投稿時間:2022-01-02 00:17:46 RSSフィード2022-01-02 00:00 分まとめ(19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
TECH	Engadget Japanese	『チルドレン・オブ・モルタ』レビュー、ど根性一家がダンジョンに挑むハクスラ｜ゲームレビュー2021	https://japanese.engadget.com/game-ps4-nintendo-switch-043040909-143018653.html	感情移入	2022-01-01 14:30:18
js	JavaScriptタグが付けられた新着投稿 - Qiita	JS 画像→グレースケール→ディザリング→点字アスキーアート	https://qiita.com/McbeEringi/items/7f25da1e5d8194f87c5b		2022-01-02 00:00:14
js	JavaScriptタグが付けられた新着投稿 - Qiita	Vue.jsのv-bindを使ってclass属性を書き換える	https://qiita.com/saraarai5454/items/bf0565a729b245a863a9	もし、successの部分をerrorに変更した場合は、文字の色が赤色になります。	2022-01-01 23:00:30
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	Reactでのファイルをアップするときの保存先	https://teratail.com/questions/376288?rss=all	今までで基本的なWebアプリは作ったことがあるのですが、ユーザがファイルをアップロードするような処理はしたことがなかったので、アップされたファイルをどこに保存すればよいのかわからない状態です。	2022-01-01 23:39:39
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	load_model()でモデルを呼び出し、predict_model()で予測を行いたい	https://teratail.com/questions/376287?rss=all	モデル予測に使用したcsvデータのイメージtestADを説明変数、Eを目的関数にしてモデルを予測。	2022-01-01 23:07:48
Azure	Azureタグが付けられた新着投稿 - Qiita	Azure Synapse Analytics(概要編)	https://qiita.com/himorishuhei/items/6d11f47095c049444a91	使用する状況データや分析ツールが分散されていることで手間を感じている従量課金額と要相談高度な分析が可能AzureSynapseAnalyticsの機能と、AzureDatabricksなどの他のサービスとの統合の両方を使用可能リアルタイム分析AzureSynapseLinkの機能やAzureStreamAnalytics、AzureDataExplorerなどのサービスの統合を通して、データをリアルタイムまたは準リアルタイムでキャプチャ、格納、分析が可能データの探索と検出が可能AzureSynapseAnalyticsによって提供されるサーバーレスSQLプール機能を使用すると、データ資産内のデータを探索することが可能。	2022-01-01 23:14:28
技術ブログ	Developers.IO	PLATEAUのオープンデータセットをダウンロードしてVSCodeで見てみた	https://dev.classmethod.jp/articles/downloaded-the-open-dataset-of-plateau-and-tried-to-visualize-it/	plateau	2022-01-01 14:50:55
海外TECH	DEV Community	The Full-Stack Developer Vocabulary(The Full List!)	https://dev.to/code_jedi/the-full-stack-developer-vocabularythe-full-list-4n5d	The Full Stack Developer Vocabulary The Full List Jamstack Docker DOM Serverless WTF is everyone talking about If you re new to this whole full stack development thing and get confused by some of the words people use when talking about full stack development then stick around because here I ll be compiling the most common words and phrases related to full stack development Of course it will take much more time to learn the details of each of the things I ll be mentioning Each of the words and phrases will be summarized to give you an idea of what these words and phrases mean so that you can understand what people are referencing with them when talking about certain areas of full stack development Part The essentials Front endThe part of an application or website with which the user interacts directly Back endThe part of an application or website with which the user cannot see or interact with directly Full stackThe entirety of an application or website comprising both the front end and the back end DOMThe Document Object Model DOM is a programming interface for web documents It represents the page so that programs can change the document structure style and content APIAPI stands for Application Programming Interface It s purpose is to provide a way for programs to easily access and exchange data EncryptionThe process of converting information or data into a code especially to prevent unauthorized access DecryptionWhile encryption converts information into a code the purpose of decryption is to convert the same information s code back to it s original form HTTPHypertext Transport or Transfer Protocol the data transfer protocol used on the World Wide Web HTTPSBasically the same as HTTP but uses encryption methods to secure the data passed to and from webpages CI CDCI CD stands for Continuous Integration Continuous Delivery and the purpose of CI CD systems is to deliver code changes to an application or website more frequently and reliably UIUI stands for User Interface UI developers try to make a website s interface easy to use and navigate UXUX stands for User Experience UX developers focus on making a website s design more appealing to it s visitors ServerlessAs written on the cloudflare blog Serverless computing is a method of providing backend services on an as used basis A serverless provider allows users to write and deploy code without the hassle of worrying about the underlying infrastructure A company that gets backend services from a serverless vendor is charged based on their computation and do not have to reserve and pay for a fixed amount of bandwidth or number of servers as the service is auto scaling Note that despite the name serverless physical servers are still used but developers do not need to be aware of them Backend operationsThese are operations that are performed in the backend because they re either too time or memory intensive for the front end or these operations simply cannot be performed in the frontend because they require libraries or frameworks that only work on the backend Request ResponseThe way the frontend and backend communicate with each other is with requests and responses A frontend script can request data from the backend and a script in the backend can then send that data as a response CacheThe cache is where data can be temporarily stored on a browser or computer in order to save time loading the same data over and over again every time it is required Command lineThe command line is an interface for typing commands directly to a computer s operating system This is the most direct and fastest way to perform operations on a computer s operating system like launching a PHP server creating directory executing scripts changing file permissions and much more Virtual machineA virtual machine is a computer system that emulates a physical remote machine in order to perform operations on that machine like hosting a website or storing data AWSAWS which stands for Amazon Web Services is currently the biggest provider of these virtual machines plus many other services like file storage DatabaseA database is a structured collection of data most of the time databases are needed for storing high volumes of user data Part The more advanced XMLXML stands for eXtensible Markup Language XML plays an important role in many different IT systems and is often used for distributing data over the Internet Read This article to get a better understanding of XML JSXJSX stands for JavaScript XML JSX allows you to write HTML in ReactJS JSONJSON is an acronym for JavaScript Object Notation It is an open standard format which is lightweight and text based designed explicitly for human readable data interchange It is a language independent data format It supports almost every kind of language framework and library FirewallA network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules IP AddressAn IP address is a unique string of characters that identifies each computer using the Internet Protocol to communicate over a network IP addresses come in types IPv and IPv IPvIPv IP version addresses are bit integers which will be expressed in decimal notation Example could be an IPv address IPv addresses are most common IPvIPv IP version is the improved version of IPv IPv addresses are more unique than IPv addresses and therefor offer more address variations In addition to offering more addresses IPv also implements features not present in IPv It simplifies aspects of address configuration network renumbering and router announcements when changing network connectivity providers Proxy ServerThis is a server that acts as an intermediate between a client and its destination server A proxy server can let you make web requests through a different IP address Proxies are most popularly used in VPNs and are useful if you want to hide your location personal data or your overall identity on the web VPNVPN stands for “virtual private network VPNs protect your internet connection and privacy online They create an encrypted tunnel for your data protect your online identity by hiding your IP address using proxy servers and allow you to use public Wi Fi hotspots safely NginxNginx pronounced like “engine ex is an open source web server used for processing web requests ApacheApache is the most widely used web server software similar to Nginx JamstackJamstack is an architecture designed to make the web faster more secure and easier to scale It builds on many of the tools and workflows which developers love such as ReactJS The core principles of pre rendering and decoupling enable sites and applications to be delivered with greater confidence and resilience than ever before SudoSudo standing for SuperUser DO is used to access restricted files and operations By default Linux systems restrict access to certain parts of the system preventing sensitive files from being compromised The sudo command temporarily elevates privileges allowing users to complete sensitive tasks without logging in as the root user Web ScrapingWeb Scraping is the process of extracting data from external websites Some of the most popular Web Scraping libraries include Puppeteer Selenium and BeautifulSoup GitGit is used for tracking changes in files and directories Git is usually used for coordinating work among developers collaboratively developing source code during software development Cron jobsCron jobs are jobs scheduled by the backend to run at set intervals Cron jobs are mostly used for managing back end jobs created by users through the front end Responsive Web DesignResponsive web design also referenced as RWD design is a modern web design approach that allows websites to render or display on all devices and screen sizes by automatically adapting to the screen whether it s a desktop laptop tablet or smartphone MySQLMySQL is a relational database management system RDBMS developed by Oracle that is based on structured query language SQL A database is a structured collection of data It may be anything from a simple shopping list to a picture gallery or a place to hold the vast amounts of information in a corporate network NoSQLNoSQL is famous for its high functionality and ease of development with a performance at scale NoSQL is called a non relational database It does not follow the rules of relational database management systems RDBMS and hence does not use traditional SQL statements to query data famous examples of NoSQL systems are MongoDB and NeoJ Environment variablesAn environment variable is a variable whose value is set outside a program typically through the operating system Environment variables eliminate the need to define and redefine variables through programs Part The languages tools and frameworks ReactJSYou ve probably heard a ton about React on dev to but what exactly is ReactJS React is currently the most popular javascript front end framework Developed by Facebook in React is used to build interactive user interfaces AngularJSAngular is a development platform built on TypeScript As a platform Angular includes A component based framework for building scalable web applicationsA collection of well integrated libraries that cover a wide variety of features including routing forms management client server communication and moreA suite of developer tools to help you develop build test and update your codeWith Angular you re taking advantage of a platform that can scale from single developer projects to enterprise level applications Angular is designed to make updating as straightforward as possible so take advantage of the latest developments with a minimum of effort DockerDocker is a software platform that allows you to build test and deploy applications quickly Docker packages software into standardized units called containers that have everything the software needs to run including libraries system tools code and runtime Using Docker you can quickly deploy and scale applications into any environment and know your code will run KubernetesKubernetes is a portable extensible open source platform for managing containerized workloads and services The name Kubernetes originates from Greek meaning helmsman or pilot Ks as an abbreviation results from counting the eight letters between the K and the s Google open sourced the Kubernetes project in Kubernetes combines over years of Google s experience running production workloads at scale with best of breed ideas and practices from the community RustRust is a statically typed programming language designed for performance and safety especially safe concurrency and memory management TensorFlowTensorFlow is an end to end open source platform for machine learning It has a comprehensive flexible ecosystem of tools libraries and community resources that lets researchers push the state of the art in ML and developers easily build and deploy ML powered applications SoliditySolidity is a statically typed curly braces programming language designed for developing smart contracts that run on Ethereum LaravelLaravel is a PHP framework with expressive elegant syntax It is the most popular PHP framework GoGo language is a programming language initially developed at Google in the year by Robert Griesemer Rob Pike and Ken Thompson It is a statically typed language having syntax similar to that of C It provides garbage collection type safety dynamic typing capability many advanced built in types such as variable length arrays and key value maps It also provides a rich standard library The Go programming language was launched in November and is used in some of Google s production systems jQueryjQuery is a fast small and feature rich JavaScript library It makes things like HTML document traversal and manipulation event handling animation and AJAX much simpler with an easy to use API that works across a multitude of browsers With a combination of versatility and extensibility jQuery has changed the way that millions of people write JavaScript AJAXAjax stands for Asynchronous Javascript And XML Ajax is just a means of loading data from the server and selectively updating parts of a web page without reloading the whole page Basically what AJAX does is it makes use of the browser s built in XMLHttpRequest XHR object to send and receive information to and from a web server asynchronously in the background without blocking the page or interfering with the user s experience Ajax has become so popular that you hardly find an application that doesn t use Ajax to some extent The example of some large scale Ajax driven online applications are Gmail Google Maps Google Docs YouTube Facebook Flickr and many more NodeJSNode js is an open source cross platform back end JavaScript runtime environment that runs on the V engine and executes JavaScript code outside a web browser Node js lets developers use JavaScript to write command line tools and for server side scripts to produce dynamic web page content before the page is sent to the user s web browser Consequently Node js represents a JavaScript everywhere paradigm unifying web application development around a single programming language rather than different languages for server side and client side scripts NPMNPM is two things first and foremost it is an online repository for the publishing of open source Node js projects second it is a command line utility for interacting with said repository that aids in package installation version management and dependency management A plethora of Node js libraries and applications are published on npm and many more are added every day These applications can be searched for on their website Once you have a package you want to install it can be installed with a single command CSSCascading Style Sheets CSS is a style sheet language used for describing the presentation of a document written in a markup language such as HTML CSS is a cornerstone technology of the World Wide Web alongside HTML and JavaScript CSS is designed to enable the separation of presentation and content including layout colors and fonts This separation can improve content accessibility provide more flexibility and control in the specification of presentation characteristics enable multiple web pages to share formatting by specifying the relevant CSS in a separate css file which reduces complexity and repetition in the structural content and enable the css file to be cached to improve the page load speed between the pages that share the file and its formatting GitGit is a software used for tracking changes in any set of files usually used for coordinating work among programmers collaboratively developing source code during software development Its goals include speed data integrity and support for distributed non linear workflows thousands of parallel branches running on different systems AWSAmazon Web Services Inc AWS is a subsidiary of Amazon providing on demand cloud computing platforms and APIs to individuals companies and governments on a metered pay as you go basis These cloud computing web services provide a variety of basic abstract technical infrastructure and distributed computing building blocks and tools One of these services is Amazon Elastic Compute Cloud EC which allows users to have at their disposal a virtual cluster of computers available all the time through the Internet AWS s virtual computers emulate most of the attributes of a real computer including hardware central processing units CPUs and graphics processing units GPUs for processing local RAM memory hard disk SSD storage a choice of operating systems networking and pre loaded application software such as web servers databases and customer relationship management CRM Google CloudGoogle Cloud Platform GCP offered by Google is a suite of cloud computing services that runs on the same infrastructure that Google uses internally for its end user products such as Google Search Gmail Google Drive and YouTube Alongside a set of management tools it provides a series of modular cloud services including computing data storage data analytics and machine learning Microsoft AzureMicrosoft Azure often referred to as Azure is a cloud computing service operated by Microsoft for application management via Microsoft managed data centers It provides software as a service SaaS platform as a service PaaS and infrastructure as a service IaaS and supports many different programming languages tools and frameworks including both Microsoft specific and third party software and systems SeleniumThe selenium package is used to automate web browser interaction from Python It is often used to make bots and web scrapers DjangoDjango is a high level Python web framework that encourages rapid development and clean pragmatic design Built by experienced developers it takes care of much of the hassle of web development so you can focus on writing your app without needing to reinvent the wheel It s free and open source That s it for The Full Stack Developer Vocabulary Have a nice	2022-01-01 14:49:12
海外TECH	DEV Community	JavaScript current year with getFullYear()	https://dev.to/nickfrosty/javascript-current-year-with-getfullyear-h1c	JavaScript current year with getFullYear Did you hard code the year in your footer New year new problems With this one liner you can dynamically set the year with JavaScript let year new Date getFullYear If you are using VueJS or NuxtJS you can add the current year code directly into your template section lt template gt lt footer gt Copyright new Date getFullYear lt footer gt lt template gt You can find more useful dev articles on my site frostbutter com articles	2022-01-01 14:27:58
海外TECH	DEV Community	Nulls and null checks - How to work safely with nulls in any codebase	https://dev.to/sargalias/nulls-and-null-checks-how-to-work-safely-with-nulls-in-any-codebase-1oeh	Nulls and null checks How to work safely with nulls in any codebaseAn important part of clean code is handling nulls properly Nulls have been a tricky problem in programming for decades Tony Hoare the inventor of the null even called it a billion dollar mistake Semantically nulls are necessary They represent the absence of a value For example a user may fill in a form that has optional fields They may leave the optional fields blank That s one reason for nulls The problem is that nulls can be difficult to work with and track The problem with nullsNulls are hard to track in a codebase There are many things which have properties that are nullcan return nullneed to check for null before doing somethingIf you miss a single null check you have a bug Your program might do the wrong thing or even crash For example here is some code that crashes if you forget to check for null first this function crashes if the argument is nullfunction foo arrayOrNull return arrayOrNull The code should have been like this instead function foo arrayOrNull if arrayOrNull null return null return arrayOrNull The issue is that being thorough with your null checks is very hard It s extremely difficult if not impossible to keep track of every null Solutions for working with nullsWorking with nulls is difficult To make things easier here are some possible solutions you could use Some of them are bad and some of them are good We ll go over each one The solutions are to place a null check around everythinguse try catch instead of null checksreturn a default value instead of nulluse the null object patternremember to check for every nulluse a type system that forces you to check for every nulluse something like the Option typeHere is each one in more detail Place a null check around everythingOne solution for dealing with nulls is to always check for them even when you shouldn t need to Check just in case After all It s better to have it and not need it than to need it and not have it George Ellis Right If this is your only way of ensuring that you don t miss null checks then maybe However it s not an optimal solution The problem is that something in your code might be null when it s not supposed to be In other words you have a bug But if you have null checks where they re not needed you ll silently ignore the bug It will be swallowed up in a null check For example car is never supposed to be nullif car null car getWheels In the code above car may be null when it s not supposed to be That s a bug However due to an unnecessary null check the program won t crash The bug will be silently ignored But if you didn t have the unnecessary null check the program would crash For example car is null due to a bug the program crashescar getWheels This is a good scenario As explained in how to respond to errors at the very least you want to know that you have a bug Crashing makes that clear but silently ignoring bugs doesn t In other words you should probably avoid unnecessary null checks Otherwise if you want to do defensive programming you can have the extra null checks However put in some code that records the bug if the thing is actually null That way you can debug the problem later For more information please see record errors to debug later Use try catch instead of null checksConditionals vs try catch is a debate that applies to all possibly invalid actions For this reason it s explained more thoroughly in control flow for invalid actions That aside try catch won t solve the problem You might forget to add try catch blocks just like you might forget null checks In this case your program could crash Worse an exception might be caught unintentionally by a different try catch block That s a silent bug Silent bugs tend to be worse than crashes Return a default value instead of nullAnother option is to avoid returning null Instead return a default value of the relevant type For example you might have a function that would normally return a string or a null Instead of null return the empty string Or you might have a function that would normally return a positive number or null Instead of null return or if isn t a suitable default Benefits of default valuesDefault values reduce the number of nulls in your code In some cases they also reduce the number of conditionals This happens when you can treat the default value and the normal value the same way For example this code works whether user name is a normal value or the empty string function printUserGreeting user const name user name const formattedName name toUppercase const greeting Hello formattedName document body append greeting But if user name was sometimes null the function would need a null check to work function printUserGreeting user const name user name if name null null check document body append Hello else const formattedName name toUppercase const greeting Hello formattedName document body append greeting Returning default values can be good However there are downsides Downsides of default valuesOne downside is that the semantic meaning of null isn t being honoured Semantically null means the absence of a value It doesn t mean a legitimate value In comparison the empty string or the number could be legitimate values or could be the result of a math calculation The empty string may be a delimiter provided to a function They don t mean the absence of data Another downside related to the first is that you lose information on whether the value represents null or a legitimate value Sometimes it s important to differentiate between the two You won t always be able to use the default value and a normal value in the same way For example consider JavaScript s Array prototype indexOf method It returns either a natural number or a positive integer or as a default value instead of null But in most situations you can never use the value You ll need a conditional to see if the method returned or a normal value This defeats the point From the point of view of your code it might as well have been null For example function findUser userArray targetUser const index userArray indexOf targetUser if index console log Sorry the user could not be found else console log The target user is user number index Another downside is that you might have many functions Each might need a different default value In this case you ll have a default value that works for one of them but not for the others Then the other functions will need conditionals to check for the default value Again this defeats the point It actually makes the code harder to work with Checking for null is easier than checking for magic values Just to finish off some other downsides are that coming up with a default value can be difficulttracing the origin of a default value in code can be difficult Verdict for default valuesTo summarize This is a solution which can be helpful to use However be careful of the downsides You ll need to use your own judgement for when to use this option Personally I don t use it too often But one default value that s often good to use is an empty collection For example an empty array or an empty hashmap This tends to have all of the benefits without the downsides That s because it s semantically correct to say yes this thing has a collection it just happens to be empty Also most code should be able to work with an empty collection in the same way as a non empty collection Use the null object patternThe null object pattern is similar to using default values mentioned above The difference is that it works with classes and objects rather than primitive values like strings and numbers and such It sets defaults for values attributes as well as behaviour methods You use the null object pattern by creating a null empty default object with the same interface as a normal object The attributes and methods of this object would have default values and behaviour For example here is a normal User class that you might have in your codebase class User constructor name id this name name this id id updateName name this name name doSomething code to do something Here is an example NullUser class that you might have a null object class NullUser constructor this name Guest default value this id default value updateName do nothing default behaviour doSomething do nothing or do some other default behaviour The usage in code would be something like this You might have some code that would normally return either null or a normal object Instead of returning null return the null object This is analogous to returning a default value For example the code below sometimes returns null function findUser userId const targetUser users find user gt user id userId if targetUser return null return user Instead you can have this code which returns a null object instead of null function findUser userId const targetUser users find user gt user id userId if targetUser return new NullUser return user Then whenever you use the null object or the normal object you don t need a null check To illustrate the point here some example code without the null object pattern class User is shown aboveconst users new User Bob new User Alice function findUser userId const targetUser users find user gt user id userId if targetUser return null return user function printName user if user null null check here document body append Hello Guest else document body append Hello user name function main const user findUser printName user Here is the same code except it uses the null object pattern classes User and NullUser are shown aboveconst users new User Bob new User Alice function findUser userId const targetUser users find user gt user id userId if targetUser return new NullUser instead of returning null return a null object return user function printName user no null check document body append Hello user name function main const user findUser printName user As for whether to use the null object pattern or not similar points apply as for default values Remember to check for every nullOne way to be thorough with all of your checks is to be thorough with all of your checks Every time you work on code be extremely careful with your null checks You should understand where null can appear and where it shouldn t appear where it would be a bug It s very difficult Sometimes it might feel impossible But that s what you have to do if you re not using other solutions Use a type system that forces null checksType systems to the rescue Some programming languages such as TypeScript with its strictNullChecks option understand when something could be null Then they force you to check Another example is C with its nullable reference types These warn you to check they don t force you but that s still helpful This means that you can never forget to check for null Personally I think that this is a great option Use the Option typeThe final option no pun intended is to use something like the Option type also known as the Maybe type This doesn t completely eliminate null checks But it reduces them a lot Also the few remaining null checks are in places where they re easy to work with It s very difficult to forget to put them in With the Option type you have two null checks instead of a countless number of them The null checks are in the Option type itselfthe first function to return an Option typeHere s a very simplified implementation of the Option type class Option constructor nullOrNormalValue this value nullOrNormalValue map fn if this value null return this const newValue fn this value return new Option newValue To do something with the Option type you use the map method and pass in a function This should be familiar if you ve ever used a map function for arrays and such The key point here is that the null check is inside the Option type In other words every single time you try to use that value you get a null check for free This means that as long as you re working with the Option type you can never forget your null checks You also need a null check or some other conditional in the place where you ll return an Option for the first time For example here s a normal function that would normally return null or a normal value function getNextScheduledEvent user if user scheduledEvents length return null return user scheduledEvents Here is the same function but now it returns an Option function getNextScheduledEvent user if user scheduledEvents length return new Option null return new Option user scheduledEvents After writing that code you don t need any more null checks for the returned value For example here s what the code would look like without Option function getNextScheduledEvent user if user scheduledEvents length return null return user scheduledEvents function foo nextScheduledEvent if nextSceduledEvent null null check do nothing else stuff function bar nextScheduledEvent if nextSceduledEvent null null check do nothing else stuff function baz nextScheduledEvent if nextSceduledEvent null null check do nothing else stuff function main const user scheduledEvents const nextEventOption getNextScheduledEvent user const a foo nextScheduledEvent const b bar nextScheduledEvent const c baz nextScheduledEvent Notice that every function needs a null check Here is the same code using Option function getNextScheduledEvent user if user scheduledEvents length return new Option return new Option user scheduledEvents function doubleEventPrice event no null check return event price event function foo event stuff no null check function bar event stuff no null check function main const user scheduledEvents const nextEventOption getNextScheduledEvent user const a nextEventOption map doubleEventPrice const b nextEventOption map foo const c nextEventOption map bar Notice the lack of null checks Of course this is a very simplified explanation There is much more to using the Option type A real implementation of Option would also be more much more complicated Which option should you use We covered a lot of methods for dealing with nulls It s up to you to choose the appropriate one for your codebase You need to weigh the pros and cons of each You also need to consider your preferences Personally I love the type system enforced null checks Along with those I might use default values or the null object pattern sometimes As of the time of writing I haven t used the Option type very much However many people are passionate about that one It seems like a great solution If you want leave a comment below about which method you recommend and why Final notesSo that s it for this article I hope that you found it useful As always if any points were missed or if you disagree with anything or have any comments or feedback then please leave a comment below Alright thanks and see you next time CreditsImage credits Single box Photo by Christopher Bill on UnsplashTwo boxes Photo by Karolina Grabowska from PexelsSticky note Photo by AbsolutVision on UnsplashPointing to laptop Photo by John Schnobrich on Unsplash	2022-01-01 14:24:28
海外TECH	DEV Community	CryptoPals Crypto Challenges Using Rust: Detect single-character XOR	https://dev.to/thenvn/cryptopals-crypto-challenges-using-rust-121o	CryptoPals Crypto Challenges Using Rust Detect single character XORThis is Challenge of Cryptopals challenges implemented in Rust language Context This challenge is same as Challenge except that instead of giving a single cipher text string we re given many cipher strings per line in given challenge file One of which has been encrypted by single character XOR We have to find which one amp decrypt the message I d highly recommend checking out Challenge first if you haven t yet You might ve guessed what we re going to do We ll do exactly same as previous challenge by trying to decrypt the cipher text by brute forcing with every char till we find one with best looking letter frequency score except we re going to do it with every cipher text line However in this case we ll be accumulating best score across all cipher texts Only the message which was actually encrypted by single char XOR would make sense as English text after decryption So it should yield best score Crack Code would be very identical to previous challenge except we added another loop for going through cipher text line in given input file use hex use std fs File use std io BufRead BufReader pub fn detect message path amp str gt String let mut message String new let mut best score f f MIN let file File open path expect Error reading file let lines BufReader new file lines let mut line String let mut key u for line result in lines line line result unwrap for c in key c as u let msg bytes Vec lt u gt hex decode amp line trim unwrap iter map amp b b as u key collect let msg String from utf amp msg bytes unwrap let score calc letter freq score amp msg if score gt best score best score score message String from msg message Note that we re using same letter frequency score calculation function calc letter freq score from previous challenge const LETTER FREQ f A G H N O U V Z amp space char pub fn calc letter freq score s amp str gt f let mut counts vec u let mut score f f s chars for each c match c a z gt counts c as usize A Z gt counts c as usize gt counts gt for i in score counts i as f LETTER FREQ i score And we ve cracked the message yet again See the code on GithubFind me on Twitter heyNvNnaveeen com	2022-01-01 14:20:11
海外TECH	Engadget	Tech that can help you stick to your New Year’s resolutions	https://www.engadget.com/tech-to-help-you-stick-to-new-years-resolutions-150034002.html?src=rss	Tech that can help you stick to your New Year s resolutionsRegardless of how went for you is another chance for all of us to make the new year better than those that came before it We set New Year s resolutions with the best of intentions but it s no wonder that so many people fail after just a few weeks old habits die hard Just as it s important to have a supportive group of people cheering you on during those particularly hard days it s also important to have tools that make it easier to achieve your goals Whether you re trying to get healthy be more organized or read more there are tech tools that can make your journey a bit easier and maybe even more enjoyable Fitness trackerFitbitA fitness tracker can help kickstart your exercise journey by passively monitoring your wins and showing you daily data about your steps sleep patterns and more Fitbit s Inspire is an all around good option not only because it s fairly affordable at but because it does pretty much everything a beginner would need a fitness tracker to do It tracks daily steps calories heart rate sleep and more and it comes with goal based exercises that you can manually track or let the device s automatic SmartTrack feature monitor for you It also has day battery life so you rarely have to take it off to charge it And with built in Tile functionality you ll be able to more easily find the device if you do misplace it SmartwatchCherlynn Low EngadgetIf you d rather invest in an all purpose wearable that also has serious fitness chops the Apple Watch SE is a good choice While it doesn t include some of the bells and whistles that the Series does it still fferes the same core experience as any Apple Watch It tracks all day activity and heart rate and watchOS finally does basic sleep tracking too In addition to built in GPS for outdoor workouts it supports dozens of trackable exercises along with fall detection and high and low heart rate notifications The Apple Watch also excels over basic fitness trackers when it comes to table stakes smartwatch features You ll be able to send and receive text messages from the device as well as control music playback smart home devices and more Workout classesmillann via Getty Images If running isn t your thing or it s just inconvenient to do it where you live finding exercise classes that you enjoy can make working out a habit you re more likely to stick with for the long haul You may prefer to do this through your local gym ーthat push to get out of the house and into a dedicated exercise space can be really effective for some ーbut there are plenty of online fitness classes as well that you can participate in from the comfort of your living room I ve tried my fair share of these services and my favorite has been Peloton No you don t need one of the company s expensive bikes or treadmills to take advantage of their classes Access to the app only version of the subscription costs per month and it lets you take HIIT strength yoga and even outdoor running classes many of which require little to no equipment at all If you can t afford another monthly subscription fee the internet has tons of free exercise resources ーyou just have to work a little harder to find the ones you jive with most I highly recommend Fitness Blender a free website where you can watch hundreds of workout videos and even set a schedule for yourself assigning videos to specific days of the week I like the quality and consistency of their videos but you may connect more to YouTube workout videos if they re taught by instructors you like Heather Robertson and Move with Nicole are two personal favorites Habit trackerForestAt least in the beginning keeping track of new habits you re trying to build can help you stick to them While you can get deep into this subject if you wander down the bullet journal rabbit hole a habit tracking app is probably the easier option Done and Strides are two iOS options that let you log when you ve completed a new habit you re trying to build or when you avoided a bad habit that you re trying to break You can get pretty granular customizing how often you want to do a task setting reminders to log reviewing stats and more However both apps have paid tiers to which you ll be asked to subscribe after you create a few trackable habits If you d rather avoid yet another subscription consider an app like Streaks which can be all yours for a one time fee of As for Android Grow is a free app that takes a similar approach to habit tracking that Forest takes with time management Plant a virtual tree for each new habit tracked and watch it grow every time you log a completion There s also Habitica which turns habit tracking to an bit RPG game in which your custom avatar levels up every time you log a task To do and note taking appsThings The new year provides an opportunity to get back on track and one way to do that is by finding organizational tools that work for you ーand making sure those tools are as uncomplicated as possible The worst thing that could happen is that your to do list or note taking system ends up being so cumbersome that you avoid using it Keeping all of your necessary tasks in your head may work on easy days but it can quickly get overwhelming when you have a million things to handle in both your personal and professional life I m a fan of Things for iOS and macOS because it s detailed enough for big work projects but simple enough for casual personal tasks I also love the Today view which shows me everything across all of my projects that requires immediate attention However you ll spend to get Things for iOS iPadOS and macOS ーand it s only available for Apple devices Microsoft s To Do is an alternative that while less involved than Things is free and works on almost every platform including iOS Android and Windows among others You can keep it simple and just have a task list and a grocery list or you can go deeper and add due dates sub tasks and even share lists with family members And if you don t want to bother with an extraneous app you can always opt for the reminders app that most likely came preinstalled on your phone That would be Reminders for iOS users and Google Keep for Android users Google Keep also doubles as a note taking app which will be a better solution if you ve been constantly jotting down ideas for new projects on Post It notes or scraps of paper that you eventually lose Apple Notes is the default option for this on iOS devices and there are plenty of other note taking apps out there as well I m partial to Evernote simply because it s become my digital file box of sorts I take notes in it almost every day but tons of things like online order receipts messages from my doctor s office and e signed contracts all come to me through my email and eventually get saved and tagged in Evernote so I can easily find them in the future Password managerPassword If you re looking to up your organization game in the new year a password manager is a great place to start I m partial to Password but there are plenty of other options including LastPass which has a free version Bitwarden and Dashlane After saving all of your passwords for various accounts you only need to remember one hence the name to log in to your Password account and access all of the others The service has browser extensions Chrome Edge and others that will let you seamlessly log in with the proper credentials with just a few clicks and Password has apps for most platforms including iOS and Android so you can use it on all of your devices I also appreciate the Password Generator feature which helps you create a new secure password whenever one of yours has expired LassPass has this too and Dashlane even has a free tool that anyone can use to make more secure passwords Not only does this take the onus of coming up with a strong key off your shoulders but it also makes it easy to override old credentials with new ones Travel tech organizerBellroyOne of the consequences of the past two is the dual office life Many of us now work both from home and from an office and the last thing you want to do when you arrive in either place is rummage around your backpack only to realize that you ve left your mouse charging cable or dongle at your other desk An organizer bag can prevent this before it happens we re partial to BagSmart tech organizers thanks to their utilitarian water repellent designs and their multiple pockets and dividers They also come in different sizes so you can pick the best one for your commuter bag If you want something a bit more elevated Bellroy s Desk Pouch is a good option It s pricier but for the money you get a more elegant design with a higher quality material recycled nylon weave or ripstop depending on the color you choose and a structured base that keeps the bag upright on your desk Computer docking stationCalDigitIt s all too easy for your work from home setup to get really messy really quickly When you re going through your busiest times at work the last thing you re thinking about is cable management but dedicating a bit more effort into tidying up your workspace can make your day to day more efficient and more enjoyable We recommend some sort of docking station to keep your laptop monitors accessories and the like in check A couple good options are CalDigit s TS Plus and Plugable s Universal Docking Station The former has a compact rectangular design with a total of different ports on it including a Gigabit Ethernet jack five USB A connections two Thunderbolt sockets and analog audio in out ports The latter stands up vertically on your desk and has connectors including HDMI and DVI ports six USB A connections and a Gigabit Ethernet jack That DVI port may be a deciding factor for you depending on which monitor you have and Plugable s device comes with both DVI to HDMI and DVI to VGA adapters While both of those options are stationary there are plenty of adapters out there that can give you similar organization while on the go albeit in a less elegant package Anker s USB C hub is an affordable solution that includes an HDMI port microSD and SD card readers two USB C connections and two USB A ports It also supports W power pass through so you can charge your laptop through the hub while using it Instant PotInstant Pot Best Buy Eating healthier ーor even just avoiding takeout multiple times a week ーcan be challenging in part because it usually means cooking more at home Not only is that hard to do when you re starting from zero but it s especially tough because it takes more time than ordering in from your phone But tools like an Instant Pot can make the process easier because it cuts your active cooking time down drastically You can find a plethora of recipes in which you simply throw a bunch of ingredients into the pot set it and forget it until it s time to eat We recommend the Instant Pot Duo for beginners because it s relatively affordable and combines seven different cooking methods into one appliance including rice cooking steaming pressure cooking slow cooking and more If you re primarily cooking for yourself and a partner the three quart model will serve you just fine but we recommend the six quart model if you re routinely cooking for four or more If the thought of cooking at home actually excites you rather than fills you with anxiety consider the Instant Pot Ultra which includes a few extra modes like cake maker and egg cooker or the Instant Pot Duo Crisp which includes an air fry lid Recipe organizationRichLegg via Getty Images One of the best things about cooking at home is finding recipes that you love so much that you want to make over and over again You ll want to keep those recipes safe and readily available so you can refer to them when you need a quick weeknight meal or a dish to bring to your next family reunion Recipe cards are a great way to do this and you ll build up your rolodex of delicious meals over time If you d rather have a cookbook of sorts that you fill in yourself over time opt for a recipe book instead If you d rather keep your arsenal of recipes accessible at any time anywhere from your phone Paprika s recipe management app is the best solution I ve tried The app basically acts as your digital recipe box allowing you to enter recipes of your own as well as download them from the internet You know those hundreds of words that precede online recipes in which the author divulges their entire life story before telling you their secret to making deliciously moist cornbread Paprika strips all of those unnecessary bits out and only saves the ingredient list and the instructions You can also make grocery lists and keep track of pantry staples in the app so don t be surprised if it quickly becomes one of your most used kitchen tools Reading appScribdDon t take your habit of doom scrolling on Twitter for hours every day into the new year You could instead use the internet to find other things to read and the free Libby app is a good place to start Powered by Overdrive it connects you with your local library s digital collection allowing you to borrow and download all kinds of e books audiobooks magazines graphic novels and more Libby also has a tag system that you can use to “save titles for later without actually putting a hold on them although you can do that in the app too If you find a bunch of audiobooks you eventually want to get to you can give them all a “TBR tag so you can quickly find them and borrow one when you need new reading listening material As someone who uses Libby on a regular basis I love how easy it is to borrow from my local library without leaving my home However there have been numerous times in which my library doesn t have a title I m looking for If that happens to you often you may want to consider a subscription service like Kindle Unlimited or Scribd both of which give you unlimited access to a wide library of e books for per month And for audiobook lovers your options are Amazon s Audible or Libro fm the latter of which lets you choose the local bookstore you want to support with your purchases E readerNathan Ingraham EngadgetE readers are still around because so many people recognize how much better it can be to read e books on a dedicated device ーespecially one with an e paper display Sure you could read on your smartphone or a tablet but staring at those screens all day long can be tiring for your eyes An e reader like Amazon s Kindle Paperwhite or Kobo s Clara HD is a better choice not only for its more comfortable display but also because it focuses your attention on reading If you ve ever picked up your smartphone intending to finish a chapter only to be distracted by email or Twitter you know how crucial this is The new Kindle Paperwhite has a inch display with adjustable warm lights percent faster page turns and weeks of battery life The Clara HD is similar with a inch E Ink display adjustable brightness and color temperature along with weeks of battery life If you already get most of your e books through Amazon the Paperwhite is the best option You can listen to Audible audiobooks too if you connect a pair of wireless earbuds to the e reader Kobo s device primarily gets books via the Kobo Store but it also supports various file types like EPUB PDF and MOBI Plus it has on device integration with Overdrive allowing you to borrow library books directly from the e reader	2022-01-01 14:34:42
ニュース	BBC News - Home	Covid: More restrictions a last resort, Sajid Javid says	https://www.bbc.co.uk/news/uk-59844761?at_medium=RSS&at_campaign=KARANGA	health	2022-01-01 14:21:55
ニュース	BBC News - Home	New Year's Day is warmest on record in the UK, Met Office says	https://www.bbc.co.uk/news/uk-59847641?at_medium=RSS&at_campaign=KARANGA	london	2022-01-01 14:27:32
ニュース	BBC News - Home	Rowley Regis: Driver arrested after girl, 14, dies in crash	https://www.bbc.co.uk/news/uk-england-birmingham-59846289?at_medium=RSS&at_campaign=KARANGA	crashthe	2022-01-01 14:36:13
ニュース	BBC News - Home	Late goal gives Man City win at Arsenal in incident-packed encounter	https://www.bbc.co.uk/sport/football/59787808?at_medium=RSS&at_campaign=KARANGA	league	2022-01-01 14:50:05
ニュース	BBC News - Home	Liverpool boss Klopp to miss Chelsea game after suspected positive Covid test	https://www.bbc.co.uk/sport/football/59847962?at_medium=RSS&at_campaign=KARANGA	chelsea	2022-01-01 14:17:14
北海道	北海道新聞	鹿児島の住宅で２人死亡、母娘か　浴室に流血男性	https://www.hokkaido-np.co.jp/article/629465/	鹿児島市吉野町	2022-01-01 23:07:00
海外TECH	reddit	Post Match Thread: Arsenal 1 - 2 Manchester City [English Premier League]	https://www.reddit.com/r/Gunners/comments/rtkfu4/post_match_thread_arsenal_1_2_manchester_city/	Post Match Thread Arsenal Manchester City English Premier League FT Arsenal Manchester City Arsenal scorers Bukayo Saka Manchester City scorers Riyad Mahrez PEN Rodri Venue Emirates Stadium Follow us on Twitter LINE UPS Arsenal Aaron Ramsdale Gabriel Ben White Kieran Tierney Takehiro Tomiyasu Martin Odegaard Rob Holding Granit Xhaka Thomas Partey Alexandre Lacazette Emile Smith Rowe Gabriel Martinelli Bukayo Saka Mohamed Elneny Subs Nuno Tavares Nicolas Pepe Cedric Soares Albert Sambi Lokonga Ainsley Maitland Niles Bernd Leno Manchester City Ederson Aymeric Laporte Ruben Dias Nathan Ake Joao Cancelo Rodri Kevin De Bruyne Bernardo Silva Gabriel Jesus Ilkay Gundogan Raheem Sterling Riyad Mahrez Subs Kayky Chagas James Mcatee Fernandinho Kyle Walker Luke Mbete Cole Palmer Zack Steffen Jack Grealish MATCH EVENTS via ESPNFC submitted by u GunnersMatchBot to r Gunners link comments	2022-01-01 14:27:58