| IT |
ITmedia 総合記事一覧 |
[ITmedia Mobile] BALMUDA Phoneに次ぐ新製品、投入先送りに 寺尾社長「研究開発は止めない」 |
https://www.itmedia.co.jp/mobile/articles/2211/08/news192.html
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balmudaphone |
2022-11-08 19:20:00 |
| IT |
ITmedia 総合記事一覧 |
[ITmedia ビジネスオンライン] ABEMA、「ONE 163」を生中継 格闘技コンテンツでファンを囲い込み |
https://www.itmedia.co.jp/business/articles/2211/08/news021.html
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abema |
2022-11-08 19:17:00 |
| Linux |
Ubuntuタグが付けられた新着投稿 - Qiita |
Ubuntu カーネルのビルド |
https://qiita.com/intrajp/items/166731a619d60fb27f5e
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docker |
2022-11-08 19:11:14 |
| 技術ブログ |
Developers.IO |
[新機能] リージョン・サービスを横断してリソースを検索できる AWS Resource Explorer が使えるようになっていました |
https://dev.classmethod.jp/articles/aws-resource-explorer-new/
|
ceexplorerawsresourceexpl |
2022-11-08 10:09:44 |
| 海外TECH |
DEV Community |
Refactoring Tools: Fewer Errors with Declarative Style |
https://dev.to/bespoyasov/refactoring-tools-fewer-errors-with-declarative-style-1b4c
|
Refactoring Tools Fewer Errors with Declarative StyleLet s continue our series of short posts about code refactoring In it we discuss technics and tools that can help you improve your code and projects Today we will talk about declarative code style and how it can help us decrease the number of accidental mistakes and errors in our code Imperative and Declarative StylesTo understand the difference between imperative and declarative styles let s take a look at the example const evenNumbers for const x of array if x evenNumbers push x const isEven x gt x const evenNumbers array filter isEven The first code snippet is imperativeーit describes how to solve the problem as a set of instructions Create an empty evenNumbers array Iterate over the given array variable Check each number if it is even If so add it to evenNumbers On the other hand the second snippet describes what needs to be done It focuses on the filtering criteria not the details of the filtering algorithm This is the difference between the imperative and declarative styles Declarative code describes what to do while imperative code describes how to do it Mixed ConcernsIn imperative code we have to think about “the goal and “how to achieve it simultaneously Because of this the imperative code often contains more lines and statistically is more likely to contain an error Let s look at another example The selectOperation function below chooses a mathematical operation by the given key function selectOperation kind let operation null switch kind case log operation x base gt Math log x Math log base case root operation x root gt x root default operation x gt x return operation The function seems okay but every case block in it misses the break statement As a result the operation variable will always be equal to x gt x Such an error is relatively easy to spot in a small function but if there s a lot of code it s much easier to miss Since in imperative code the number of lines and characters is smaller it s easier for us to see such errors For missing break statements we can always set up linter rules and tests to automatically search for such errors However in my experience it isn t always enough because if there s a way in the code to make a mistake people will make the mistake So it s better to write code in such a way that there are fewer potential “pits of failure Improving CodeWe can get rid of the problem of accidental errors by making the selection declarative const log x base gt Math log x Math log base const pow x power gt x power const id x gt x function selectOperation kind const operations root pow id return operations kind operations id In the code above we now delegate the “selection to the language itself We don t care how that choice is made we only care about its result In this code it s much more difficult to make an accidental mistake because there s less code and its structure is more robust I also like the last snippet for aesthetic reasons Selecting from an object by key looks like a more natural solution to this problem while code with switch seems noisy and verbose More About Refactoring in My BookIn this post we only discussed the reliability of the declarative code style We haven t mentioned its other benefits like better readability and extensibility more accurate modeling of the domain and the ability to split the code and configs If you want to know more about these aspects and refactoring in general I encourage you to check out my online book “Refactor Like a Superhero The book is free and available on GitHub In it I explain the topic in more detail and with more examples Hope you find it helpful Enjoy the book |
2022-11-08 10:56:28 |
| 海外TECH |
DEV Community |
In One Minute : Flutter |
https://dev.to/rakeshkr2/in-one-minute-flutter-549a
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In One Minute FlutterFlutter applications are written in the Dart programming language and can connect to platform languages such as Java Kotlin Swift and Objective C Also thanks to ffi support it is possible to interact with the C code directly Flutter itself is built with C C Dart and Skia a D rendering engine Flutter development is currently supported on Linux Mac OS X Chrome OS and Windows operating systems Flutter is developed and maintained by Google and will be the main development SDK for Fuchsia the expected and upcoming new Operating System also by Google Four main components of Flutter A heavily optimised mobile first D rendering engine with excellent support for text for fps appsA functional reactive framework so you can build customised UIsA rich set of libraries and widgets Material Design Cupertino widgets optional you can build your own widgets so you can get started quickly and produce high fidelity experiencesProductive CLI and IDE IntelliJ tools for sub second developer cyclesFlutter is different than most other options for building mobile apps because Flutter uses neither WebView nor the OEM widgets that shipped with the device Instead Flutter uses its own high performance rendering engine and framework to draw widgets to the screen Flutter also offers developers a highly productive and fast development experience fast runtime and engine performance and beautifully designed widgets that make for beautiful apps ResourceOfficial websiteGetting startedFlutter SDK releasesFlutter Development Mailing ListTwitter flutterdevA Tour of the Dart Programming LanguageGoogle Codelabs FlutterDartPad for Flutter Source Code and BuildingSource codeLatest LTS Version released on May CommunityGitter Exchange channel Facebook Facebook communityLet s Flutter with Dart Facebook commnunityr FlutterDev Subreddit Reddit community Dev Discord Discord server to discuss and get help Flutter Community Central place for community made packages OpenFlutter Make it easier Awesome Flutter Biggest curated resources listMedium articles tutorials BooksFlutter in Action Complete Flutter and Dart resource currently in Early Access |
2022-11-08 10:30:00 |
| 海外TECH |
Engadget |
Signal adds Stories to its secure messaging app |
https://www.engadget.com/signal-stories-release-095559625.html?src=rss
|
Signal adds Stories to its secure messaging appSignal now has its own ephemeral Snapchat like feature that you can use to share photos with friends The messaging app has released the feature a month after it revealed that it was hopping on the Stories bandwagon and was already beta testing the capability Also called Stories Signal s new feature lets you post photos that will remain viewable on the app for hours unless you erase them before the time is up Signal says that like everything available on its app Stories are end to end encrypted and will only be visible to the people you ve chosen to share them with These people could be everyone in your contacts that use the app along with anybody you ve had a one on one conversation with or whose message request you d accepted even if you d never added them You can also create custom stories that will only be available to select viewers you choose ーsay your colleagues or people with the same interests Plus you can share stories with existing groups Just take note that everyone in that group will be able to see what you share even those you d never interacted with in individual chats nbsp Seeing as Facebook and Instagram already have similar features and Snapchat still exists it remains to be seen whether Signal s take can get people to use the app more Signal s Stories are now available on its Android and iOS app and they re coming soon to desktop as well If you d rather not see your contact s Stories or if you re not interested in posting your own you can alway opt out by going to Settings and toggling on Turn off stories |
2022-11-08 10:25:59 |
| 医療系 |
医療介護 CBnews |
軽度者への訪問介護等、段階的にでも地域支援事業移行を-財務省提言、ケアマネジメントの利用者負担なども |
https://www.cbnews.jp/news/entry/20221108191636
|
利用者負担 |
2022-11-08 19:30:00 |
| ニュース |
BBC News - Home |
Just Stop Oil protestors cause widespread disruption to M25 |
https://www.bbc.co.uk/news/uk-england-essex-63552488?at_medium=RSS&at_campaign=KARANGA
|
london |
2022-11-08 10:26:40 |
| ニュース |
BBC News - Home |
Dover migrant centre attack: Firebomber died of asphyxiation, inquest told |
https://www.bbc.co.uk/news/uk-england-kent-63552462?at_medium=RSS&at_campaign=KARANGA
|
dover |
2022-11-08 10:44:04 |
| ニュース |
BBC News - Home |
Primark pledges no more price rises as costs soar |
https://www.bbc.co.uk/news/business-63553057?at_medium=RSS&at_campaign=KARANGA
|
costs |
2022-11-08 10:55:34 |
| IT |
週刊アスキー |
オーディオテクニカのワイヤレスヘッドホン「ATH-M20xBT」に新色ホワイトが登場 |
https://weekly.ascii.jp/elem/000/004/112/4112256/
|
athmx |
2022-11-08 19:50:00 |
| IT |
週刊アスキー |
SteamでTHQタイトルが最大80％オフ！『ウェイ オブ ザ ハンター』が25％オフに |
https://weekly.ascii.jp/elem/000/004/112/4112288/
|
steam |
2022-11-08 19:45:00 |
| IT |
週刊アスキー |
ドコモ社長、プラチナバンド再割当について「現実的にできるかがこれからの課題」 |
https://weekly.ascii.jp/elem/000/004/112/4112287/
|
基本方針 |
2022-11-08 19:15:00 |
| IT |
週刊アスキー |
PS5／PS4『ヴァルキリーエリュシオン』で無料アップデートが実施 |
https://weekly.ascii.jp/elem/000/004/112/4112269/
|
無料アップデート |
2022-11-08 19:10:00 |
| IT |
週刊アスキー |
PC『ガンダムトライヴ』で「青き孤高の戦士～スミス海の戦い～」が開催！ |
https://weekly.ascii.jp/elem/000/004/112/4112270/
|
開催 |
2022-11-08 19:05:00 |
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