投稿時間:2021-07-04 16:32:20 RSSフィード2021-07-04 16:00 分まとめ(32件)

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IT	気になる、記になる…	｢iPhone 13｣シリーズはより大きなワイヤレス充電コイルを搭載との情報 − より高速な充電や双方向充電に対応か	https://taisy0.com/2021/07/04/142681.html	everythingapplepro	2021-07-04 06:07:18
IT	MOONGIFT	Whiteboard - Webベースのコラボレーションできるホワイトボード	http://feedproxy.google.com/~r/moongift/~3/ZXKibAxpbiI/	WhiteboardWebベースのコラボレーションできるホワイトボード会議でよく使われるホワイトボード。	2021-07-04 17:00:00
js	JavaScriptタグが付けられた新着投稿 - Qiita	Next.jsアプリにCypress+GitHub ActionsなCIを追加する	https://qiita.com/eyuta/items/341294c4b8d058fb9024	環境NextjsvCypressvcypressiogithubactionvCypress公式のGitHubActions自前でcypressを実行するステップを組むより、簡単に設定可能マイナーバージョンを省略した場合、自動で最新版時点ではvが適用されるソースコード手順前提※こちらで作成したアプリをそのまま使ってます。	2021-07-04 15:37:55
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	不適合な型: doubleをStringに変換できません　というエラーを解決したいです。	https://teratail.com/questions/347595?rss=all	不適合な型doubleをStringに変換できませんというエラーを解決したいです。	2021-07-04 16:00:02
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	畳み込み処理でのエラー”ValueError: not enough values to unpack (expected 4, got 2)”	https://teratail.com/questions/347594?rss=all	畳み込み処理でのエラーValueErrornotenoughvaluestounpackexpectedgot前提・実現したいことSimpleConvNetを使って文字の識別をしようとしています。	2021-07-04 15:57:44
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	jsdocで文字列型引数による分岐処理を表現したい	https://teratail.com/questions/347593?rss=all	abreakcaseb	2021-07-04 15:45:26
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	Next.js firebaseでの静的ホスティング、静的ファイルが表示されない	https://teratail.com/questions/347592?rss=all	Nextjsfirebaseでの静的ホスティング、静的ファイルが表示されないnextnbspexportnbspしたプロジェクトをnbspfirebasenbspdeploynbspした際に画像など静的ファイルが表示されず困っています。	2021-07-04 15:45:18
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	AWSにログインできない	https://teratail.com/questions/347591?rss=all	AWSにログインできない前提・実現したいことAWSにログインできないメールアドレスでログインしても下記のメッセージがでます発生している問題・エラーメッセージエラーが発生しました。	2021-07-04 15:42:50
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	AccessVBAでテーブルにグループを設定する	https://teratail.com/questions/347590?rss=all	追加したリンクテーブルに、グループを設定し、ナビゲーションウィンドウを見やすくしたいのですが、VBAからの設定の仕方が分かりません。	2021-07-04 15:41:22
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	Rails 6でカラムを一気に更新したい場合(バルクインサート)	https://teratail.com/questions/347589?rss=all	Railsでカラムを一気に更新したい場合バルクインサートRailsnbspで一気にカラムを更新したい場合は、どのようにすればよいでしょうか。	2021-07-04 15:28:28
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	python-shellで実行したpythonからの戻り値を取得するにはどうしたら良いですか？	https://teratail.com/questions/347588?rss=all	pythonshellで実行したpythonからの戻り値を取得するにはどうしたら良いですかnodejsの「pythonshell」モジュールを利用して、pythonファイルを実行するプログラムを作成しています。	2021-07-04 15:26:04
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	C#のfloat関数の代入値について	https://teratail.com/questions/347587?rss=all	bspfloatnbspspeednbspnbsp	2021-07-04 15:25:20
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	PHPで10万件の配列ｘ５つを高速処理させたい	https://teratail.com/questions/347586?rss=all	偶数の要素はをかけることで時間に変換する必要があります。	2021-07-04 15:12:48
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	Androidで Cloud Vision APIを呼び出す際の認証方法について	https://teratail.com/questions/347585?rss=all	AndroidでCloudVisionAPIを呼び出す際の認証方法について【実施内容】JavaでAndroidアプリ作成しています。	2021-07-04 15:11:46
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	JSで変数から得た値をキー（？）に配置できない	https://teratail.com/questions/347584?rss=all	JSで変数から得た値をキーに配置できない現在Nodejsを用いた開発を行なっています。	2021-07-04 15:03:55
AWS	AWSタグが付けられた新着投稿 - Qiita	AWS認定をOnVueで受検するときの文字サイズ	https://qiita.com/mrpepper/items/d307ba02a3151e7f36d7	なんか、WEBCAMに超絶接近して目を凝らしていたら、いつものとおり試験官が注意してきたんだけど、今日の人は気が利いていて、「Ctrlプラス記号で文字サイズ大きくできるよ」って英文チャットで教えてくれた。	2021-07-04 15:55:44
AWS	AWSタグが付けられた新着投稿 - Qiita	AWS 「An error occurred (UnauthorizedOperation)」 の後に続くエラーメッセージをデコードする	https://qiita.com/quryu/items/b1f9aa39adcd83318f15	AWS「AnerroroccurredUnauthorizedOperation」の後に続くエラーメッセージをデコードするエンコードされたメッセージAWSCLIを利用してリソースの操作を行いたいとき、権限がなく以下のようなエンコードされたメッセージが表示される場合があります。	2021-07-04 15:46:41
海外TECH	DEV Community	Design Patterns: Builder	https://dev.to/tamerlang/design-patterns-builder-3e2g	Design Patterns BuilderWelcome back to our series on design patterns This week are tackling the Builder pattern It s another creational design pattern but is a bit different from the other pattern s we ve discussed so far in this series Today you will learn Understand the core concepts of the Builder pattern Recognize opportunities to use the Builder pattern Understand the pros and cons of the Builder pattern Definition“Builder pattern is more verbose than the telescoping constructor pattern so it should be used only if there are enough parameters say four or more ーJoshua Bloch Effective JavaIf we google the builder pattern we will get something like this It s not wrong but why does this have to sound so complicated In a nutshell The Builder pattern is a creational design pattern that allows us Construct complex objects step by stepProduce different types and representations of an object using the same construction code ProblemLet s imagine that you work for a construction company that builds houses There are many different types of houses with all sorts of variation For example HouseHouse with swimming poolHouse with gardenHouse with garageHow would we represent this in code One way would be to create a parent class called House and then create a bunch of subclasses for each variant This approach is bad because what if we needed a house with a garage and a swimming pool We will be forced to create a new class called HouseWithGarageAndSwimmingPoolFor every new variant we are gonna have to create a new subclass potentially duplicating code and making everything more complex and harder to maintain Another approach would be to simply create a constructor that accepts a bunch of parameters that determines it s properties It would look something like this class House constructor hasSwimmingPool hasGarage hasGarden some stuff You might be already thinking that this approach isn t very scalable If we wanted to add more properties we just have to add a new parameter to our constructor This may leave us with a huge constructor with complex logic making it hard to maintain But what s the solution This is where the builder pattern shines SolutionFirst of all let s think for a second The construction of a house can be broken down into steps Yea we can build the floor first then the walls then the roof etc How about we put this into a separate builder class called HouseBuilder interface Builder public void buildWalls public void buildDoors public void buildWindows public void buildRoof public void buildGarage public void buildGarden public void buildSwimmingPool class HouseBuilder implements Builder public void buildWalls build walls public void buildDoors build doors public void buildWindows build windows public void buildRoof build roof public void buildGarage build garage public void buildGarden build garden public void buildSwimmingPool build swimming pool public House getResult return the fully configured house You might be thinking that there s just way too much code and it s a huge hassle But you didn t see the added benefit with this we can create different kinds of house builders for example if we want a house made only with stone or a house made only using clay We can simply create two new house builder classes called HouseStoneBuilder and HouseClayBuilder Plus because we are using the same interface for each builder the client code can easily swap between builders Let s demonstrate an example client public House buildHouse type builder new HouseBuilder build what s common in all houses builder buildWalls builder buildDoors builder buildWindows builder buildRoof if type withGarage builder buildGarage if type withGarden builder buildGarden if type withSwimmingPool builder buildSwimmingPool House house builder getResult return house This is certainly much better than we had before but we can make this even better The client code doesn t have to know the steps in making these houses so let us extract the building process to another class called the Director The Director class is like an engineer it knows the steps in creating the houses and uses implementations of the builders to create them class Director extends Builder builder constructor Builder builder this builder builder buildHouse this builder buildWalls this builder buildDoors this builder buildWindows this builder buildRoof return this builder getResult buildHouseWithSwimmingPool this builder buildWalls this builder buildDoors this builder buildWindows this builder buildRoof this builder buildSwimmingPool return this builder getResult other configurations Now that our Director class is ready we can refactor our original client code public House buildHouse type builder new HouseBuilder director new Director builder House house director buildHouse you can add if statements for other configs if type withGarage house director buildHouseWithGarage return house Congratulations you have just implemented your first builder pattern Now it s much easier to new types of houses as well as different configurations When to use this pattern Knowing the Build pattern without using it won t do you any good You have to recognize opportunities where you can apply this pattern Use the Builder pattern to get rid of huge constructors As we have seen in our first example object creation can be a complex thing So if you see that you have a huge constructor that takes way too many parameters and is simply complex and hard to maintain This may be an opportunity to refactor it to the Build pattern Use the Builder pattern when you want to create different variations of objects The Builder pattern allows us to destruct object creation into a step by step process where you the developer can control each step This allows us to create different variations of objects using different builder classes and directors Use the Builder pattern to construct complex objects such as Composite Trees As stated above we control the whole process in object creation we can even recursively create objects to construct composite trees or other complex objects ProsSingle Responsibility Principle You separate the complex construction code from the product object Constructing objects step by step This helps us control the whole object creation flow which allows us to create complex objects Don t Repeat Yourself We remove the need to duplicate code between objects which makes the code more maintainable ConsComplexity Because of the addition of many new classes and interfaces This increases code complexity ConclusionThe Builder pattern can be useful in many real world scenarios I hope you got the gist of it if not then feel free to leave your questions down in the comments If you enjoyed this article share it with your friends and colleagues Thanks for reading Further ReadingsIf you want to learn more about the design patterns I would recommend Diving into Design Patterns It explains all design patterns found in the GoF book in a fun and engaging manner Another book that I recommend is Heads First Design Patterns A Brain Friendly Guide which has fun and easy to read explanations	2021-07-04 06:28:32
海外TECH	DEV Community	The Ultimate Guide to Center Align - CSS	https://dev.to/venkyakshaya/the-ultimate-guide-to-center-align-css-2h9l	The Ultimate Guide to Center Align CSSThis blog will discuss techniques in order of adherence to best practices that can be used to center align an element and when to use each one Here center align refers to placing the element at the horizontal and vertical center of its parent center class represents the element to be center aligned parent represents its parent element Using Transform When to use When the width and height of the element are not knownCard like modals where there are multiple child elements with one focussed element at the center The idea is to use absolute positioning with top and left and then applying negative transform The value used in top and left are resolved based on dimensions of the parent while the value in the translate method is resolved based on the dimensions of the element itself center position absolute top left transform translate Using Flex When to use When there is one or more elements to be centered When the child elements are dynamic and their sizes are not known When there are a row of items that need to be centered like in a footerThe idea is to make the parent container a flexbox and center the element along the horizontal and vertical directions using flex properties as follows parent display flex justify content center align items center When there are multiple elements that need to be stacked one above the other such that the stack is at the center we simply add the following line flex direction column Using Negative Margin When to use When the height and width of the element are known The idea is to again use absolute positioning similar to the transform technique but we apply a negative margin of half the element s width and height instead of translate w px SCSS Variable h px SCSS Variable center position absolute top left margin px px Negative margin of half the width and height To make this code more generic we use the calc property as follows h Half the height h Negated value of half the heightWhich gives us margin calc h calc w Using GridI recently discovered this cool technique from css tricks com When to use When there is only one child element that needs to be centered The idea is to create a grid container and set the margin to auto In a non grid container when margin is set to auto margin top and bottom take the value However in a grid container margin top and bottom is assigned the available space evenly thus centering the element parent display grid center margin auto Using PaddingThis technique is not recommended for center align but it works When to use When the height of the parent element is known fixed When the height of the center element is flexible The idea is to set a fixed vertical padding for the container with fixed height is known and allow the child element to occupy max height and margin auto parent height px Fixed height padding px Fixed vertical padding center margin auto height Child takes max height Using Table cellThis technique is very rarely used today and may raise eyebrows However it does work The idea is to force the parent to behave like a table cell using display We then use vertical align property for vertical centering and margin auto for horizontal centering parent display table cell vertical align middle center margin auto This concludes the ways to center align elements Bonus Horizontal CenteringHorizontal centering is often used in title styles and footers in combination with an even padding or margin Using text align When to use When the center element is text content inline type elementInline includes inline inline block inline flex inline table etc parent text align center It can also center block type child elements but it is not a recommended practice Using margin When to use When the center element is a block element center margin auto Here is a working Codepen demo of all the above techniques Let me know in the comments if there are any more techniques that you have used explored Also follow me on Twitter for more dev content	2021-07-04 06:28:23
海外TECH	DEV Community	CRUD Operations using Javascript.	https://dev.to/ajithmadhan11/crud-operations-in-javascript-5dl5	CRUD Operations using Javascript CRUD operation is the first step for any programmer who starts learning a new language Here in this blog i have discussed about the CRUD operations ie Create Read Update Delete using modern javascript syntax Sample dataThis is an simple array of objects example similar to simple todo app data const Todo title Go for a Walk done true title Finish Remaining Chapters in udemy done false title Scrum call done true title Code review done false title Fix Bugs in Current projects done true CREATECreate is something like adding a new entry to our array In this example i had added a new todo Hit the GYM using Push operation in js Push basically pushes the input to the array that we pass to it as an parameter It adds the input to the tail of the array const addTodo todo done gt Todo push title todo done done console log TODO ADDED SUCCESSFULLY displayTodo addTodo Hit the GYM false Result Todo added at index ReadRead is like reading the entire the content of the array In the below example I have used forEach loop to loop to the entire array of objects and logged each object in console The forEach method executes a provided function once for each array element const displayTodo gt Todo forEach item index gt return console log index Todo item title Done item done displayTodo Result Updateupdate is like updating the content of an existing object with new value In this example I had looped through the entire array and by using findIndex method the index of the old todo is found The findIndex method returns the index of the first element in the array that satisfies the provided testing function Otherwise it returns indicating that no element passed the test Now we can update the value of array at the particular index const updateTodo oldTodo newTodo gt let todoToUpdateIndex Todo findIndex todo gt return todo title oldTodo Todo todoToUpdateIndex title newTodo console log console log TODO IS UPDATED SUCCESSFULLY displayTodo updateTodo Scrum call Scrum call Result DeleteSimilar to update we will find the index of the object to be deleted and we will delete the object at that index using Splice method The splice method changes the contents of an array by removing or replacing existing elements and or adding new elements in place To access part of an array without modifying itconst deleteTodo title gt let deleteTodoIndex Todo findIndex todo gt return todo title title Todo splice deleteTodoIndex console log console log TODO title IS DELETED SUCCESSFULLY displayTodo deleteTodo Code review ResultBONUS Search Operationconst searchTodo title gt let searchTodoIndex Todo findIndex todo gt return todo title title console log Todo searchTodoIndex console log SEARCHING searchTodo Finish Remaining Chapters in udemy Result	2021-07-04 06:00:30
金融	ニュース - 保険市場TIMES	メットライフ生命、「健康告知なし」の利率変動型一時払終身保険（米ドル建21）を発売	https://www.hokende.com/news/blog/entry/2021/07/04/160000	メットライフ生命、「健康告知なし」の利率変動型一時払終身保険米ドル建を発売ニーズに合わせて選べるメットライフ生命は月日、「健康告知なし」の利率変動型一時払終身保険米ドル建を発売した。	2021-07-04 16:00:00
海外ニュース	Japan Times latest articles	Search continues for 20 missing after rain-triggered mudslide in Shizuoka	https://www.japantimes.co.jp/news/2021/07/04/national/shizuoka-landslide-search/	disaster	2021-07-04 15:13:24
ニュース	BBC News - Home	Philippines military plane crashes with at least 85 on board	https://www.bbc.co.uk/news/world-asia-57711597	aircraft	2021-07-04 06:44:49
ニュース	BBC News - Home	Covid: Youth clubs fear for children 'lost to the streets' in pandemic	https://www.bbc.co.uk/news/uk-wales-57468462	pandemicyouth	2021-07-04 06:07:42
ニュース	BBC News - Home	Pandemic investing: 'Using my part-time pay to invest in stocks'	https://www.bbc.co.uk/news/uk-wales-57499560	covid	2021-07-04 06:08:14
LifeHuck	ライフハッカー［日本版］	筋トレのアドバイス、複数の正論がある理由とは？	https://www.lifehacker.jp/2021/07/why-nobody-can-agree-on-fitness-advice.html	遭遇	2021-07-04 16:00:00
北海道	北海道新聞	終盤オウンゴール誘い徳島に勝利　コンサ	https://www.hokkaido-np.co.jp/article/563287/	北海道コンサドーレ札幌	2021-07-04 15:15:00
北海道	北海道新聞	アルゼンチンが準決勝へ　サッカー南米選手権	https://www.hokkaido-np.co.jp/article/563284/	南米選手権	2021-07-04 15:04:11
北海道	北海道新聞	ＥＵ、使い捨てプラ食器を禁止　欧州の海岸ごみ７割減	https://www.hokkaido-np.co.jp/article/563289/	使い捨て	2021-07-04 15:17:00
北海道	北海道新聞	函館で２人感染　新型コロナ	https://www.hokkaido-np.co.jp/article/563288/	新型コロナウイルス	2021-07-04 15:16:00
北海道	北海道新聞	夏の高校野球支部予選・７月４日の試合結果	https://www.hokkaido-np.co.jp/article/563255/	夏の高校野球	2021-07-04 15:07:36
IT	週刊アスキー	餃子の王将、痺れる辛さの「スタミナ麻辣ソース焼そば」7月限定で発売	https://weekly.ascii.jp/elem/000/004/061/4061492/	餃子の王将	2021-07-04 15:30:00