投稿時間:2021-09-08 01:30:32 RSSフィード2021-09-08 01:00 分まとめ(35件)

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python	Pythonタグが付けられた新着投稿 - Qiita	競プロ典型90問　001 - Yokan Party	https://qiita.com/nk19963/items/0e8d2662d6811c269e3e	二分探索法は考え方自体は知っていて、例の数字を探す時のように単体で使ったこともありましたが、実際に他の考え方と組み合わせて使うのが初めてだったため、かなり手間取ってしまいました。	2021-09-08 00:39:41
js	JavaScriptタグが付けられた新着投稿 - Qiita	[Ajax]フォロー機能を非同期にした	https://qiita.com/mkato1013/items/25f2a5abcd201a6a4072	ちなみに、クラス名をclassmypagefollowcontentsltuseridgtにしないと、誰をフォローするのかわからないままですので、エラーが出続けることになります。	2021-09-08 00:23:20
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	Ardunioの割り込み処理による作業をリセットするプログラムを作りたいです。	https://teratail.com/questions/358275?rss=all	Ardunioの割り込み処理による作業をリセットするプログラムを作りたいです。	2021-09-08 00:51:04
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	unityで制作したアプリをvisual studioで実行出来ない	https://teratail.com/questions/358274?rss=all	unityで制作したアプリをvisualstudioで実行出来ない〈実現したいこと〉visualnbspstudioにてスローされた例外をどのように対応すればいいのか教えて頂きたいです。	2021-09-08 00:39:48
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	VBA 13桁の数字を正常に表示させたい	https://teratail.com/questions/358273?rss=all	VBA桁の数字を正常に表示させたいvbaで桁の数字をセルへ出力すると、桁が変わってしまいます。	2021-09-08 00:34:31
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	re.sub()で'$'の削除ができません	https://teratail.com/questions/358272?rss=all	resubでxxの削除ができません前提・実現したいことVADERを利用してビットコイン関連のツイートを感情分析をするために、CSVから読み込んだ万件のテキストの前処理をしている段階です。	2021-09-08 00:29:15
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	シェーダーの単純な画面塗りつぶしの速度が遅い	https://teratail.com/questions/358271?rss=all		2021-09-08 00:19:02
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	Flexboxのカラムについて、綺麗に改行されません。	https://teratail.com/questions/358270?rss=all	Flexboxのカラムについて、綺麗に改行されません。	2021-09-08 00:13:35
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	unityで制作したアプリをvisual studioで実行出来ない	https://teratail.com/questions/358269?rss=all	unityで制作したアプリをvisualstudioで実行出来ない前提・実現したいことここに質問の内容を詳しく書いてください。	2021-09-08 00:12:59
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	formタグのactionに指定した場所に入力した情報が反映されません。	https://teratail.com/questions/358268?rss=all	formタグのactionに指定した場所に入力した情報が反映されません。	2021-09-08 00:07:49
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	before_actionについて	https://teratail.com/questions/358267?rss=all	beforeactionについて前提・実現したいことRailsでログイン状態でないとアクセスできないページを作っています。	2021-09-08 00:01:07
Ruby	Rubyタグが付けられた新着投稿 - Qiita	[Ajax]フォロー機能を非同期にした	https://qiita.com/mkato1013/items/25f2a5abcd201a6a4072	ちなみに、クラス名をclassmypagefollowcontentsltuseridgtにしないと、誰をフォローするのかわからないままですので、エラーが出続けることになります。	2021-09-08 00:23:20
AWS	AWSタグが付けられた新着投稿 - Qiita	AWS Certified Cloud Practitionerを受けようと思った人へ	https://qiita.com/nishi1194/items/5b8565851a521e127063	AWSCertifiedCloudPractitionerを受けようと思った人へなぜ書くのか自分がこの試験に興味を持った時に、「勉強法から受験方法までを流し読みできる記事」があればいいと思ったから特に受験方法オンライン試験の時間帯や当日のやり取りはあまり情報がなくて不安だったから→「受験してみての感想」を参照なぜ受けたのか仕事でAWS使いそうだけど、知識がまったくなかったからAWSサービス名となんとなくの役割を理解して、会議やドキュメントを理解できるようになるためDjangoの勉強してたらクラウドでサーバー立ててみたくなったから筆者について社会人年目メーカーでソフトウェア開発担当クラウド開発経験ゼロ勉強方法作戦初級の試験かつ選択式の問題ということで、とにかく過去問の数をこなす方針を立てました。	2021-09-08 00:29:29
Ruby	Railsタグが付けられた新着投稿 - Qiita	railsチュートリアル7章進めたときの覚書	https://qiita.com/shuman1231/items/59d0ece3762b77771572	TLSローカルのサーバーからネットワークに流れる前に、大事な情報を暗号化する技術方法productionrbに一行修正を加える具体的には、configに「本番環境ではSSLを使うようにする」という設定をするconfigenvironmentsproductionrbconfigforcessltrue一行追加次に、遠隔にあるサーバーのSSLをセットアップする。	2021-09-08 00:41:52
Ruby	Railsタグが付けられた新着投稿 - Qiita	[Ajax]フォロー機能を非同期にした	https://qiita.com/mkato1013/items/25f2a5abcd201a6a4072	ちなみに、クラス名をclassmypagefollowcontentsltuseridgtにしないと、誰をフォローするのかわからないままですので、エラーが出続けることになります。	2021-09-08 00:23:20
海外TECH	DEV Community	Build an App Using HarperDB's New Custom Functions 🚀	https://dev.to/margo_hdb/build-an-app-using-harperdb-s-new-custom-functions-289g	Build an App Using HarperDB x s New Custom Functions Don t miss this opportunity to see HarperDB in action Join HarperDB s VP of Product Jaxon Repp at this livestream next week to code along and build your own app while utilizing new and super exciting functionality with the HarperDB release Jaxon will build out an API and UI that utilizes HarperDB and our new Custom Functions which enable developers to code their own custom functions utilizing core HarperDB methods to define a custom API endpoint resulting in a simplified tech stack and improved performance Custom Functions are written in Node js and the UI will be in React When September th PM MT we ll send a recording of the event to all RSVP s if you can t attend live Where Virtual Join from anywhere All are welcome free virtual event RSVP here This event is for developers and tech leaders of any skill level and will help you strengthen your app development skills as well as general database data management knowledge More on HarperDB Custom Functions Add your own API endpoints to a standalone API server inside HarperDBUse HarperDB Core methods to interact with your data at lightning speedCustom Functions are powered by Fastify so they re extremely flexibleManage in HarperDB Studio or use your own IDE and Version Management SystemDistribute your Custom Functions to all your HarperDB instances with a single click Meet Jaxon Repp VP of Product at HarperDBJaxon has years of experience architecting designing and developing enterprise software He has served as founder of three technology startups run Technology Product and Solution Architecture at several others and consulted with multiple Fortune companies on IoT and Digital Transformation initiatives A partially reformed developer he understands what it s like to wrestle with technology instead of benefiting from it and believes passionately that if the Jetsons never had an episode where a config file error brought down the food o matic it surely should not be a problem now RSVP here to code along with Jaxon next week	2021-09-07 15:41:54
海外TECH	DEV Community	Functions, fat arrows and parentheses	https://dev.to/laurieontech/functions-fat-arrows-and-parentheses-585o	Functions fat arrows and parenthesesIf you develop with JavaScript you likely use functions fairly often And because you re a developer you ve likely made some mistakes For me it was last week I called a function without parentheses and it didn t exactly do what I wanted But why Why was that a mistake In React there are lots of times we use functions without parentheses and everything works just fine Today we re going to talk about why How do parantheses impact functionsLet s start with a typical function const someString gt return some string If we wanted to call this function we d do so like this const result someString result is now some string But what happens if we do this const result someStringresult is now equal to Function someString It s a reference to the function rather than the result of evaluating the function Well that was a quick post Always use parentheses problem solved Not so fast React and functionsSometimes in React we want to execute a function But other times we want to pass around a reference const ExampleComponent gt const clickHandler gt console log I was clicked return lt button onClick clickHandler gt Click me lt button gt onClick is an event handler which takes a function as a callback So it needs a reference to the function it s going to call What happens if we add parantheses Will it still work const ExampleComponent gt const clickHandler gt console log I was clicked return lt button onClick clickHandler gt Click me lt button gt Nope Nothing will get logged The event handler was expecting a function that it can call However it got I was clicked instead Not exactly helpful Any other syntax weirdness we should talk about Sure why not ParametersBy default event is passed as an argument to the callback function Something like this const ExampleComponent gt const clickHandler event gt event preventDefault console log I was clicked return lt button onClick clickHandler gt Click me lt button gt This actually introduces an interesting detail The code above is equivalent to the code below passing our function wrapped in an anonymous function that exposes event const ExampleComponent gt const clickHandler event gt event preventDefault console log I was clicked return lt button onClick event gt clickHandler event gt Click me lt button gt Anonymous functionsAs it turns out we can define our function inline const ExampleComponent gt lt button onClick gt console log I was clicked gt Click me lt button gt This also gives us the opportunity to pass our own parameters const ExampleComponent gt const clickHandler message gt console log message return lt button onClick gt clickHandler I was clicked gt Click me lt button gt But what if we want the event object in addition to our other parameter s const ExampleComponent gt const clickHandler message gt event gt event preventDefault console log message return lt button onClick clickHandler I was clicked gt Click me lt button gt This makes sense if we think about what we already know That event is always passed whether we reference it or not I m a little confusedIf that last example confused you that s ok It looks a lot like our earlier example where we passed the result of a function rather than a reference to it The trick is to look at the definition of clickHandler a little bit closer We ll make it a bit more verbose to make that easier const clickHandler message gt return event gt event preventDefault console log message The result of clickHandler is a function It returns a reference to a function So we re all good Functions are funI know that was a lot of syntax but I hope you feel a bit more confident Knowing what is happening under the hood can turn guess and check errors into intentional fixes You ll still make mistakes we all do but maybe you ll catch them faster	2021-09-07 15:25:03
海外TECH	DEV Community	How to learn React - The Effective way	https://dev.to/shaan_alam/how-to-learn-react-the-effective-way-2km7	How to learn React The Effective way What is React React is a free and Open Source Front End JavaScript Library for building complex User Interfaces by dividing your application into smaller components It is maintained by Facebook and a community of Developers Pre requisites for learning ReactBefore learning React or trying to learn React I would say to familiarize yourself with HTML CSS amp JavaScript You can learn HTML and CSS within weeks as they are used for creating layouts for your web application JavaScript takes some time to lean as it is a programming language Spend at least a month or two learning JavaScript Don t just learn and learn but also create small projects to implement the knowledge that you have gained You can create some mini projects like To Do Lists Calculator Random Jokes Generator etc JavaScriptWhile learning JavaScript you have to avoid some mistakes that I made When I was learning JavaScript I thought that I have to become a absolute master of JavaScript to write React code which is non sense I started learning advanced concepts as a beginner failing which I thought I am not good enough But let me tell you as a beginner you need to learn just enough so that you can create basic projects in vanilla JavaScript Some topic to learn and understand deeply are Variablesif else conditions and switch statementsDifference between var let amp constFunctionsArraysArray methods like filter map reduce etc PromisesCallbacksAsync awaitClasses and OOPs ConceptsWorking with APIsAgain don t just learn APPLY ReactAt this point of time when you have learned JavaScript essentials it is time for you to dive into React You can start learning React by taking a look at React Official Docs or by taking their React Official Tutorial to get some idea of how React works React Docs are very well written covering the fundamentals of React Learn these topics very well to understand React fundamentally JSXComponents Functional and Class based Lifecycle MethodsStatePropsHandling eventsFormsConditional RenderingWorking with third party APIs Once you have gained understanding of these topics it is time for you to create projects in order to implement them You can create new projects or the remake the ones you made while learning vanilla JavaScript using React React RouterLearn about React router React router is a routing library for react which will help you to navigate through different pages in your React App Learn about loading specific page s content passing params in the URL redirecting etc Also understand that react router is not a part of React it s a routing library made for React Advanced ReactNow that you have basic React knowledge and also created some basic projects it is time to learn some advanced concepts like Hooks Context etc Take a look at React Docs and learn these concepts ContextHooksError BoundariesHigher Order ComponentsCode SplittingRefsForwarding RefsRender props Some extra stuff You can also learn some extra libraries like Material UI reactstrap tailwindcss Semantic UI etc once you have learned the basics of React These libraries will help you in your day to day React Dev life However it is not compulsory to learn everything you can try and learn them once you are done with React basics and can make projects Congratulations You are a React Developer Now you just have to hone you skills by creating projects and visiting React Docs often and learning new things Some resources to learn React React JS Crash Course by Traversy MediaFull React Course Learn Fundamentals Hooks Context API React Router Custom Hooks By FreeCodeCampFull Modern React Playlist by The Net Ninja Some useful tipsDon t try to learn everything at once understand and accept the fact that you a beginner and spend enough amount of time to learn these concepts Don t be afraid of writing bad code Like I mentioned earlier you are a beginner at some point everyone is Understand that Progress gt gt gt gt PerfectionAvoid Tutorial Hell Tutorial Hell refers to the term when you follow a tutorial after tutorial and you think you are learning when in fact you learn nothing If you watching Youtube tutorials don t just watch video after video Realize that you are stuck in Tutorial Hell and stop watching more videos and start creating your own projects Make Google StackOverflow articles amp blogs your best friend Start googling your questions there is a high probability that your problem error has already been solved by someone else on the internet Find me here Github shaan alamTwitter shaancodesInstagram shaancodesLinkedIn Shaan Alam	2021-09-07 15:11:59
海外TECH	DEV Community	The confusion around your API	https://dev.to/typeable/the-confusion-around-your-api-1bhd	The confusion around your APIAuthor Ilya Kostyuchenko How to prevent your APIs from scattering In this post I d like to tell you what OpenAPI is and why you may need it ​ Your Pokemons​Your status quo you ve got two developers One is developing the backend of your product the other is working on the frontend You ve got an idea for a new supercool application and you want to develop it as soon as possible so you call an experienced architect to design well in advance the ideal API for which the frontend and the backend can be developed simultaneously ​The architect develops the ideal API describes it in one big document and issues it to the developers ​Each of the developers takes the API description reads it carefully and implements the described API ​ Measure thrice and cut once​In the long run we d like to get the frontend and the backend each of which will deal with the same requests the frontend will send and the backend will process them Ideally these requestыshould also comply with what the architect has described although it s not so important ​Now let s see what must happen to make the frontend and the backend requests coincide The backend developer hasn t made any mistakes while implementing the APIThe backend developer has read the architect s API description correctlyThe frontend developer hasn t made any mistakes while implementing the APIThe frontend developer has read the architect s API description correctlyIf anyone makes a mistake even in one of the items your entire project will fail And that s assuming that the architect doesn t make any errors spoiler they all do It should be specially noted that heavy responsibility falls on human understanding and human communication of all technical details The human understanding is generally rather hard to debug and test ​ People are a weak link in the chain​Given the situation the desire to minimize the human factor in the API development seems quite natural You d like to exclude the human factor from the moment when the architect described API in the document As a matter of fact it would be great to avoid the architect s errors too but the technologies haven t advanced thus far yet Obviously to make this possible the architect should deliver not a human readable document but a computer readable document i e some sort of formal specification for a specific API If we have such API description we can at least try to allot the subsequent tasks to automation For each programming language there are usually not so many ways to make a “canonical implementation of any HTTP API when using a specific framework Frameworks usually don t have so many ways to make a request with a JSON object in the body nor so many ways to read an integer in the request path ​ OpenAPI​It would be great to be able to describe your HTTP API once and get coinciding frameworks from this description to develop the backend and the frontend which considering that there is no human factor in the chain will more likely coincide Provided that the frameworks have been generated without errors which is in fact a simpler task And behold This has been invented already This is OpenAPI OpenAPI allows describing HTTP API formally as YAML files A rather extensive example can be found on editor swagger io There you can simultaneously view the source YAML and the human readable HTML page If the architect describes the original specification in the form of an OpenAPI specification the interaction between the backend and the frontend can be generated automatically and will always coincide Thus we eliminate the human factor from the chain altogether ​ More than just code generation​Code generation is just one of the OpenAPI applications OpenAPI is an open format of HTTP API description not tied to any specific ecosystem It allows exchanging the accurate API description between the systems which would otherwise require manual API “synchronization There are a lot of tools based on OpenAPI specifications Openapi tools is a good source of such projects There you can find such projects as GUI specification editors test server generators based on specifications search for vulnerabilities by specifications and many other things Using Open API allows you not only to improve the accuracy of your API descriptions but also to get access to a larger number of tools which might be useful for the project development	2021-09-07 15:10:30
Apple	AppleInsider - Frontpage News	Best Deals September 7 - $120 off Ultra-Wide 24-inch Samsung Monitor, $100 off Coway Air Purifier, and more!	https://appleinsider.com/articles/21/09/07/best-deals-september-7---120-off-ultra-wide-24-inch-samsung-monitor-100-off-coway-air-purifier-and-more?utm_medium=rss	Best Deals September off Ultra Wide inch Samsung Monitor off Coway Air Purifier and more Tuesday s best deals include off a Millennium Falcon Wireless Charger off the Anycubic Photon Mono X Resin D Printer off Coway Air Purifier and more Deals Tuesday September Shopping online for the best discounts and deals can be an annoying and challenging task So rather than sifting through miles of advertisements check out this list of sales we ve hand picked just for the AppleInsider audience Read more	2021-09-07 15:41:07
Apple	AppleInsider - Frontpage News	App Store monopoly lawsuit expands to 'Bitcoin Lottery,' others	https://appleinsider.com/articles/21/09/07/app-store-monopoly-lawsuit-expands-to-bitcoin-lottery-others?utm_medium=rss	App Store monopoly lawsuit expands to x Bitcoin Lottery x othersA lawsuit taking aim at App Store policies has been consolidated with similar complaints claiming that Apple suppresses or rejects certain free apps Credit James Yarema UnsplashThe consolidated complaint builds on a lawsuit filed in July by a pair of developers Those developers included the maker of Coronavirus Reporter who had a long running legal dispute with Apple Read more	2021-09-07 15:34:54
Apple	AppleInsider - Frontpage News	Apple Silicon MacBook Pro with mini LED on schedule for fall launch	https://appleinsider.com/articles/21/09/07/mini-led-macbook-pro-on-schedule-for-fall-launch?utm_medium=rss	Apple Silicon MacBook Pro with mini LED on schedule for fall launchApple s updates to the MacBook Pro range are on schedule mini LED suppliers told a report countering claims of component shortages causing production issues and delays Apple is expected to unveil an updated inch MacBook Pro alongside a inch MacBook Pro as part of the fall product launches While some rumors have spread claiming that shortages are impacting production a Tuesday report s sources claim production is running to time Industry sources of Digitimes say that shipments for LEDs and associated components to Apple assembly partners relating to the MacBook Pro models are on schedule as expected A launch of a mini LED equipped MacBook Pro series is tipped to occur in October or November Read more	2021-09-07 15:25:15
Apple	AppleInsider - Frontpage News	How to get your Mac to read text out loud to you	https://appleinsider.com/articles/21/09/07/how-to-get-your-mac-to-read-text-out-loud-to-you?utm_medium=rss	How to get your Mac to read text out loud to youIf you re having trouble reading what s on your Mac s screen here s how to get Siri to audibly read out what s on screen to you While monitors are the primary way for people to get information from their Mac not everyone has that luxury For those who are visually impaired they cannot rely on what is shown on the screen as a source of information and so require alternative methods Apple has a solution to this buried in its Accessibility settings titled Spoken Content The feature effectively allows you to set macOS to use Siri to read out text that appears onscreen Read more	2021-09-07 15:08:32
Apple	AppleInsider - Frontpage News	Mark Zuckerberg may have lied to Congress about who can see WhatsApp messages	https://appleinsider.com/articles/21/09/07/mark-zuckerberg-may-have-lied-to-congress-about-who-can-see-whatsapp-messages?utm_medium=rss	Mark Zuckerberg may have lied to Congress about who can see WhatsApp messagesThe Facebook owned WhatsApp regularly boasts of using end to end encryption and keeping communications between users private but a report alleges that some monitoring of messages does take place and that Mark Zuckerberg may not have told the truth to the U S Senate In WhatsApp announced it was using end to end encryption for all communications on its platform covering everything from messages to file transfers The use of end to end encryption is intended to offer users a level of privacy and security but it seems that may not be true for the messaging app In a report by ProPublica it is claimed WhatsApp employs more than contract workers in Austin Texas Dublin and Singapore specifically for examining millions of pieces of users content The workers use special Facebook software to look through messages and content that have been flagged by WhatsApp users and have been screened by AI systems Read more	2021-09-07 15:36:53
海外TECH	Network World	BrandPost: Top Five IT Dynamics that Move Organizations to Adopt SASE	https://www.networkworld.com/article/3632161/top-five-it-dynamics-that-move-organizations-to-adopt-sase.html#tk.rss_all	BrandPost Top Five IT Dynamics that Move Organizations to Adopt SASE In just a decade the IT landscape has changed dramatically Ten years ago most business applications were hosted in corporate data centers accessed by employees from the corporate network Applications data and users were secured within a defined perimeter Today with the cloud the rise of IOT mobility and remote working the traditional security perimeter is dissolving and the security architecture must now be tightly integrated with the network SASE Secure Access Service Edge as defined by Gartner in The Future of Network Security is in the Cloud report combines SD WAN with network security services delivered in the cloud  Five dynamics are making the advent of SASE inevitable with no way of turning back To read this article in full please click here	2021-09-07 15:35:00
海外科学	NYT > Science	How the Cat Gets Its Stripes: It’s Genetics, Not a Folk Tale	https://www.nytimes.com/2021/09/07/science/genetics-cat-stripes.html	pattern	2021-09-07 15:53:37
金融	◇◇　保険デイリーニュース　◇◇（損保担当者必携！）	保険デイリーニュース(09/08)	http://www.yanaharu.com/ins/?p=4699	sompo	2021-09-07 15:42:13
ニュース	BBC News - Home	Boris Johnson outlines new 1.25% health and social care tax to pay for reforms	https://www.bbc.co.uk/news/uk-politics-58476632?at_medium=RSS&at_campaign=KARANGA	labour	2021-09-07 15:26:31
ニュース	BBC News - Home	Taliban announce new government for Afghanistan	https://www.bbc.co.uk/news/world-asia-58479750?at_medium=RSS&at_campaign=KARANGA	islamic	2021-09-07 15:37:07
ニュース	BBC News - Home	Police Scotland fined £100,000 over M9 crash death failures	https://www.bbc.co.uk/news/uk-scotland-tayside-central-58474385?at_medium=RSS&at_campaign=KARANGA	woman	2021-09-07 15:10:01
ニュース	BBC News - Home	Covid: No plans for October lockdown, says government	https://www.bbc.co.uk/news/uk-58474536?at_medium=RSS&at_campaign=KARANGA	holiday	2021-09-07 15:42:31
ニュース	BBC News - Home	Chancellor Rishi Sunak announces date of Autumn Budget	https://www.bbc.co.uk/news/uk-politics-58479234?at_medium=RSS&at_campaign=KARANGA	departments	2021-09-07 15:17:36
ニュース	BBC News - Home	National insurance: What’s the new Health and Social Care tax and how will it affect me?	https://www.bbc.co.uk/news/uk-politics-58436009?at_medium=RSS&at_campaign=KARANGA	boris	2021-09-07 15:52:31
ニュース	BBC News - Home	Covid vaccine: How many people in the UK have been vaccinated so far?	https://www.bbc.co.uk/news/health-55274833?at_medium=RSS&at_campaign=KARANGA	country	2021-09-07 15:52:18
ニュース	BBC News - Home	Covid-19 in the UK: How many coronavirus cases are there in my area?	https://www.bbc.co.uk/news/uk-51768274?at_medium=RSS&at_campaign=KARANGA	cases	2021-09-07 15:39:28