投稿時間:2022-05-25 15:31:27 RSSフィード2022-05-25 15:00 分まとめ(34件)

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IT	ITmedia 総合記事一覧	[ITmedia ビジネスオンライン] 大京、東京・墨田に“間取りを変更できる”賃貸マンション　　5月下旬より入居開始	https://www.itmedia.co.jp/business/articles/2205/25/news137.html	itmedia	2022-05-25 14:45:00
IT	ITmedia 総合記事一覧	[ITmedia ビジネスオンライン] 大学の新入生が使うSNS　女子に人気の「Instagram」、男子に人気は？	https://www.itmedia.co.jp/business/articles/2205/25/news126.html	instagram	2022-05-25 14:30:00
IT	ITmedia 総合記事一覧	[ITmedia PC USER] Poly、小規模会議室向けのUSB外付けビデオバー「Poly Studio R30」	https://www.itmedia.co.jp/pcuser/articles/2205/25/news134.html	itmediapcuserpoly	2022-05-25 14:24:00
IT	ITmedia 総合記事一覧	[ITmedia ビジネスオンライン] 住信SBIネット銀、為替手数料改定　米ドルは1.5倍に	https://www.itmedia.co.jp/business/articles/2205/25/news123.html	itmedia	2022-05-25 14:23:00
IT	ITmedia 総合記事一覧	[ITmedia ビジネスオンライン] 缶詰を「非常食として備蓄」4割強に　人気の缶詰は？	https://www.itmedia.co.jp/business/articles/2205/25/news122.html	itmedia	2022-05-25 14:10:00
TECH	Techable（テッカブル）	ロボット活用の冷凍フライ投入システム登場。揚げ物製造現場の労災リスク低減・労力確保に期待	https://techable.jp/archives/179336	cobottapro	2022-05-25 05:00:30
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	「欧州のためのクラウド」という理念に迷走するGAIA-X、メンバー企業間に不協和音：第32回 | IT Leaders	https://it.impress.co.jp/articles/-/23216	「欧州のためのクラウド」という理念に迷走するGAIAX、メンバー企業間に不協和音第回ITLeadersドイツが主導する欧州のクラウドデータ基盤構築プロジェクト「GAIAXガイアエックス」をご存じだろうか。	2022-05-25 14:30:00
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	デル、SANストレージ製品群を刷新、NVMe/TCPやNAS機能を新たに搭載 | IT Leaders	https://it.impress.co.jp/articles/-/23215	デル、SANストレージ製品群を刷新、NVMeTCPやNAS機能を新たに搭載ITLeadersデル・テクノロジーズは年月日、ストレージ新モデル群を発表した。	2022-05-25 14:19:00
python	Pythonタグが付けられた新着投稿 - Qiita	keras.optimizersから読み込む最適化手法のエラーについて	https://qiita.com/rython/items/9c615fbda477bcc4a7e6	colaboratorypythonkeras	2022-05-25 14:43:57
js	JavaScriptタグが付けられた新着投稿 - Qiita	青空文庫のルビを消すスクリプト	https://qiita.com/oyahiroki/items/3941a57ce1b5e379fd01	javascript	2022-05-25 14:55:37
AWS	AWSタグが付けられた新着投稿 - Qiita	Terraformで最新のAMIを使ってEC2を構築する設定、の注意	https://qiita.com/abetomo/items/b5b91bd75597fd73950e	terraform	2022-05-25 14:06:59
技術ブログ	Developers.IO	【レポート】DX を推進するお客さまの取り組みと AWS のサービス(AWS-10) #AWSSummit	https://dev.classmethod.jp/articles/aws-summit-japan-online-2022-aws-10/	awsawssummit	2022-05-25 05:54:47
技術ブログ	Developers.IO	Control Towerのアカウント発行をService Catalogの権限に絞ったポリシーでやってみた	https://dev.classmethod.jp/articles/control-tower-account-issuance-to-service-catalog-privileges/	administrator	2022-05-25 05:52:39
技術ブログ	Developers.IO	AWS Summit India: Agenda Day 1	https://dev.classmethod.jp/articles/aws-summit-india-agenda-day-1/	AWS Summit India Agenda Day My Day Agenda The sessions I ll be attending on Day of AWS Summit India are listed below Culture of Se	2022-05-25 05:28:19
海外TECH	DEV Community	7 Hot 🔥 features that will get you started with dart ⏭️	https://dev.to/dmutoni/7-hot-features-that-will-get-you-started-with-dart-847	Hot features that will get you started with dart ️Hello folks In this series this is the rd chapter of what to know about dart before getting started to flutter have a look Difference between const final and var Final means single assignment a final variable or field must have an initializer Once assigned a value a final variable s value cannot be changed final modifies variables Final value can only be determined at run time Thus like when using DateTime now since the current date and time can only bedetermined at runtime not at compile time Const has a meaning that s a bit more complex and subtle in Dart const modifies values You can use it when creating collections like const and when constructing objects instead of new like const Point Here const means that the object s entire deep state can be determined entirely at compile time and that the object will be frozen and completely immutable Then for var is completely mutable as its value can be reassigned at any point final variables can only be assigned once but by using objects you can change the value of its fields const variables are compile time constants and are fully immutable nothing about these variables can be changed oncethey ve been assigned Why should we use immutable data types They are two primary benefits of using immutable data types which are It s faster When you declare a const value the compiler has less work to do It only has to allocate memory for that variable once and doesn t need to worryabout reallocating if the variable is reassigned This may seem like an infinitesimal gain but as your programs grow your performance gain grows as well Immutable data does not have side effects One of the most common sources of bugs in programming is where value is changed in one place and it causes an unexpected cascade of changes If the data cannot change then there will be no cascade And in practice most variables tend to only be assigned once anyway so why not take advantage of immutability String buffer in dartThe first interesting thing about strings in dart is that it s okay if you use single quotes or double quotes they both work It s probably worth mentioning another way to perform concatenation tasks which is using the StringBufferobject Consider the following code List fruits Strawberry Coconut Orange Mango Apple StringBuffer buffer StringBuffer for String fruit in fruits buffer write fruit buffer write print buffer toString prints Strawberry Coconut Orange Mango AppleAs you can use a StringBuffer to incrementally build a string This is better than usingstring concatenation as it performs better You add content to a StringBuffer by callingits write method Then once it s been created you can transform it into a String with thetoString method Types of parameters in dartDart has two types of parameters which are gt named and positional parameters Positional optional parameters are those parameters that are used if you wrap your function s parameter list in square brackets then those parameters can be omitted without the compiler throwing errors The question mark after a parameter such as in String name tells the Dart compiler that the parameter itself can be null Remember we covered this in the previous chapter so here by they are used like this void unnamed String name int age final actualName name Unknown final actualAge age print actualName is actualAge years old One more thing to add also supports named optional parameters with curly braces Then When calling a function with named parameters you need to specify theparameter name You can call the parameters in any order forexample named greeting hello And Dart also supports default values for parameters ClosuresClosures also known as first class functions are an interesting language feature that emerged from lambda calculus in the s The basic idea is that a function is also a value that can be passed around to other functions as a parameter These types of functions are called closures but there is really no difference between a function and a closure Closures can be saved to variables and used as parameters for other functions They areeven written inline when consuming a function that expects a closure as a property We can optimise the use of closures using typedef keyword have a look typedef NumberGetter int Function int powerOfTwo NumberGetter getter return getter getter Relationships between classes in dart Grouping data and manipulating data in dartNow as you are familiar with other languages you know that each language has a way to organize data you can use one of these collections Lists are linear collections where the order of the elements is maintained Maps are a non linear collection of values that can be accessed by a unique key Sets are a non linear collection of unique values where the order is not maintainedIf Dart is not your first programming language thenthis matrix should help you correlate collections to equivalent concepts in other languages One thing that these collections have in common is a subscript syntax Subscripts are a way to quickly access elements in a collection and they tend to work identically from language tolanguage like numbers Horrayyy ️Thanks fo reading to this far now you re good to go with dart this marks the end of our series about the introduction to dart Thank you stay tuned for more articles And for further explanation please head to dart dev	2022-05-25 05:35:42
海外TECH	DEV Community	Create a custom React stopwatch timer component	https://dev.to/michaelburrows/create-a-custom-react-stopwatch-timer-component-de1	Create a custom React stopwatch timer componentIn this tutorial we ll be creating a React stopwatch timer component The completed stopwatch component will display minutes seconds and milliseconds with start stop and reset functionality Let s get started by setting up a dev environment using Create React App npx create react app react stopwatchNext create a new Stopwatch js file in the src folder import React useState useEffect from react const Stopwatch gt export default Stopwatch We ll be using two React Hooks firstly useState which allows us to store state in a function based component It ll be used to store the stopwatch time and also whether or not the stopwatch is running The useEffect Hook checks if the timer is running and if so updates the time In the Stopwatch function we ll first declare variables for the time and running states const Stopwatch gt const time setTime useState const running setRunning useState false Then we ll calculate the time using a useEffect Hook amp setInterval method const Stopwatch gt const time setTime useState const running setRunning useState false useEffect gt let interval if running interval setInterval gt setTime prevTime gt prevTime else if running clearInterval interval return gt clearInterval interval running To complete the component we ll output the time along with control buttons const Stopwatch gt const time setTime useState const running setRunning useState false useEffect gt let interval if running interval setInterval gt setTime prevTime gt prevTime else if running clearInterval interval return gt clearInterval interval running return lt div className stopwatch gt lt div className numbers gt lt span gt Math floor time slice lt span gt lt span gt Math floor time slice lt span gt lt span gt time slice lt span gt lt div gt lt div className buttons gt lt button onClick gt setRunning true gt Start lt button gt lt button onClick gt setRunning false gt Stop lt button gt lt button onClick gt setTime gt Reset lt button gt lt div gt lt div gt The time is calculated by dividing the time by the number of milliseconds for each unit of time We then use the remainder operator to calculate if the time is divisible by for seconds for minutes and for milliseconds For example minute seconds is milliseconds so to calculate the seconds we do Without the remainder operator we just get the total seconds Finally replace the contents of App js to import and load the stopwatch component import Stopwatch from Stopwatch const App gt return lt div className App gt lt Stopwatch gt lt div gt export default App That s all for this tutorial hopefully it ll serve as a starting point for you to build more complex time based applications Whilst you re here be sure to checkout our ever expanding collection of practical React tutorials	2022-05-25 05:12:14
海外TECH	Engadget	Lyft joins Uber in cutting back on new hiring	https://www.engadget.com/lyft-joins-uber-in-cutting-back-on-new-hiring-055129536.html?src=rss	Lyft joins Uber in cutting back on new hiringAfter Uber announced that it was cutting back on hiring and other expenses due to the economic slowdown rival Lyft is doing the same according to The Wall Street Journal quot Given the slower than expected recovery and need to accelerate leverage in the business we ve made the difficult but important decision to significantly slow hiring in the US quot Lyft President John Zimmer reportedly wrote in a memo to staff There are no layoffs planned However the decision means the company will give priority to fewer initiatives and not fill many current open roles focusing instead on critical roles that support its core rides business the memo further states nbsp Tech companies have been hard hit during the economic slowdown with Amazon reporting its slowest growth in nearly years and Snap shares declining percent after it reported earnings yesterday Lyft has been hit particularly hard having lost more than percent of its value since the beginning of with a percent decline alone yesterday	2022-05-25 05:51:29
金融	ニッセイ基礎研究所	海外事例にみるＣＢＤＣ手数料－国内事情にあった導入を模索すべき	https://www.nli-research.co.jp/topics_detail1/id=71210?site=nli	例えば、公共性を優先して、CBDCを無償もしくは、他の決済手段と比べて安価な手数料で導入した場合には、利用者は手数料の減少から恩恵を受ける一方、民間事業者は事業コストの増加や競争環境の悪化といった問題に直面する。	2022-05-25 14:51:19
ニュース	@日本経済新聞 電子版	ガソリン、170円割れ　補助金支給後で初めて https://t.co/wwv3sfUOl7	https://twitter.com/nikkei/statuses/1529336648101933056	補助金支給	2022-05-25 05:40:45
ニュース	@日本経済新聞 電子版	コロナ禍でフランス発「つながらない権利」再注目(FT) https://t.co/xckoc0twRY	https://twitter.com/nikkei/statuses/1529336133674749954	注目	2022-05-25 05:38:42
ニュース	@日本経済新聞 電子版	「観光競争力、日本が初の首位 WEF調査」の英文記事をNikkei Asia @NikkeiAsia に掲載しています。 ▶️ Japan tops global tourism index for 1st time, desp… https://t.co/rKCvH8CVcQ	https://twitter.com/nikkei/statuses/1529334057460547585	「観光競争力、日本が初の首位WEF調査」の英文記事をNikkeiAsiaNikkeiAsiaに掲載しています。	2022-05-25 05:30:27
ニュース	@日本経済新聞 電子版	サントリー新浪氏「世界の分断回避を」　対立激化に警鐘 https://t.co/OFjuEhdTdG	https://twitter.com/nikkei/statuses/1529332745901469696	激化	2022-05-25 05:25:14
海外ニュース	Japan Times latest articles	Indo-Pacific alignment against China still elusive despite Biden trip	https://www.japantimes.co.jp/news/2022/05/25/national/indo-pacific-alignment-biden/	Indo Pacific alignment against China still elusive despite Biden tripWhile differences among the Quad members over Russia are likely to persist Biden is also facing headwinds over his plans for economic engagement in the	2022-05-25 14:21:41
海外ニュース	Japan Times latest articles	Conveyor-belt sushi chains in Japan raise prices amid soaring costs	https://www.japantimes.co.jp/news/2022/05/25/business/corporate-business/sushi-chains-prices/	Conveyor belt sushi chains in Japan raise prices amid soaring costsThe sushi plate has been an icon of conveyor belt sushi chains for decades but they are now having difficulties maintaining that price tag	2022-05-25 14:17:50
ニュース	BBC News - Home	Footballers agree to spot-fix matches for undercover reporter	https://www.bbc.co.uk/news/uk-wales-61507085?at_medium=RSS&at_campaign=KARANGA	discussions	2022-05-25 05:14:28
ニュース	BBC News - Home	Luis Diaz: How Liverpool's Colombian star made himself a fixture in the starting XI	https://www.bbc.co.uk/sport/football/61414160?at_medium=RSS&at_campaign=KARANGA	Luis Diaz How Liverpool x s Colombian star made himself a fixture in the starting XILuis Diaz is chasing a third trophy in four months with Liverpool but just how big an impact has he had since joining in January	2022-05-25 05:25:26
ニュース	BBC News - Home	Monday Night Club: Is Liverpool's season 'disappointing' without Champions League win?	https://www.bbc.co.uk/sport/av/football/61560042?at_medium=RSS&at_campaign=KARANGA	Monday Night Club Is Liverpool x s season x disappointing x without Champions League win The Monday Night Club s Chris Sutton Mark Chapman Rory Smith and Micah Richards discuss whether Liverpool s season would be disappointing if they did not win the Champions League	2022-05-25 05:17:14
北海道	北海道新聞	維新、参院選に猪瀬直樹氏擁立　現金受領問題で都知事辞職	https://www.hokkaido-np.co.jp/article/685175/	日本維新の会	2022-05-25 14:12:00
北海道	北海道新聞	道内ＩＴ業界で在宅勤務定着　さらなる推進へ魅力的な職場づくり急ぐ	https://www.hokkaido-np.co.jp/article/685139/	新型コロナウイルス	2022-05-25 14:11:28
北海道	北海道新聞	投資機構、東芝買収を検討　官民ファンド	https://www.hokkaido-np.co.jp/article/685174/	官民ファンド	2022-05-25 14:05:00
IT	週刊アスキー	スマホアプリ『FFVII THE FIRST SOLDIER』に少人数のマルチプレイヤー対戦モード「ブリッツモード：神羅ビル」が期間限定で登場！	https://weekly.ascii.jp/elem/000/004/092/4092526/	antasyviithefirstsoldier	2022-05-25 14:55:00
IT	週刊アスキー	最大90％オフ！「セガ アーリーサマーセール2022」ではPS5『龍が如く7』や『Virtua Fighter esports』など35タイトルが対象に	https://weekly.ascii.jp/elem/000/004/092/4092522/	playstation	2022-05-25 14:35:00
IT	週刊アスキー	ソフトバンク、長時間かつ広範囲での安心・安全なドローンの運用の実現に向けてアミューズワンセルフと技術提携	https://weekly.ascii.jp/elem/000/004/092/4092513/	技術提携	2022-05-25 14:30:00
IT	週刊アスキー	シネマティック・ステルスアドベンチャー『The Lord of the Rings: Gollum』がPC／PS／Xboxで9月1日に発売決定！	https://weekly.ascii.jp/elem/000/004/092/4092515/	シネマティック・ステルスアドベンチャー『TheLordoftheRingsGollum』がPCPSXboxで月日に発売決定年月日。	2022-05-25 14:15:00