。	2023-08-17 01:00:00
ビジネス	東洋経済オンライン	｢文系学生は門前払い｣就活に苦しむ院生の嘆き 研究時間減少､企業の理解の少なさ等の問題も | 理想と現実 大学院生の苦悩 | 東洋経済オンライン	https://toyokeizai.net/articles/-/694470?utm_source=rss&utm_medium=http&utm_campaign=link_back	大学院生	2023-08-17 08:30:00
マーケティング	AdverTimes	エクストリーム就職相談　〜世界で活躍する⽇本⼈クリエイティブに聞け！〜	https://www.advertimes.com/20230817/article430072/	相談	2023-08-17 00:00:21
GCP	Cloud Blog JA	BigQuery で JSON データを操作する際に利用できる新しい SQL 関数のご紹介	https://cloud.google.com/blog/ja/products/data-analytics/announcing-new-sql-functions-for-json-in-bigquery/	これらのSQL関数では、コアであるJSONサポートの機能と柔軟性が拡張されており、JSONデータの抽出と作成、そして複雑なデータ分析を実施することがさらに簡単になります。	2023-08-17 01:00:00