投稿時間:2021-06-12 20:23:25 RSSフィード2021-06-12 20:00 分まとめ(25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…	Beatsの新型ワイヤレスイヤホン｢Beats Studio Buds｣のプレス用レンダリング画像が流出	https://taisy0.com/2021/06/12/141770.html	beats	2021-06-12 10:39:36
IT	MOONGIFT	Vandal - Web Archiveを使って過去のサイトへアクセス	http://feedproxy.google.com/~r/moongift/~3/iAN_tEnfiSI/	そんな時に過去のWebサイトを見られるサービスが便利です。	2021-06-12 21:00:00
js	JavaScriptタグが付けられた新着投稿 - Qiita	【Node.js】https と fs で、ファイルをダウンロードする	https://qiita.com/eyuta/items/ae5115091d3865e0c530	【Nodejs】httpsとfsで、ファイルをダウンロードする環境nodevvyarninfohttpsversionyarninfofsversionsecurityyarninfotypescriptversionコード使いやすいようにPromiseを併用しています。	2021-06-12 19:37:48
js	JavaScriptタグが付けられた新着投稿 - Qiita	Geolocation APIを使って位置情報を取得する	https://qiita.com/kokano23/items/826b4098243f7d783c38	省略可maximumAgeoptionの例整数ミリ秒キャッシュされた位置の最大寿命。	2021-06-12 19:37:23
js	JavaScriptタグが付けられた新着投稿 - Qiita	https.requestでPromiseを使う	https://qiita.com/eyuta/items/d0223477db7fa1cfc5d0	httpsrequestでPromiseを使うhttpsrequestがhttpClientRequestを返すので、続けてhttpsonやhttpsendが利用可能。	2021-06-12 19:10:32
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	エラーコード： Error in render: "TypeError: Cannot read property 'uid' of undefined"を解消したい	https://teratail.com/questions/343671?rss=all	エラーコードErrorinrenderquotTypeErrorCannotreadpropertyxuidxofundefinedquotを解消したい上記よりつエラーが出ております。	2021-06-12 19:37:36
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	外部から読み込んでいるjsonがブラウザバックすると表示できなくなる	https://teratail.com/questions/343670?rss=all	外部から読み込んでいるjsonがブラウザバックすると表示できなくなるJSON初心者ですmnbspm外部よりjsonにて更新情報を読み込んでいるのですが読み込まれたリストからリンクで遷移した場合とブラウザバックで遷移した場合に読み込めているjsonの情報が読み込めなくなります。	2021-06-12 19:34:18
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	PostgreSQLで変数を使いたい	https://teratail.com/questions/343669?rss=all	error	2021-06-12 19:28:37
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	unity verticalkyeでジャンプさせたい	https://teratail.com/questions/343668?rss=all		2021-06-12 19:26:11
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	C#とPHPでやりとりを行いたい	https://teratail.com/questions/343667?rss=all	webapi	2021-06-12 19:22:33
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	ビューから受け取るデータがクラスのメンバの一部である場合の差分更新方法	https://teratail.com/questions/343666?rss=all	ビューから受け取るデータがクラスのメンバの一部である場合の差分更新方法前提・実現したいことASPNETnbspMVCで、DBから取得したデータをビューに表示、ユーザーがビューで入力したデータを受け取ってDBに反映するという処理を実装しています。	2021-06-12 19:16:50
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	パラメータ'2021-06-12'を渡したい	https://teratail.com/questions/343665?rss=all	パラメータxxを渡したいSQLnbspServernbspnbspManagementnbspStudioにて、プロシージャを作成し、execを利用して実行することを試みています。	2021-06-12 19:09:54
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	指定した座標値の色を判別してマウスクリック	https://teratail.com/questions/343664?rss=all	指定した座標値の色を判別してマウスクリック初心者です、手探りでRPAを作成しようと試みています。	2021-06-12 19:09:03
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	Canvas抜きでText(TextMeshPro)を表示する方法はありますか？	https://teratail.com/questions/343663?rss=all	Canvas抜きでTextTextMeshProを表示する方法はありますか前提・実現したいことUnityでオンラインのハイパーカジュアルゲームを制作するため以下のサイトの「初期設定とチュートリアル」でPUNの基本を学んでいたのですがPUNとは関係の無いと思われる部分で疑問に感じる部分が出てきたので質問致します。	2021-06-12 19:05:30
Ruby	Railsタグが付けられた新着投稿 - Qiita	RailsでScrollTriggerを導入する【自分用メモ】	https://qiita.com/qp___04/items/32f972688506c8ab6a0d	RailsでScrollTriggerを導入する【自分用メモ】ScrollTriggerとは年月にGSAPGreenSockAnimationPlatformから生まれたスクロールアニメのためのライブラリです。	2021-06-12 19:28:58
海外TECH	DEV Community	A quick guide about Scrum	https://dev.to/menard_codes/a-quick-guide-about-scrum-5485	A quick guide about ScrumWhile studying web development I have a thought of how on the world do people translate their ideas into real world products and yes I m talking about software here like what is that bridge that connects the realm of idea to a real software product That s when I came across with the book Software Development from A to Z A Deep Dive Into All the Roles Involved in the Creation of Software This book helped me to answer many of my questions about software creation mostly for web dev though not all but it s a handful and this is when I decided to share my learning journey about Software Development to the people on the web NOTE This is a journal of what I learned and if you found something is not quite right please let me know I will appreciate sharing your knowledge to me and other readers as well So what is Scrum To start with Scrum is a big topic but let s condense it a bit and learn at least the essentials One way to define it is that Scrum is an Agile approach to software development where things start simple from planning to development to testing and probably shipping to production And from that step it is followed by gathering feedback and reiterating the process over and over again because in Scrum the product is always improving and never finished For me it s like the process of evolution where the product starts in it s basic form then it s gradually improved the feedback from product owner customer etc also helps shaping the product for it to better suit the needs and demands of the users and then continuously give it it s best form yet reiterating the loop over and over RolesIn scrum there are different roles an organization might have on implementing Scrum They are Product OwnerScrum MasterTeam s Team members Product OwnerThe product owner brings the bright ideas to the table and gives the software requirements for the product backlog The Product owner can also represent the customers and their needs where the concept of the product or a feature starts to take shape Scrum MasterScrum masters facilitates the teams as well as communicating with the product owner It is often attributed that scrum masters as servant leaders TeamThey make sure the goal is achieved Team members work on the user stories and move tasks from to do and pushes it to done depending on how the organization defines done it is a set of criteria a task must meet to be able to considered done From idea to developmentUsually the product owners are the originators of product ideas They are the visionaries that can see opportunities and needs that they want to fulfill and offer to the market They are you re average entrepreneurs so to speak From this point the product requirements are specified mostly a meeting with scrum masters and or team members is held to build the Product BacklogFrom this point the Sprint backlog is filled with a list of user stories A sprint is a timebox of about weeks in which the team members develop and fulfill the user stories Every starting day of a sprint a daily scrum is held which is a minute meeting about what the team just finished yesterday what they re working on and discuss the blockings and try to resolve it if there are so that they can start the day more effectively All the progress is reflected on a Burndown chart which tracks the number of tasks finished by the team over time or the team s average velocity Also during the sprint the Scrum board reflects the progress of the work based on which are yet To Do In progress and Done The consideration of done depends on the criteria set for a task and if it is met At the end of a sprint comes the sprint review This is when the past sprint is discussed and analyzed The team also showcases the product or feature to the product owner A Sprint retrospective also is done where the team and scrum master discusses the past sprint and the things that have gone wrong so that they can prevent it the next sprint Depending on that sprint the requirements and or the product owner the product might be shipped to production All feedback will be used as guide for the next sprint to make the product better suite the requirements or needs of the customers This process will reiterate many times to continuously improve the product and better fit the needs of the customers and the market Final ThoughtsScrum is a good framework to help teams and organizations develop their products quicker and more efficient The process might vary from companies but the essence is the same deliver fast get feedback repeat	2021-06-12 10:43:06
海外TECH	DEV Community	JavaScript Design Patterns - Builder	https://dev.to/coderslang/javascript-design-patterns-builder-290d	JavaScript Design Patterns BuilderBuilder is one of the Creational Design Patterns which help you deal with how objects are created You should pay close attention to your object creation techniques that may morph into serious design problems if you neglect them Start here if you re just getting started with Design Patterns in JavaScript Real world examplesPicture having to assemble tiny lego pieces into what looks like a house There are several different ways of grouping them into various representations A basic house will have a door zero or more windows and a roof with surrounding walls Some may even have a garage and some have a swimming pool We d wish for the process to be simpler and flexible to accommodate changes A step by step assembly of the lego pieces at your disposal forms the essence of the Builder pattern Objects are thus constructed following a sequence of steps one after the other instead of arriving at it all at once JavaScript objects are a collection of properties and methods Properties are fields or variables associated with the object And methods are functions that you re going to invoke to manipulate the fields Objects properties are closely related to each other at least semantically in the worst case JavaScript provides many ways to create objects Object InitializerThe most common method of creating an object in JavaScript is an object literal notation const employee firstName Sam lastName Greene id phone where firstName lastName id and phone are properties of the object named employee ConstructorAlternatively we can use a constructor to create multiple instances of similar objects using the new keyword class Employee constructor fname lname id ph this firstName fname this lastName lname this id id this ph const employee new Employee Sam Greene const employee new Employee Nate Tyson Using Object createObject create is an inbuilt function that you can use to create multiple instances of an object It allows you to pass in the template object as an input thus choosing the prototype for the objects as desired without a constructor const Employee isAdmin false getRole function return this isAdmin Admin RegularEmp const emp Object create Employee emp getRole RegularEmp const emp Object create Employee emp isAdmin true emp getRole Admin In this example both emp and emp inherited the method getRole Once you ve set the isAdmin to true the role of emp changed to Admin The problemSo it looks like there s already a bunch of ways to create objects in JavaScript Why would we want to invent something different Let s consider two important questions What if you need to create a complex object comprising too many fields and properties What if you need to create multiple instances of almost the same object Object literal is not a good choice for it doesn t help with code reusability Every time you need a new object you d have to list all its fields over and over Constructor would solve the issue to a certain extent but it d be cumbersome You d have to remember the inputs to it some of which are mandatory and others aren t The Builder PatternWhat if you had a way to address just the above two problems while hiding the internal representation from anyone using it Objects are all around us in real life And you can compare JavaScript objects with them A car for example comes in different colors or with a different number of seats A house can have a various number of doors windows and chimneys Differences are everywhere yet there are some similarities The Builder Pattern gives you a way to simplify creating a complex object by separating it from its representation This pattern eases the construction of an object taking the process through a step by step progression while also encapsulating hiding the implementation details of these steps Let s look into what a flexible design looks like for a simple OTG builder and how it evolves with the help of the Builder pattern Building an OTG using the Builder Design PatternThere should be provision to build OTGs in various colors models pricing and features Some are built to support high temperature and a good timer selection span For example lower end models come with low temperature settings and a default timer Step Class OTGA simple class for OTG here has a JS constructor that takes in four parameters Every OTG instance has a default title an overridable temperature and time selections which are by default set to and respectively class OTG constructor model color maxTemperature maxTimeSelection this model model this title OTG this color color this maxTemperature maxTemperature this maxTimeSelection maxTimeSelection const redOTG new OTG LG red const highTempOTG new OTG LG black const highendTimeOTG new OTG LG red The above code looks ok for now But there s a problem with it Imagine having to create multiple selections of OTG instances It will get difficult to keep track of the parameters and their order in the constructor Also at times there will be no need for sending in certain optional parameters Step Create a builder classLet s look at how we can avoid cramming the constructor to accept minimal parameters class OTGBuilder constructor model color this model model this title OTG this color color OTGBuilder class here is responsible for the creation of instances of the OTG class But it doesn t do this yet For now it just captures the basic fields model and color These fields are a must so we include them directly in the constructor Step Add optional parameters as separate functionsYou ve probably noticed that the fields maxTemperature and maxTimeSelection can t be configured with a the constructor These properties are optional and we ll create separate functions to set them class OTGBuilder constructor model color this model model this title OTG this color color setMaxTemperature temp this maxTemperature temp return this setMaxTimeSelection maxTime this maxTimeSelection maxTime return this It s necessary to add return this to make sure we can use chained call when we re working with the Builder Design Pattern const otg new OTGBuilder MorphyRichards Black setMaxTemperature setMaxTimeSelection Step BuildThe only remaining problem is that the object otg isn t the proper OTG yet It s an instance of the OTGBuilder class And you need to implement the last step of the process which is the build method class OTGBuilder constructor model color this model model this title OTG this color color setMaxTemperature temp this maxTemperature temp return this setMaxTimeSelection maxTime this maxTimeSelection maxTime return this build return new OTG this model this color this maxTemperature this maxTimeSelection Now you can call the build method when you re ready to create your OTG const basicOTG new OTGBuilder MorphyRichards Black setMaxTemperature setMaxTimeSelection build If you want to you can always skip the steps to set optional parameters const default new OTGBuilder Generic OTG White build The properties maxTemperature and maxTimeSelection will default to and unless you overwrite them with setMaxTemperature and setMaxTimeSelection Thanks for reading I hope you liked this intro the Builder Design Pattern Like share comment if you want me to cover more JavaScript Design Patterns in the future Get my free e book to prepare for the technical interview or start to Learn Full Stack JavaScript	2021-06-12 10:14:19
海外TECH	DEV Community	var, let, and const – Why to avoid var 😷 and how to put the other two to good use? - Javascript	https://dev.to/pratap2210/var-let-and-const-why-to-avoid-var-and-how-to-put-the-other-two-to-good-use-javascript-1p0a	var let and const Why to avoid var and how to put the other two to good use JavascriptWell in this blog we will illustrate the differences between var let and const We ll also discuss why we should avoid var and prefer const In ES we had only one way of declaring variables using var But with ES we now have three to declare a variable namely var let and const varFirstly let us see how var works for var i i lt i console log i In most programming languages the scope of iwill be inside the body of loop only The value of i can be accessible within the body of for loop Let us see what happens if we console the value of variable i after the loop for var i i lt i console log i console log After loop i This prints Why is that We can see that we are able to access the variable i even outside the loop which is very intuitive when coming from another programming language No one would expect the variable i to survive outside the loop Why does that happen The reason is that there is only one type of variable scope in ES which is a function scope To illustrate the above statement let us wrap the above code inside a function and execute the function function counter for var i i lt i console log i console log After loop i still prints counter Let us move the console log to outside of the loop and see what happens function counter for var i i lt i console log i console log After loop i It throws an error this time Reference error i is not defined counter This time it throws an error Refrence error i is not defined and it is because the scope of var is within the f unction scope The variable i will be available only within the function counter and if called from outside the function it will throws and error In order to avoid this type of error Some developers used the concept of Immediately Invoked Function Expression IIFE This is how IIFE looks like function for var i i lt i console log i console log After loop i Most of the Javascript developer does not know about IIFE IIFE is a function that is declared and called immediately People do this to keep the variables that are inside the IIFE to pollute the rest of the code It creates lots of cohesive block of safe heaven Javascript variables are hoistedWhat do Javascript variables are hoisted means Well it means that they are hoisted to the top of their function What Javascript compiler or interpreter does is it will go through the code and it will find variable declaration and push them up to the top of the function of javascript developers do not know the concept of hoisting Upon compiling the below code it still works A the variable i of for loop is hoisted to top of the function function var i It pushes the variable to top of the function for i i lt i console log i Keep note it doesn t matter how many lines of code are there in between it will still move the variable declaration to the top of the function There is also a horrible aspect of hoisting Let s say you forgot the variable declaration as shown in below code function for i i lt i console log i console log After loop i This prints What the heck just happened Why does it prints This happened because the javascript interpreter has put the variable declaration out of the function this time If there is no variable declaration inside a function the interpreter will keep going up the function chain all upto global window object And then if it finds it then it will place the variable in the global window object var i function for i i lt i console log i console log After loop i This is of course horrible because you can accidently declare a global variables This is why we are encouraged to always use use strict statement it prevents us from accidentally declaring a global variable use strict function for i i lt i console log i console log After loop i This time the above code will throw an error RefrenceError i is not defined use strict var i function for var i i lt i console log i this prints console log After loop i This prints Even though we are using the same variable name it prints because the inner var i is scoped to the function only This time let s remove var from inside the function and see what happens use strict var i function for i i lt i console log i this prints console log After loop i This prints It prints this is because i inside function is reassigning the outside variable i As mentioned above it will check if variable i is defined in function if it doesn t found it then it will move up to the global window As it finds the variable i then it will be re assigned That is the reason why it is logging out Always remember the concept of hoisting Hoisting is nothing but moving the variable declaration to the top of the function or global window object letNow let us demonstrate the same example using let use strict var i for let i i lt i console log i console log After for loop i This prints It works We can see from the example code above that let is not behaving like var And the above code works as expected The reason why it worked is that let introduces block scoping The variable let i of for loop will be available only inside the body of for loop The block scoping of let is also valid for if else switch etc use strict var i for let i i lt i console log i if true let i console log After for and if i This still prints From the code snippet we can see that the the scope of variable i is scoped with in for loop and if respectively Just like var we can re assign let let i i console log i Prints let is block scope while var is function scope A lot of people say that let is the new var and I agree with that constconst is a variable just like let which cannot be re assigned To demonstrate this let me show you an example const i i console log i The code above throws an error TypeError Assignment to constant variable Let s look at an example belowconst x y x y console log x Prints y We can see that we are able to update the property of x Now let us try to assign a new object to constant variable x const x y x z console log x This time it throws an errorThe code snippet above throws an error because we are re assigning a constant variable var vs let vs constWhole blog summarized in a table ScopesvarletconstStored in global scopetruefalsefalseFunction ScopetruetruetrueBlock ScopefalsetruetrueCan be re assignedtruetruefalseCan be re declaredtruefalsefalseCan be hoistedtruefalsefalse ConclusionAlways use const if you do not want to change the variable Whenever you are using let first ask yourself if you are really changing the variable or do you really need to change it If the answer is yes then use let else use const Always use const If you REALLY need to change state use let var is dead var should always be avoided because of hoisting In this blog we have learnt aboutWhy to avoid var What hoisting in javascript is What Immediately Invoked Function Expression IIFE is and how to use it How to decide between using let and const ConclusionI hope this post saved your time and life If you liked the post feel free to share it to help others find it You may also want to read Getting Started with Git A beginner s guideYou may also follow me on LinkedIn and Twitter If you d like to receive more tutorials in your inbox you can sign up for the newsletter here	2021-06-12 10:06:47
ニュース	BBC News - Home	Trooping the Colour: Scaled back celebration for Queen's official birthday	https://www.bbc.co.uk/news/uk-57451808	covid	2021-06-12 10:46:16
ニュース	BBC News - Home	G7: PM calls for compromise over Northern Ireland trade	https://www.bbc.co.uk/news/uk-politics-57453004	brexit	2021-06-12 10:50:29
LifeHuck	ライフハッカー［日本版］	最新版Firefoxが大刷新！変更点を早速チェックしよう	https://www.lifehacker.jp/2021/06/the-biggest-changes-in-firefox-89.html	firefox	2021-06-12 20:00:00
北海道	北海道新聞	道の大規模接種、予約開始日変更　札幌は１６日、恵庭は１７日　システム準備に遅れ	https://www.hokkaido-np.co.jp/article/554868/	開始	2021-06-12 19:16:00
北海道	北海道新聞	コロナ拡大で交通事故死減少　白書原案、統計開始後で最少	https://www.hokkaido-np.co.jp/article/554867/	交通事故	2021-06-12 19:15:00
北海道	北海道新聞	白神の地滑り、８０年代から集中　弘前大が調査、防災貢献も	https://www.hokkaido-np.co.jp/article/554864/	世界遺産登録	2021-06-12 19:01:00
ニュース	Newsweek	中国の「反外国制裁法」と問われる日本の覚悟	https://www.newsweekjapan.jp/stories/world/2021/06/post-96499.php	中国の「反外国制裁法」と問われる日本の覚悟月日、中国で「反外国制裁法」が制定された。	2021-06-12 19:40:02