投稿時間:2020-06-05 04:27:29 RSSフィード2020-06-05 04:00 分まとめ(31件)

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AWS	AWS Government, Education, and Nonprofits Blog	Supporting elections through voter education and information access, security and scalability, and absentee voting	https://aws.amazon.com/blogs/publicsector/elections-voter-education-information-access-security-scalability-absentee-voting/	Supporting elections through voter education and information access security and scalability and absentee votingEven in uncertain times election officials and political stakeholders are committed to serving a dynamic electorate in a secure scalable and cost effective way Cloud based technologies from Amazon Web Services AWS and the AWS Partner Network APN can help elections administrators campaigns and civic engagement organizations with access to information security and scalability and absentee voting workflow solutions	2020-06-04 18:14:23
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	ルーティングとデフォルトゲートウェイについて教えてください	https://teratail.com/questions/267649?rss=all		2020-06-05 03:44:40
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	herokuのデプロイができない	https://teratail.com/questions/267648?rss=all	herokuのデプロイができないrailsチュートリアルの第一章のところでnbspgitnbsppushnbspherokunbspmasterというコマンドをしてもエラーがでます。	2020-06-05 03:15:38
海外TECH	Ars Technica	Small ISP cancels data caps permanently after reviewing pandemic usage	https://arstechnica.com/?p=1681228	broadband	2020-06-04 18:10:01
海外TECH	Ars Technica	A ton of PlayStation 4 games are on sale today	https://arstechnica.com/?p=1680790	apple	2020-06-04 18:08:04
海外TECH	DEV Community	FizzBuzz Refactoring Challenge with Open/Closed Principle	https://dev.to/olivermensahdev/fizzbuzz-refactoring-challenge-with-open-closed-principle-4m42	FizzBuzz Refactoring Challenge with Open Closed Principle IntroductionHave you ever heard of the FizzBuzz refactoring challenge I got to know about it through an article on Medium The challenge is basically about writing code that allows new requirement to be added to the FizzBuzz problem And the author did a great job with the strategies he adopted in solving the challenge In this article I will share about how the Open Closed principle OCP the O in the SOLID principle acronym will be very useful in solving this challege FizzBuzz ChallengeMostly coding up the FizzBuzz solution is easier by just replacing a number that meets a certain condition with a new value And it usually goes like this multiple of should be replaced with Fizz that of with Buzz and that of both and with FizzBuzz Below is code sample for this challenge lt phpclass FizzBuzz public function generate int limit void for number number lt limit number if number amp amp number echo FizzBuzz n else if number echo Fizz n else if number echo Buzz n else echo number n fizzBuzz new FizzBuzz fizzBuzz gt generate Meeting new RequirementsThen here comes a new requirement to handle such that if a number is a multiple of output Bazz For a multiple of and output FizzBazz And for a multiple of and output BuzzBazz All we need to do is just adding more checks then return what is needed to Below is the code sample we could write for this lt phpclass FizzBuzz public function generate int limit void for number number lt limit number if number amp amp number amp amp number echo FizzBuzzBazz n else if number amp amp number echo FizzBuzz n else if number amp amp number echo FizzBazz n else if number amp amp number echo BuzzBazz n else if number echo Fizz n else if number echo Buzz n else if number echo Bazz n else echo number n fizzBuzz new FizzBuzz fizzBuzz gt generate It is simple to implement it this way But when you consider some principles and patterns this solution is not really scalable Adhering to code design principes will improve how the code is designed And that s where the Open Closed Principle OCP of the SOLID principle comes to a rescue Adopting Open Closed Principle to make FizzBuzz extensibleI recently shared on Twitter about exploring deeper into software design and architecture concepts Through that I learned a lot about different patterns and principles One of which is the SOLID principle and within this we have OCP The OCP states that you should be able to extend a class behavior without modifying it Meaning a unit of code can be considered open for extension when its behavior can be easily changed without modifying it The fact that no actual modification is needed to change the behavior of a unit of code makes it “closed for modification In our case the FizzBuzz class should be able to add more requirement with minimal or no changes to the codebase To do this we need to be able to identify what is happening in each condition that determines a strategy and remove what s common into a specific abstraction such as interface abstract class and class If we use interfaces well then we can easily drop in new implementations without needing to modify our existing calling code hence lets wrap the commonalities into an interface And the commonalities the FizzBuzz class are matching condition and value replacement lt phpinterface RuleInterface public function matches int number bool public function getReplacement string After creating the interface we then allow each specific strategy to implement the interface lt phpclass FizzRule implements RuleInterface public function matches int number bool return number public function getReplacement string return Fizz class BuzzRule implements RuleInterface public function matches int number bool return number public function getReplacement string return Buzz class BazzRule implements RuleInterface public function matches int number bool return number public function getReplacement string return Bazz class BuzzBazzRule implements RuleInterface public function matches int number bool return number amp amp number public function getReplacement string return BuzzBazz class FizzBazzRule implements RuleInterface public function matches int number bool return number amp amp number public function getReplacement string return FizzBazz class FizzBuzzRule implements RuleInterface public function matches int number bool return number amp amp number public function getReplacement string return FizzBuzz class FizzBuzzBazzRule implements RuleInterface public function matches int number bool return number amp amp number amp amp number public function getReplacement string return FizzBuzzBazz Finally we could allow our class to make use of these specifics through dependency injection lt php class FizzBuzz private rules public function construct array rules this gt rules rules public function generateList int limit array list for number number lt limit number list this gt generateElement number return list private function generateElement int number string foreach this gt rules as rule if rule gt matches number return rule gt getReplacement return string number rules new FizzRule new BuzzRule new BazzRule new BuzzBazzRule new FizzBazzRule new FizzBuzzRule new FizzBuzzBazzRule fizzBuzz new FizzBuzz rules list fizzBuzz gt generateList var dump list At the end we can introduce different specifics that we want by just implementing the interface and passing into the the main class FizzBuzz With this approach the FizzBuzz class is not likely to be modified to meet the new requirements and that s what Open Closed principle advocates for ConclusionWe should always try as much as possible to identify some patterns in our code when solving new requirements and find out what principles could be useful in improving the codebase I enjoyed putting this together and I hope you find it very usefulThe sample codes can be found here Let s discuss your opinion about this strategy I used what could have been done better and what you might have used for this problem Together we grow Further ReadingI learned most patterns principles of class design from Matthias Noback s book on Principles of Package Design maybe you can check it up Keep In TouchLet s keep in touch as we continue to explore and learn more about software engineering Don t forget to connect with me on Twitter or LinkedIn	2020-06-04 18:17:32
Apple	AppleInsider - Frontpage News	Close your Apple Watch stand rings on June 5 to earn the World Environment Day badge	https://appleinsider.com/articles/20/06/04/close-your-apple-watch-stand-rings-on-june-5-to-earn-the-world-environment-day-badge	Close your Apple Watch stand rings on June to earn the World Environment Day badgeApple s next Apple Watch activity challenge kicks off on June encouraging users to get up and get active throughout their day	2020-06-04 18:30:24
海外TECH	Engadget	Google says state-backed hackers are targeting Trump and Biden campaigns	https://www.engadget.com/google-trump-biden-election-campaigns-phishing-attempts-184032131.html	Google says state backed hackers are targeting Trump and Biden campaignsGoogle s security researchers say state backed hackers from Iran and China have targeted the Trump and Biden presidential campaigns respectively The state backed actors sent phishing scam attempts to the personal email accounts of campaign staff A	2020-06-04 18:40:32
海外TECH	Engadget	Facebook now lets everyone export media to Google Photos	https://www.engadget.com/facebook-google-photos-tool-available-to-everyone-180952028.html	Facebook now lets everyone export media to Google PhotosYou no longer have to wonder whether or not you can transfer Facebook pictures and videos to Google Photos The company s Alexandru Voica has revealed that everyone worldwide now has access to a tool that sends media to Google s cloud service As bef	2020-06-04 18:09:52
海外科学	NYT > Science	Live Coronavirus News Updates	https://www.nytimes.com/2020/06/04/world/coronavirus-us-update.html	Live Coronavirus News UpdatesFine grained data on race and ethnicity may help the U S begin to address inequities by marshaling resources to particularly hard hit regions The geography of the illness is changing and new infections around the world top a day	2020-06-04 18:20:50
海外科学	NYT > Science	U.S. Sends Two Million Doses of Hydroxychloroquine to Brazil	https://www.nytimes.com/2020/05/31/world/coronavirus-news.html	U S Sends Two Million Doses of Hydroxychloroquine to BrazilThe two countries are studying whether the drug is safe and effective for the prevention and early treatment of Covid Nicaragua has become a place of midnight burials	2020-06-04 18:23:26
海外ニュース	Japan Times latest articles	Japan softens re-entry ban that left foreign residents stranded	https://www.japantimes.co.jp/news/2020/06/04/national/japan-softens-re-entry-ban-foreign-residents/	Japan softens re entry ban that left foreign residents strandedThe government says it has softened its stance on humanitarian grounds and will now allow foreign residents to re enter the country regardless of their visa	2020-06-05 03:47:22
海外ニュース	Japan Times latest articles	Japan governors discuss balancing economic revival and virus control	https://www.japantimes.co.jp/news/2020/06/04/national/japan-governors-balancing-revival-virus/	compile	2020-06-05 04:28:57
海外ニュース	Japan Times latest articles	Hong Kong democracy activists press Japan to reconsider Xi visit	https://www.japantimes.co.jp/news/2020/06/04/national/politics-diplomacy/hong-kong-pro-democracy-activists-press-tokyo-rethink-xis-visit-japan/	Hong Kong democracy activists press Japan to reconsider Xi visitPro democracy campaigners say timing of such a trip would be inappropriate given current international criticism over the human rights situation in the city	2020-06-05 04:21:56
海外ニュース	Japan Times latest articles	Hong Kong makes insulting China’s national anthem a crime	https://www.japantimes.co.jp/news/2020/06/04/asia-pacific/hong-kong-chinas-anthem/	democracy	2020-06-05 03:35:53
海外ニュース	Japan Times latest articles	Broncos coach Vic Fangio apologizes after suggesting there was no racism in NFL	https://www.japantimes.co.jp/sports/2020/06/04/more-sports/football/broncos-coach-vic-fangio-apologizes-suggesting-no-racism-nfl/	Broncos coach Vic Fangio apologizes after suggesting there was no racism in NFLDenver Broncos coach Vic Fangio is apologizing for suggesting discrimination and racism aren t problems in the NFL After reflecting on my comments yesterday and listening to	2020-06-05 03:55:24
海外ニュース	Japan Times latest articles	Keirin cyclists Yuta Wakimoto, Yudai Nitta among six named to Tokyo Olympics team	https://www.japantimes.co.jp/sports/2020/06/04/olympics/keirin-cyclists-yuta-wakimoto-yudai-nitta-among-six-named-tokyo-olympics-team/	Keirin cyclists Yuta Wakimoto Yudai Nitta among six named to Tokyo Olympics teamThe Japan Cycling Federation on Thursday named six athletes who will represent the host nation in track cycling at the postponed Tokyo Games including keirin	2020-06-05 03:39:35
海外ニュース	Japan Times latest articles	An uphill battle to reverse the falling birth rate	https://www.japantimes.co.jp/opinion/2020/06/04/editorials/uphill-battle-reverse-falling-birth-rate/	crisis	2020-06-05 04:05:16
海外ニュース	Japan Times latest articles	A smart, not confrontational, China strategy needed	https://www.japantimes.co.jp/opinion/2020/06/04/commentary/world-commentary/smart-not-confrontational-china-strategy-needed/	principles	2020-06-05 04:00:06
海外ニュース	Japan Times latest articles	Has racism exacerbated the COVID-19 crisis?	https://www.japantimes.co.jp/opinion/2020/06/04/commentary/world-commentary/racism-exacerbated-covid-19-crisis/	social	2020-06-05 03:55:25
ニュース	BBC News - Home	Coronavirus: Face coverings to be mandatory on public transport	https://www.bbc.co.uk/news/uk-52927089	secretary	2020-06-04 18:40:14
ニュース	BBC News - Home	Madeleine McCann 'assumed dead' by German prosecutors	https://www.bbc.co.uk/news/uk-52916137	british	2020-06-04 18:03:35
ニュース	BBC News - Home	Coronavirus: Business Secretary Alok Sharma tests negative	https://www.bbc.co.uk/news/uk-politics-52924944	negativethe	2020-06-04 18:02:23
ニュース	BBC News - Home	George Floyd death: Thousands join Birmingham protest	https://www.bbc.co.uk/news/uk-england-birmingham-52920826	death	2020-06-04 18:09:17
ニュース	BBC News - Home	Chelsea in talks to sign RB Leipzig striker Werner	https://www.bbc.co.uk/sport/football/52928359	clause	2020-06-04 18:20:00
ニュース	BBC News - Home	Coronavirus: Who should wear a face mask or face covering?	https://www.bbc.co.uk/news/health-51205344	england	2020-06-04 18:06:52
ビジネス	ダイヤモンド・オンライン - 新着記事	少ない金額でも世界中の株式や債券などに 幅広く分散投資できるのが、 投資信託の魅力 - 全面改訂 投資信託選びでいちばん知りたいこと	https://diamond.jp/articles/-/239306	少ない金額でも世界中の株式や債券などに幅広く分散投資できるのが、投資信託の魅力全面改訂投資信託選びでいちばん知りたいこと日本国内に出回る投資信託の数は、今や約本。	2020-06-05 04:00:00
ビジネス	ダイヤモンド・オンライン - 新着記事	誤解をまねくグラフの典型的パターン第1位 - グラフのウソを見破る技術	https://diamond.jp/articles/-/239072	読み方	2020-06-05 03:55:00
ビジネス	ダイヤモンド・オンライン - 新着記事	自宅でできる就活対策。 Web面接で印象アップする方法 - 絶対内定	https://diamond.jp/articles/-/238669	館長	2020-06-05 03:50:00
ビジネス	ダイヤモンド・オンライン - 新着記事	【史上最ラク＆最速弁当】 レンチン5分で超簡単！ コロナ太り解消に「タイ風サラダ弁」 - てんきち母ちゃんのらくべん！	https://diamond.jp/articles/-/239110	【史上最ラク最速弁当】レンチン分で超簡単コロナ太り解消に「タイ風サラダ弁」てんきち母ちゃんのらくべん寝坊した、材料がない、気力がないそんなピンチの時でも、必ず作れる、史上最ラク最速の弁当本「てんきち母ちゃんのらくべん」が話題です「レンチン回」「冷蔵庫にあるものだけ」「実働分」でできるのに、見た目もよくて、もちろんおいしい、神レシピが満載です。	2020-06-05 03:45:00
Azure	Azure の更新情報	Azure Monitor for containers now supports log collection on AKS Windows node pools (in preview)	https://azure.microsoft.com/ja-jp/updates/ci-windows-logging/	Azure Monitor for containers now supports log collection on AKS Windows node pools in preview Starting with agent version ciprod Azure Monitor for containers will collect logs std stderr for the containers running on AKS clusters with Windows node pools	2020-06-04 18:00:27