投稿時間:2021-10-20 04:35:23 RSSフィード2021-10-20 04:00 分まとめ(36件)

カテゴリー等	サイト名等	記事タイトル・トレンドワード等	リンクURL	頻出ワード・要約等/検索ボリューム	登録日
IT	気になる、記になる…	｢MacBook Pro｣の5G対応は2024年以降か	https://taisy0.com/2021/10/20/147629.html	apple	2021-10-19 18:03:24
TECH	Engadget Japanese	Googleが「Android 12」を配信開始、Pixelスマートフォン限定	https://japanese.engadget.com/android-12-pixel-181116098.html	android	2021-10-19 18:11:16
AWS	AWS Architecture Blog	Designing a High-volume Streaming Data Ingestion Platform Natively on AWS	https://aws.amazon.com/blogs/architecture/designing-a-high-volume-streaming-data-ingestion-platform-natively-on-aws/	Designing a High volume Streaming Data Ingestion Platform Natively on AWSThe total global data storage is projected to exceed zettabytes by This exponential growth of data demands increased vigilance against cybercrimes Emerging cybersecurity trends include increasing service attacks ransomware and critical infrastructure threats Businesses are changing how they approach cybersecurity and are looking for new ways to tackle these threats In the past …	2021-10-19 18:16:28
AWS	AWS Messaging and Targeting Blog	Replace traditional email mailbox polling with real-time reads using Amazon SES and Lambda	https://aws.amazon.com/blogs/messaging-and-targeting/replace-traditional-email-mailbox-polling-with-real-time-reads-using-amazon-ses-and-lambda/	Replace traditional email mailbox polling with real time reads using Amazon SES and LambdaIntegrating emails into an automated workflow for automated processing can be challenging Traditionally applications have had to use the POP protocol to connect to mail servers and poll for emails to arrive in a mailbox and then process the messages inline and perform actions on the message This can be an inefficient mechanism and prone …	2021-10-19 18:18:42
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	docker-composeでコンテナが作成されない。	https://teratail.com/questions/365260?rss=all	dockercomposeでコンテナが作成されない。	2021-10-20 03:39:49
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	メッシュで構成された3DモデルのSTLファイルで座標位置を取得したい	https://teratail.com/questions/365259?rss=all	メッシュで構成されたDモデルのSTLファイルで座標位置を取得したい前提・実現したいことプログラミング初心者です。	2021-10-20 03:35:26
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	exec()で、特定の変数に代入処理が正常動作しない	https://teratail.com/questions/365258?rss=all	execで、特定の変数に代入処理が正常動作しない前提・実現したいこと現在、組織内の様々な場所で、様式がバラバラなExcel方眼紙俗にいうネ申Excelが運用されています。	2021-10-20 03:23:50
海外TECH	Ars Technica	The electric 2022 Volvo C40 Recharge puts style at a premium	https://arstechnica.com/?p=1805604	crossover	2021-10-19 18:29:44
海外TECH	Ars Technica	EPA: Chemicals called PFAS will see more research and new regulations	https://arstechnica.com/?p=1805774	chemicals	2021-10-19 18:00:40
海外TECH	DEV Community	Singleton Pattern	https://dev.to/victorpinzon1988eng/singleton-pattern-2eh5	Singleton PatternI bet you heard of the Singleton Pattern before and it doesn t surprise me because this pattern has been built into so many frameworks nowadays mostly because it s one the simplest to implement But what is Singleton Pattern and what problem does it solve DefinitionAccording to GoF Singleton Pattern ensures a class has only one instance and provides a global access to it Perfect why would I need a single instance of a class Suppose that you have a Logger class that records all your application activity You don t need to instantiate different objects of the same logger in all your classes you just need one instance and a means to access it Another example would be to reduce the use of global variables so instead of using an excessive number of global variables you could just create an object using the Singleton Pattern BenefitsThere are many benefits of the application of this pattern There is controlled access to the sole instance of your class It reduces the excessive use of global variables which is a bad practice It s easy to maintain because it provides a single point of access It can be lazy or eager loading It can be thread safe ApplicationThe Singleton Pattern can be applied in any of the following cases Class instantiation is resource expensive to perform Global variables reduction By design you must have a sole object of a given class Implementing The Singleton Pattern To apply the Singleton Pattern in a specific class we must do the following Create a private constructor Define a global static object where we ll store our sole instance Define a static method where we can retrieve the object The method will check if the instance is created If it s not it will create it There are four different ways of implementing the Singleton Pattern let s take a look at each one of them Lazy Initialization of Singleton PatternOn this variant of the Singleton Pattern the instance is created until is requested by the getInstance method Before that there is no instance of the class This is helpful because we don t consume any resources if it s not necessary Let s see the following example public class LoggerSingletonLazy Sole instance private static LoggerSingletonLazy instance Private constructor private LoggerSingletonLazy Gets the LoggerSingletonEeager instance return public static LoggerSingletonLazy getInstance Checks if instance is created if it s not if if instance null instance new LoggerSingletonLazy return instance To apply the Singleton Pattern on the LoggerSingletonLazy class we did the following We defined a private constructor so that it cannot be instantiated outside the class itself We defined a static variable where we ll store the sole instance of the LoggerSingletonLazy class We defined a static method where we can retrieve the sole instance of the class If there is no instance on the first call the method will create the object and return it We can test if the LoggerSingletonLazy class is returning the same object public class App public static void main String args LoggerSingletonLazy firstLog LoggerSingletonLazy getInstance System out println First Log Instance firstLog hashCode LoggerSingletonLazy secondLog LoggerSingletonLazy getInstance System out println Second Log Instance secondLog hashCode LoggerSingletonLazy thirdLog LoggerSingletonLazy getInstance System out println Third Log Instance thirdLog hashCode We retrieve an instance of the LoggerSingletonLazy class in three different times and save it in three different variables We check the hash code to validate if the three variables point to the same object Let s see the output of this program First Log Instance Second Log Instance Thord Log Instance The three hash codes are the same so all the variables point to the same object Therefore the Singleton Pattern is correctly applied to the class Eager Initialization of Singleton PatternNow let s suppose we want to create an instance of the object on the application startup this is known as eager initialization It can be helpful for the initial configuration of an object Let s see an example of this public class LoggerSingletonEager Sole instance private static final LoggerSingletonEager INSTANCE Eager initialization static INSTANCE new LoggerSingletonEager Private constructor private LoggerSingletonEager String loggerName public static LoggerSingletonEager getInstance return INSTANCE The difference between this implementation and the previous one is that the object is created in the static method which is executed on the application startup On this implementation the getInstance method only retrieves and returns the instance created in the static method Singleton Pattern Thread SafeThere is a potential flaw with the previous designs Let s suppose that two different threads enter the getInstance method at the same time Both of them will detect that the instance variable is null so both will instantiate different objects This means that our getInstance method is not thread safe Let s change it public class LoggerSingletonThreadSafe Sole instance private static LoggerSingletonThreadSafe instance Private constructor private LoggerSingletonThreadSafe Thread safe method public synchronized static LoggerSingletonThreadSafe getInstance if instance null instance new LoggerSingletonThreadSafe return instance We use the synchronized keyword to make our getInstance method thread safe This means if two or more threads try to access the method at the same time they will have to do it one at a time Singleton Pattern Double Thread SafeMost of the time the getInstance method will just retrieve the object so there is no point in synchronizing the whole method We just need to synchronize the part of the method where the object is created Let s change it public class LoggerSingletonThreadSafeDouble Sole instance private static LoggerSingletonThreadSafeDouble instance Private constructor private LoggerSingletonThreadSafeDouble public static LoggerSingletonThreadSafeDouble getInstance if instance null synchronized LoggerSingletonThreadSafeDouble class instance new LoggerSingletonThreadSafeDouble return instance We only synchronized the part of the code where the object is created This is helpful on those objects where the getInstance method does different things besides just retrieving the object Conclusion The Singleton Pattern is handy when an object instantiation is resource expensive to perform or by requirement you must have a sole instance of a class No matter what the reason is remember that Singleton is just a best practice and it doesn t have to be your only solution when creating objects Just like any pattern learn first the specific cases where you can apply the pattern and then learn the syntax	2021-10-19 18:34:24
海外TECH	DEV Community	Top 7 Featured DEV Posts from the Past Week	https://dev.to/devteam/top-7-featured-dev-posts-from-the-past-week-152d	Top Featured DEV Posts from the Past WeekEvery Tuesday we round up the previous week s top posts based on traffic engagement and a hint of editorial curation The typical week starts on Monday and ends on Sunday but don t worry we take into account posts that are published later in the week Tis the season to contributeSuch a fantastic guide to contributing to Forem blackgirlbytes There is great advice in here for open source contributing in general too If You re Reading This Contribute to Forem Rizel Scarlett for GitHub・Oct ・ min read hacktoberfest opensource github forem Sharing is caring zernonia is back with another fantastic challenge in this one you will create a minimalistic E commerce Website with the touch of modern UI based on a design provided for you I Design You Build Frontend Challenge Zernonia・Oct ・ min read webdev beginners javascript idesignyoubuild Hacktoberfest Start here It might be well into Hacktoberfest but there s still time to contribute If you have any questions or hesitations this article by ruphaa is a fantastic resource An Evergreen Guide to Hacktoberfest Ruphaa・Oct ・ min read hacktoberfest beginners opensource Dockerfile maintainability amp securityThanks for these awesome Dockerfile best practices ynuchy Easy to Follow Best Practices for Writing Dockerfile Takashi Yoneuchi・Oct ・ min read docker security codereview beginners Up to dateAs jesusantguerrero says dealing with dates and time as a human being is hard enough ーand it s even harder as a software developer In this post you ll find out why and how to deal with this issue Dealing with timezones in web development Jesus Guerrero・Oct ・ min read javascript webdev programming It s a loud world If there s one thing I want people to get out of this it s that I m a whole human You don t get all the benefits of autism without the drawbacks and the drawbacks make you no less valid of love and acceptance baweaverYou don t want to miss this article folks Tales of the Autistic Developer Loud Loud World Brandon Weaver・Oct ・ min read autism mentalhealth Career revampI ll leave you with something supremely inspiring by rinaarts How I got my career back on track rinaarts・Oct ・ min read career That s it for our weekly wrap up Keep an eye on dev to this week for daily content and discussions and if you miss anything we ll be sure to recap it next Tuesday	2021-10-19 18:13:20
Apple	AppleInsider - Frontpage News	How to move data to a new MacBook Pro	https://appleinsider.com/articles/21/10/19/how-to-move-data-to-a-new-macbook-pro?utm_medium=rss	How to move data to a new MacBook ProApple has a Migration Assistant app to help you move your data to a new MacBook Pro except it isn t always smooth isn t always easy ーand isn t your only choice Apple tries to make it easy to move your data to a new MacIf only Macs were as easy to transition between as iPhones When you upgrade an iPhone you put the new one next to the old and it practically transfers itself Read more	2021-10-19 18:22:15
Apple	AppleInsider - Frontpage News	Google launches Pixel 6, Pixel 6 Pro with Tensor processor	https://appleinsider.com/articles/21/10/19/google-launches-pixel-6-pixel-6-pro-with-tensor-processor?utm_medium=rss	Google launches Pixel Pixel Pro with Tensor processorGoogle has launched its Pixel and Pixel Pro smartphones complete with its self designed Tensor chip and a megapixel Octa PD Quad Bayer wide camera Previously teased by the search giant during Google I O and at the start of October the event for the Pixel and Pixel Pro launch on Tuesday had Google providing firm details and specifications for its new smartphone lineup The Pixel sports a inch display with a by resolution OLED panel complete with a aspect ratio and ppi pixel density Protected by Corning Gorilla Glass Victus cover glass the screen has a contrast ratio greater than with HDR support and Hz refresh rate Read more	2021-10-19 18:06:46
海外TECH	Engadget	Google turns those annoying call center menus into easy-to-navigate screens	https://www.engadget.com/google-assistant-call-hold-181236423.html?src=rss	Google turns those annoying call center menus into easy to navigate screensIn addition to the new Pixel and Pixel Pro Google also released more details about new capabilities that its Tensor chip enables One of them is a much more intelligent way of handling those calls to businesses that sometimes have you waiting hours on end just to speak to a representative Now the Pixel will show you the current and projected wait times before you even place a call so you can call when it works for you nbsp Additionally when you do call and encounter an endless list of options like quot Press for branch location and hours quot if you re calling a bank you don t need to remember all of them carefully Instead Google will listen to them for you and show the automated menu options on the screen for you to tap nbsp This is in addition to a quot Hold For Me quot feature Google introduced last year Instead of having to stay on the line Google Assistant will remain on the call for you It understands the difference between a recorded message and an actual representative on the line When a real life person is finally on it ll alert you to take the call nbsp Catch up on all the latest news from Google s Pixel event	2021-10-19 18:12:36
海外TECH	Engadget	Google shows off new security hub and privacy dashboard for Pixel 6	https://www.engadget.com/pixel-6-security-hub-privacy-dashboard-180603530.html?src=rss	Google shows off new security hub and privacy dashboard for Pixel Google is ramping up its security and privacy features with the Pixel The company showed off new security hub and privacy dashboard features that will make it easier to control important settings The security hub provides an at a glance overview of security settings such as whether or not your phone has the latest security updates installed or if you ve set a fingerprint or PIN to unlock your device Importantly it can also keep tabs on the apps you ve installed and can identify ones that are potentially “harmful At the top of the security hub is an indicator that will alert users if any settings need attention A green checkmark indicates all is well while a yellow exclamation mark will appear if something needs to be addressed Google also showed off new indicators to make it easier to tell when an app is using the phone s camera or microphone feeds Much like the notifications in iOS an indicator will light up at the top right corner of the display when the phone s mic or camera feeds are in use and users will have the ability to kill access for specific apps GoogleLikewise the new privacy dashboard makes it easier to track which data apps have access to and how each app is using its permissions to access information like location data As with the security hub Google has previously made much of this information available within Android already but it was often buried several layers into the settings menu so having it all in a single dashboard should make it easier for most users to find Google also said it s beefed up its anti spam and phishing protection features and Pixel will be able to provide warnings when it detects potential shady phone calls texts emails and links It s not yet clear if or when the company plans to bring these features to more devices than just its Pixel lineup The company said during its event that the privacy dashboard and security hub would be “coming first to Pixel so the features could eventually make their way to more Android devices in the future	2021-10-19 18:06:03
海外TECH	Engadget	Quick Tap to Snap is a Pixel 6-first camera shortcut for Snapchat	https://www.engadget.com/pixel-6-quick-tap-to-snap-snapchat-180058754.html?src=rss	Quick Tap to Snap is a Pixel first camera shortcut for SnapchatIn addition to camera features like Magic Eraser Google s Pixel and Pro phones will have something special for Snapchat users Snap CEO Evan Spiegel joined the company s Pixel event on Tuesday to announce Quick Tap to Snap The gesture allows you to access the Snapchat camera by tapping the back of the Pixel or Pro twice Quick Tap launches the app into camera only mode directly from the lockscreen Once you ve captured a Snap you ll need to authenticate your identity to access the rest of the app nbsp Spiegel said Quick Tap to Snap makes the Pixel and Pro the fastest phones for capturing Snaps He also said the company is working with Google to bring other Pixel exclusive features like Live Translate to Snapchat Once available it will allow you and your friends to converse in different languages with real time translations The two companies are also working together to launch exclusive augmented reality lenses Spiegel described Quick Tap to Snap as a quot Pixel first quot feature suggesting it will make its way to other devices at a later date But securing an exclusive Snapchat feature even if it s only a timed one is still a big win for Google A lot of Snapchat users many of whom are teens prefer the iPhone for the simple reason that the app works best on iOS If this is the start of a better Snapchat experience on Android it could do a lot to change that dynamic nbsp nbsp nbsp nbsp nbsp Catch up on all the latest news from Google s Pixel event	2021-10-19 18:00:58
海外TECH	Network World	Gartner: 8 security trends facing the enterprise	https://www.networkworld.com/article/3637123/gartner-8-security-trends-facing-the-enterprise.html#tk.rss_all	Gartner security trends facing the enterprise More about edge networking How edge networking and IoT will reshape data centers Edge computing best practices How edge computing can help secure the IoT As organizations become less centralized they face new security challenges that require new ways of addressing threats that will change the basic fabric of network security according to Gartner analysts To read this article in full please click here	2021-10-19 18:02:00
海外科学	NYT > Science	Mix-and-Match Covid Boosters: Why They Just Might Work	https://www.nytimes.com/2021/10/19/health/covid-vaccine-mix-match.html	Mix and Match Covid Boosters Why They Just Might WorkThe F D A may authorize booster shots of vaccines different from the ones that Americans originally received The science behind the move is promising	2021-10-19 18:18:14
海外科学	NYT > Science	Tuberculosis, Like Covid, Spreads by Breathing, Scientists Report	https://www.nytimes.com/2021/10/19/health/tuberculosis-transmission-aerosols.html	route	2021-10-19 18:14:54
ニュース	BBC News - Home	Covid: No 10 'keeping a close eye' on rising cases	https://www.bbc.co.uk/news/uk-58973185?at_medium=RSS&at_campaign=KARANGA	england	2021-10-19 18:42:45
ニュース	BBC News - Home	Duchess of Cambridge warns addiction can happen to anyone	https://www.bbc.co.uk/news/uk-58970448?at_medium=RSS&at_campaign=KARANGA	rates	2021-10-19 18:31:18
ニュース	BBC News - Home	Inflation: Food price rises are terrifying, warns industry	https://www.bbc.co.uk/news/business-58962049?at_medium=RSS&at_campaign=KARANGA	manufacturers	2021-10-19 18:35:01
ニュース	BBC News - Home	Morrisons: Shareholders approve £7bn takeover deal	https://www.bbc.co.uk/news/business-58962054?at_medium=RSS&at_campaign=KARANGA	equity	2021-10-19 18:26:37
ニュース	BBC News - Home	Teenager Palmer among goals as superb Man City beat Club Bruges	https://www.bbc.co.uk/sport/football/58958577?at_medium=RSS&at_campaign=KARANGA	Teenager Palmer among goals as superb Man City beat Club BrugesRiyad Mahrez scores twice and Cole Palmer gets his first Champions League goal for Manchester City as Pep Guardiola s side put in a superb performance to beat Club Bruges	2021-10-19 18:46:23
ニュース	BBC News - Home	Scotland one win away from T20 World Cup qualification	https://www.bbc.co.uk/sport/cricket/58968444?at_medium=RSS&at_campaign=KARANGA	world	2021-10-19 18:14:46
ビジネス	ダイヤモンド・オンライン - 新着記事	家族信託は「究極の節税対策」か、得するスキームと意外な落とし穴とは - 相続＆節税「損する人・得する人」	https://diamond.jp/articles/-/284782	落とし穴	2021-10-20 03:55:00
ビジネス	ダイヤモンド・オンライン - 新着記事	半導体不足の時代、自動車販売はチャットで値引き交渉なし - WSJ PickUp	https://diamond.jp/articles/-/285205	wsjpickup	2021-10-20 03:50:00
ビジネス	ダイヤモンド・オンライン - 新着記事	電力の鬼・松永安左ヱ門が説いた、中央集中化を排した新しい国造り - The Legend Interview不朽	https://diamond.jp/articles/-/284730	電力の鬼・松永安左ヱ門が説いた、中央集中化を排した新しい国造りTheLegendInterview不朽年、長崎県壱岐島に生まれた松永安左ヱ門年月日年月日は、年に慶應義塾に入学、福沢諭吉から直接薫陶を受けるとともに、諭吉の娘婿・福沢桃介との縁を深め、共同で福松商会を創業する。	2021-10-20 03:45:00
ビジネス	ダイヤモンド・オンライン - 新着記事	供給網の目詰まりと高インフレは来年も継続＝WSJ調査 - WSJ PickUp	https://diamond.jp/articles/-/285206	wsjpickupwsj	2021-10-20 03:40:00
ビジネス	ダイヤモンド・オンライン - 新着記事	低成長時代入りする中国経済、改革との綱引きに - WSJ PickUp	https://diamond.jp/articles/-/285207	wsjpickup	2021-10-20 03:35:00
ビジネス	ダイヤモンド・オンライン - 新着記事	「新しい資本主義」で私たちの働き方はどう変わるか（前編） - ニュース3面鏡	https://diamond.jp/articles/-/285204	「新しい資本主義」で私たちの働き方はどう変わるか前編ニュース面鏡昨今数々の関連書籍が刊行され、関心が高まっているマルクスの『資本論』。	2021-10-20 03:30:00
ビジネス	ダイヤモンド・オンライン - 新着記事	「ダサい」「違和感がある」と評された新1万円札で考える、デザインの真の役割 - DESIGN SIGHT	https://diamond.jp/articles/-/285201	culturedoc	2021-10-20 03:25:00
ビジネス	ダイヤモンド・オンライン - 新着記事	定年年齢になったシニアが、仕事の“適性検査”を受けて気づいたこと - HRオンライン	https://diamond.jp/articles/-/284374		2021-10-20 03:20:00
ビジネス	ダイヤモンド・オンライン - 新着記事	「開成」の“質実剛健”を新時代へ！21世紀の学びを体現する新校舎群 - 中学受験のキーパーソン	https://diamond.jp/articles/-/283911	「開成」の“質実剛健を新時代へ世紀の学びを体現する新校舎群中学受験のキーパーソンここ数年、創立周年を迎える私立中高一貫校は多いが、周年ともなると数えるほどしかない。	2021-10-20 03:15:00
ビジネス	ダイヤモンド・オンライン - 新着記事	「1日8000歩、時に速歩で」コロナの時代の健康術 - カラダご医見番	https://diamond.jp/articles/-/284618	速歩	2021-10-20 03:10:00
ビジネス	ダイヤモンド・オンライン - 新着記事	パンを食べるとき、 育ちがいい人は決してやらないことは？ - もっと！「育ちがいい人」だけが知っていること	https://diamond.jp/articles/-/285098	諏内えみ	2021-10-20 03:05:00