投稿時間:2022-07-07 06:34:36 RSSフィード2022-07-07 06:00 分まとめ(34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
AWS	AWS Partner Network (APN) Blog	Building an Asset Tracking Solution Using LoRaWAN with Semtech LoRa Cloud and AWS IoT Core for LoRaWAN	https://aws.amazon.com/blogs/apn/building-an-asset-tracking-solution-using-lorawan-with-semtech-lora-cloud-and-aws-iot-core-for-lorawan/	Building an Asset Tracking Solution Using LoRaWAN with Semtech LoRa Cloud and AWS IoT Core for LoRaWANLoRaWAN is a leading protocol utilizing Semtech s LoRa long range communications technology for LPWAN in battery operated remote monitoring and control applications AWS IoT Core for LoRaWAN offers a fully managed LoRaWAN network server and delivers highly scalable reliable services for a wide variety of use cases Learn the core elements in an asset tracking application and how AWS and Semtech help lower the barrier for developers looking to deploy solutions	2022-07-06 20:35:39
AWS	AWS Security Blog	Extend AWS IAM roles to workloads outside of AWS with IAM Roles Anywhere	https://aws.amazon.com/blogs/security/extend-aws-iam-roles-to-workloads-outside-of-aws-with-iam-roles-anywhere/	Extend AWS IAM roles to workloads outside of AWS with IAM Roles AnywhereAWS Identity and Access Management IAM has now made it easier for you to use IAM roles for your workloads that are running outside of AWS with the release of IAM Roles Anywhere This feature extends the capabilities of IAM roles to workloads outside of AWS You can use IAM Roles Anywhere to provide a …	2022-07-06 20:04:19
AWS	AWS Security Blog	Extend AWS IAM roles to workloads outside of AWS with IAM Roles Anywhere	https://aws.amazon.com/blogs/security/extend-aws-iam-roles-to-workloads-outside-of-aws-with-iam-roles-anywhere/	Extend AWS IAM roles to workloads outside of AWS with IAM Roles AnywhereAWS Identity and Access Management IAM has now made it easier for you to use IAM roles for your workloads that are running outside of AWS with the release of IAM Roles Anywhere This feature extends the capabilities of IAM roles to workloads outside of AWS You can use IAM Roles Anywhere to provide a …	2022-07-06 20:04:19
Ruby	Rubyタグが付けられた新着投稿 - Qiita	Rails break if と next ifって何ですか？	https://qiita.com/tatsu0209/items/12cfe63cb110e15df273	nextif	2022-07-07 05:53:14
Docker	dockerタグが付けられた新着投稿 - Qiita	M1 Macでarm版JupyterをDockerで使う．	https://qiita.com/KazuhisaFujita/items/eea5731130f4619c2ae5	docker	2022-07-07 05:33:14
Ruby	Railsタグが付けられた新着投稿 - Qiita	Rails break if と next ifって何ですか？	https://qiita.com/tatsu0209/items/12cfe63cb110e15df273	nextif	2022-07-07 05:53:14
海外TECH	Ars Technica	Orders for Apple’s new M2 MacBook Air begin July 8	https://arstechnica.com/?p=1864489	apple	2022-07-06 20:21:46
海外TECH	Ars Technica	Researchers seem to stumble across an electrolyte for a sodium battery	https://arstechnica.com/?p=1864623	batterysodium	2022-07-06 20:11:26
海外TECH	MakeUseOf	6 Ways to Fix Microsoft Word Stuck on Saving Your Documents	https://www.makeuseof.com/fix-microsoft-word-stuck-saving-documents/	microsoft	2022-07-06 20:30:14
海外TECH	DEV Community	Functional programming vs OOP: Which paradigm to use	https://dev.to/educative/functional-programming-vs-oop-which-paradigm-to-use-1mpj	Functional programming vs OOP Which paradigm to useTraditional programming languages such as C FORTRAN Pascall are based on procedural programming This programming paradigm uses procedure calls where each procedure e g function or subroutine is a set of computational steps to follow It is accessible and easy to understand but when code gets longer or more complex making changes to one function can cause a cascade of bugs that can be a headache to trace back To avoid this spaghetti code computer architects formulated two relatively newer programming paradigms object oriented programming OOP and functional programming Each paradigm takes a very different approach to how code is structured In this article we ll break down what exactly each programming paradigm is and what it s typically used for Hopefully by the end you will have started to form some opinions of your own Let s get started We ll cover What is functional programming What is object oriented programming When to use OOP or functional programmingWrapping up and next steps What is functional programming Functional programming is centered around building software composed of functions similar to procedural programming however there are subtle differences We highlight these differences by discussing key concepts of functional programming below First class citizensFunctions are treated as primitives Primitives serve as the simplest elements of a programming language Thus a function can be stored in a variablepassed as an argumentreturned from a functionSince they have these capabilities functions are referred to as first class citizens The term first class citizen essentially notates an element that supports all other generally available operations Pure functionsA goal of functional programming is to write pure functions whenever possible A pure function does not change the global state of the program and therefore is said to have no side effects Instead its return value is solely based on its input parameters Pure functions enable numerous compiler optimizations leading to significantly reducing a program s execution time Furthermore pure functions are ideally suited for unit testing We can unit test a pure function in isolation without having to worry about where in the code it will be used Higher order functions and recursionInstead of iterative loop constructs such as for and while in functional programming we use higher order functions and tail calls for a recursive loop A higher order function takes a function as its input performs an operation on the input function and subsequently returns a function A tail call refers to a function call at the end of a function A tail call may result in a recursive loop when a function calls itself Many compilers perform tail call optimization a k a tail call elimination making recursion as fast as iterative loops Key reasons for preferring recursion over typical primitive loops are simplicity of codeavoiding mutable objects to make code more robust ImmutabilityImmutability is the permanence of a variable once the data is assigned to it No value assigned to a variable in functional programming can be changed the only way to change a value is to create a new variable It is immutability that enables functional programming to use pure functions These functions do not mutate their inputs and rely on nothing but the input to achieve results In this way functional programming is similar to math Functional programming was even created for an academic computer science setting through the Haskell language In summation functional programming is a declarative programming model that communicates what the program does without specifying the flow of control It uses pure functions immutable variables and tail call recursion This results in code that is easier to understand debug and unit test Furthermore functional programming enables numerous compiler optimizations for an increase in program execution speed and reduction in memory requirements What is object oriented programming In contrast to functional programming object oriented programming OOP is an imperative paradigm This means that the code describes how the program should achieve a result in a step by step process These statements procedurally change the program s state The term state in OOP refers to any set values plus the alterations made to them over the course of the program Object oriented programming groups related functions and their variables into objects In an object functions are referred to as methods and variables are referred to as properties For example this figure represents how OOP may represent a car as a group of properties and methods The four pillars of object oriented programmingA common question you may see in interviews is to identify the four pillars of OOP The four pillars are encapsulation abstraction inheritance and polymorphism It is important to recognize these tenets when studying object oriented programming as they are all interconnected Encapsulation the act of grouping related variables and functions into objects The creation of an object is based on a blueprint or template called a class Grouping functions and variables allows for functions to be called with few to no parameters as the variables are incorporated as a part of the object Abstraction hiding some of an object s properties and methods from outside observation Confining certain parameters and functions to an object ensures that any future changes made to the abstracted members of a class will have no impact on the rest of the classes Thus making extension and improvement of a program easier Inheritance an object can inherit some of the properties and methods of another object In Java this inheritance is notated by the keyword extend The parent class from which another class is extending is called a superclass or a base class For instance the Toyota and Ford classes may be extensions of the Car class Whereas Ford Mustang is an extension of the Ford class In this case common code to both Toyota and Ford can be written once in their superclass Car Thus inheriting existing properties and methods and adding new features to them reduces code redundancy and increases reusability Polymorphism means literally “many forms and refers to objects that respond in different ways to the same function Polymorphism is based on an object s relationships with other objects and how members of a superclass are being extended in its derived classes This again reduces redundancy and increases reusability Polymorphism is a complex concept if you are interested in learning more we encourage you to check out the Educative course Learn Object oriented programming in Java Each pillar of OOP is important in its own right but the pillars are dependent on one another Encapsulation is a necessary feature for abstraction and inheritance to be possible Additionally polymorphism cannot exist without inheritance Each of the four pillars is integral to the paradigm OOP as a whole functions through objects with self contained properties and methods and their relationships with other objects When to use object oriented or functional programmingSome programming languages only allow for one particular paradigm For example Haskell is by definition a functional programming language because its state cannot mutate Other primarily functional programming languages include Lisp F and Erlang Some OOP languages or languages that lean more toward the object oriented paradigm are Java C and C Several programming languages such as TypeScript and Python are multi paradigm and support both OOP and functional programming to some capacity These languages have certain allowances to utilize pure functions and immutable objects at the developer s will Python is one of the most popular languages and it represents a middle ground on this spectrum of mutable to immutable or object oriented to functional Python has built in types that are immutable strings numbers and Booleans to name a few Custom classes in Python however are typically mutable data With a language like Python it is almost entirely up to the programmer as to what paradigm they use primarily OOP is currently the paradigm used by most developers mostly for its accessibility Functional programming is great for the server side of applications data manipulation and web crawling For example all of Facebook s spam filtering was built using functional programming in Haskell For the most part there is no clear cut answer as to what paradigm will serve you best in your software development education and career Good software engineers use techniques and habits that can be prescribed to both object oriented programming and functional programming Even if you primarily code in an OOP environment it can benefit you to implement some functional programming constraints In doing so you may find that your code is clearer and easier to debug One of the biggest barriers to making an effective easy to use API is repetitive code so learning and practicing functional programming concepts now may pay dividends in the future When deciding what paradigm to develop a new program in it can be beneficial to create a roadmap for how the program may change in the future If your program has a set number of operations to be performed on entities and you intend to grow the application by adding more entities an object oriented approach makes the most sense If instead you have a fixed number of entities and intend to add more operations functional programming will create fewer problems during scaling Wrapping up and next stepsAt its simplest functional programming uses immutable data to tell the program exactly what to do Object oriented programming tells the program how to achieve results through objects altering the program s state Both paradigms can be used to create elegant code From an OOP perspective you may be sculpting something out of clay modeling it after the real world Through functional programming it more closely resembles stacking building blocks together to eventually create a cohesive piece So where should you go from here If you want help acing an object oriented programming job interview you can check out the course Grokking the Object Oriented Design Interview Happy learning Continue learning about functional programming and OOP on EducativeLearn Object Oriented Programming in JavaLearn Object Oriented Programming in JavaScriptLearn Functional Programming in Haskell Start a discussionDo you prefer functional programming or OOP Was this article helpful Let us know in the comments below	2022-07-06 20:08:39
海外TECH	DEV Community	Common Encoding and Decoding systems	https://dev.to/christianpaez/common-encoding-and-decoding-systems-1d02	Common Encoding and Decoding systemsSometimes data cannot be stored or presented in plain text due to security reasons For this it is very common to use encoding systems this consists of taking a piece of data like a letter or word and converting it into symbols that looks unreadable Decoding is the opposite process taking the encoded symbols and converting them back into something that s human readable Let s see some of the most common encoding and decoding systems used nowadays BaseThe idea behind this encoding is to use characters that are common across encoding systems and are also printable most common base variations use alphanumeric characters A Z a z for the first values and some combination of a plus sign a forward slash for the last characters and perhaps an equal sign for padding ExampleOriginal hello worldBase aGVsbGgdybGQ Hex Base In this system data is encoded in bit sequences using symbols from the ASCII character set most commonly used characters are letters A to F sometimes lowercase a f and the Arabic numerals or digits ExampleOriginal hello worldHex Base ccffca ROT Caesar Cypher More of a simple substitution shift that consists of taking an alphabet letter and replacing it with a letter positions down the alphabet other numbers of positions can be used this is also known as the Caesar Cypher since it was used by Julius Caesar in his private correspondence in ancient Rome ExampleOriginal hello worldROT uryyb jbeyqThese encodings are commonly used in web development cryptography and email encryption We hope this post can provide a basic understanding of these encodings and how they transform data Check out this post on Art of Code	2022-07-06 20:05:57
Apple	AppleInsider - Frontpage News	Apple working on 'extreme sports' Apple Watch with bigger screen, rugged case	https://appleinsider.com/articles/22/07/06/apple-working-on-extreme-sports-apple-watch-with-bigger-screen-rugged-case?utm_medium=rss	Apple working on x extreme sports x Apple Watch with bigger screen rugged caseApple is reportedly developing a new Apple Watch model with a larger display and a more rugged metal casing aimed at the extreme sports market Apple Watch Series renderThe new Apple Watch will get a screen that measures nearly two inches on the diagonal amounting to more display area than current Apple wearables Bloomberg reported Wednesday Read more	2022-07-06 20:44:49
海外TECH	Engadget	Grab 'The Matrix Awakens' Unreal demo before it's delisted on July 9th	https://www.engadget.com/epics-the-matrix-awakens-gets-delisted-on-july-9th-203902046.html?src=rss	Grab x The Matrix Awakens x Unreal demo before it x s delisted on July thTime is running out to download Epic Games The Matrix Awakens The free open world interactive demo made with Unreal Engine will be removed from the PlayStation and Xbox stores on July th Luckily players can still access the game an unlimited amount of times once it s downloaded The tie in experience to The Matrix Resurrections nbsp debuted last year and was one of the first examples of what Epic s next generation game engine can do UE has since been released to the wider developer community While The Matrix Awakens isn t a full game it s still a memorable introduction to UE s immersive visuals and natural lighting Players are essentially given free rein to roam through the titular Matrix and soak in the visual effects The game was written by Lana Wachowski the co writer and director of The Matrix trilogy films and features performances by both Carrie Anne Moss and Keanu Reeves If you ve already dipped your toe into the world of The Matrix Awakens and are interested in experiencing more games using UE a number of new titles have been announced including a new Tomb Raider game ARK the upcoming Witcher game and Black Myth Wukong You can check out gameplay footage from The Matrix Awakens available on PlayStation or Xbox Series X S console below	2022-07-06 20:39:02
Cisco	Cisco Blog	CCIE Party, Cisco Live 2022: Reunited and It Feels so Good	https://blogs.cisco.com/learning/cisco-live-ccie-party-2022-reunited-and-it-feels-so-good	significance	2022-07-06 20:09:59
海外科学	NYT > Science	Bird Flu May Have Caused Seal Strandings in Maine	https://www.nytimes.com/2022/07/06/science/bird-flu-seals.html	Bird Flu May Have Caused Seal Strandings in MaineUnusually high numbers of the marine mammals were found stranded in the last two months along Maine s coast Samples from four seals tested positive for highly pathogenic avian influenza	2022-07-06 20:38:38
ニュース	BBC News - Home	Boris Johnson digs in amid growing cabinet mutiny	https://www.bbc.co.uk/news/uk-politics-62065534?at_medium=RSS&at_campaign=KARANGA	boris	2022-07-06 20:04:17
ニュース	BBC News - Home	Pound slides to two-year low against the dollar	https://www.bbc.co.uk/news/business-62053700?at_medium=RSS&at_campaign=KARANGA	economic	2022-07-06 20:48:26
ニュース	BBC News - Home	Who has gone, who is staying?	https://www.bbc.co.uk/news/uk-politics-62058278?at_medium=RSS&at_campaign=KARANGA	ministerial	2022-07-06 20:47:33
ニュース	BBC News - Home	England 1-0 Austria: Lionesses get off to winning Euro 2022 start	https://www.bbc.co.uk/sport/football/61970367?at_medium=RSS&at_campaign=KARANGA	trafford	2022-07-06 20:51:50
ニュース	BBC News - Home	Wimbledon: Nick Kyrgios beats Cristian Garin to reach semi-finals	https://www.bbc.co.uk/sport/tennis/62065861?at_medium=RSS&at_campaign=KARANGA	wimbledon	2022-07-06 20:48:50
ニュース	BBC News - Home	Wimbledon 2022: Rafael Nadal beats Taylor Fritz despite rib injury	https://www.bbc.co.uk/sport/av/tennis/62072151?at_medium=RSS&at_campaign=KARANGA	Wimbledon Rafael Nadal beats Taylor Fritz despite rib injuryRafael Nadal suffers through rib injury to come from behind and beat Taylor Fritz to reach the Wimbledon semi finals	2022-07-06 20:16:49
ビジネス	ダイヤモンド・オンライン - 新着記事	ホテル経営が危険な都道府県ランキング！3位北海道、1位は？ - ホテルの新・覇者	https://diamond.jp/articles/-/305771	帝国データバンク	2022-07-07 05:25:00
ビジネス	ダイヤモンド・オンライン - 新着記事	赤字から黒字へV字転換した企業は？コロナ復活度ランキング【ベスト60社】3位日本航空、1位は？ - 決算書100本ノック！2022夏	https://diamond.jp/articles/-/305321	日本航空	2022-07-07 05:20:00
ビジネス	ダイヤモンド・オンライン - 新着記事	SMBC日興証券のDX担当幹部が明かす、SBIと組んで「デジタル証券の取引所」を始める理由 - 金融DX大戦	https://diamond.jp/articles/-/305405		2022-07-07 05:15:00
ビジネス	ダイヤモンド・オンライン - 新着記事	サハリン2のLNGの「代替コスト」を独自試算、広島ガスらを“スポット地獄”が襲う - Diamond Premium News	https://diamond.jp/articles/-/306012	diamondpremiumnews	2022-07-07 05:10:00
ビジネス	ダイヤモンド・オンライン - 新着記事	伊藤忠・岡藤会長が教える、ビジネスの成功に必要な「2つのこと」 - 伊藤忠 財閥系を凌駕した野武士集団	https://diamond.jp/articles/-/303798	岡藤正広	2022-07-07 05:05:00
ビジネス	電通報 | 広告業界動向とマーケティングのコラム・ニュース	水谷隼と横澤夏子が『社歌コンテスト』参画！ “企業エンターテインメント”を進化させる視点とは？	https://dentsu-ho.com/articles/8251	nikkei	2022-07-07 06:00:00
ビジネス	電通報 | 広告業界動向とマーケティングのコラム・ニュース	印刷博物館が伝える印刷産業のコアコンピタンス	https://dentsu-ho.com/articles/8236	印刷博物館	2022-07-07 06:00:00
北海道	北海道新聞	ＮＹ株反発、６９ドル高　利上げへの警戒感和らぐ	https://www.hokkaido-np.co.jp/article/702664/	警戒感	2022-07-07 05:52:00
北海道	北海道新聞	３年ぶり牛追い祭りに熱狂　スペイン北部	https://www.hokkaido-np.co.jp/article/702661/	牛追い祭り	2022-07-07 05:42:00
北海道	北海道新聞	海の生き物、夜は何を？　鴨川シーワールドでツアー	https://www.hokkaido-np.co.jp/article/702660/	千葉県鴨川市	2022-07-07 05:42:00
北海道	北海道新聞	ナダル、キリオスが準決勝へ　ウィンブルドン第１０日	https://www.hokkaido-np.co.jp/article/702659/	準決勝	2022-07-07 05:22:00
ビジネス	東洋経済オンライン	イオンでも手こずるネットスーパー成功者の正体 三重県スーパーサンシに見る弱者･小者の戦い方 | ｢ガチンコ好敵手2社｣勝負の分かれ目 | 東洋経済オンライン	https://toyokeizai.net/articles/-/600065?utm_source=rss&utm_medium=http&utm_campaign=link_back	分かれ目	2022-07-07 05:40:00
ビジネス	東洋経済オンライン	車がない！国産／輸入車｢新車納期｣の切迫度 納期6カ月も当たり前になった自動車販売の今 | 販売・購入 | 東洋経済オンライン	https://toyokeizai.net/articles/-/601899?utm_source=rss&utm_medium=http&utm_campaign=link_back	当たり前	2022-07-07 05:20:00