投稿時間:2021-04-19 22:29:58 RSSフィード2021-04-19 22:00 分まとめ(38件)

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IT	気になる、記になる…	Apple、4月20日の発表イベントでポッドキャストの定額制サービスを発表か	https://taisy0.com/2021/04/19/139137.html	apple	2021-04-19 12:55:13
IT	ITmedia 総合記事一覧	[ITmedia News] 「チケット販売は半分」　フジロック、開催へ意欲も難しさ浮き彫りに	https://www.itmedia.co.jp/news/articles/2104/19/news144.html	itmedia	2021-04-19 21:35:00
python	Pythonタグが付けられた新着投稿 - Qiita	Python 少ない点に対する近似曲線 2	https://qiita.com/quryu/items/88e768a6bef5e06e4179	曲線の右側もおかしな極値を取っています。	2021-04-19 21:49:32
python	Pythonタグが付けられた新着投稿 - Qiita	【Python tips】htmlタグの削除の方法	https://qiita.com/takahashikaito94/items/1ea3d5247b1deb1a14a6	【Pythontips】htmlタグの削除の方法はじめに今回はテキストデータからHTMLタグを削除する方法を紹介します。	2021-04-19 21:40:15
python	Pythonタグが付けられた新着投稿 - Qiita	モダンFortran向けドキュメント自動生成ツールFORDの使い方	https://qiita.com/implicit_none/items/8fc065df6a295183b141		2021-04-19 21:12:00
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	PHPのフォームでタグを表示させた上でデータを送信したい	https://teratail.com/questions/334109?rss=all		2021-04-19 21:59:58
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	VBA changeイベント オートメーションエラー	https://teratail.com/questions/334108?rss=all	VBAchangeイベントオートメーションエラーchangeイベントを使用して、特定の値を返すマクロを組んでいるのですが、changeイベントに合わせてfindメソッドを使用すると、下記の画像のようなオートメーションエラーが出てきてしまいます。	2021-04-19 21:54:41
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	エンジニアが楽しく「なくなった」	https://teratail.com/questions/334107?rss=all	エンジニアが楽しく「なくなった」経験年目の歳エンジニアです。	2021-04-19 21:50:25
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	Algoliaでフォロー機能を実現したい。	https://teratail.com/questions/334106?rss=all	実現したいことFirebasenbspFunctionを使いFireStoreに記録されたタイミングで記事のデータをAlgoliaに転送します。	2021-04-19 21:37:51
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	複数デバイスを想定したRaspberry pi のデバイス設定/ソフト管理方法	https://teratail.com/questions/334105?rss=all	複数デバイスを想定したRaspberrypiのデバイス設定ソフト管理方法Raspberrynbsppiを使って複数のデバイスでの使用を想定して複数のアプリを作ろうとしてます。	2021-04-19 21:37:42
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	ENOTEMPTY: directory not empty, renameのエラー文の解決方法	https://teratail.com/questions/334104?rss=all	ENOTEMPTYdirectorynotemptyrenameのエラー文の解決方法amplifyを使いたくnpmnbspinstallnbspgnbspawsamplifycliをしところ、下記エラーが出てしまい、躓いてる状況です。	2021-04-19 21:33:23
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	JsonUtilityを使ってネストされたJsonファイルの値を取得したい	https://teratail.com/questions/334103?rss=all	JsonUtilityを使ってネストされたJsonファイルの値を取得したいゲーム制作で音ゲーを作っているのですが、Json形式で保存されたネストされた譜面の情報を値として取り出したいです。	2021-04-19 21:29:52
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	wordpressで、自分と同じ権限グループがアップした画像だけ表示する	https://teratail.com/questions/334102?rss=all	wordpressで、自分と同じ権限グループがアップした画像だけ表示するwordpressで、自分の権限グループの人がアップした画像しか見れない、という設定は可能でしょうかメディア一覧、または画像アップロード画面で、権限グループAのアカウントは、権限グループAのアカウントがアップした画像しか見れない。	2021-04-19 21:11:52
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	C言語　配列について	https://teratail.com/questions/334101?rss=all	C言語配列について前提・実現したいことC言語の勉強を始めたばかりの初心者です。	2021-04-19 21:09:39
Linux	Ubuntuタグが付けられた新着投稿 - Qiita	ubuntuのzshでbashのようにコマンドの提案を行う	https://qiita.com/javaboy/items/50c114fec993d06f28b8	つまり、usrlibcommandnotfoundがあればそれを、usrsharecommandnotfoundcommandnotfoundがあればそれを、両者ともなければ単純なメッセージを表示するという内容である。	2021-04-19 21:02:30
AWS	AWSタグが付けられた新着投稿 - Qiita	【AWS】仮想化を理解する	https://qiita.com/mzmz__02/items/fb78f0e5c9f23f3bb740	仮想化の対象サーバー・ストレージ・ネットワーク・デスクトップを仮想化することができる。	2021-04-19 21:18:57
技術ブログ	Developers.IO	「ARカップ麺タイマー」からはじまるxRプロジェクト	https://dev.classmethod.jp/articles/begininng-of-xr-project/	champlasonic	2021-04-19 12:15:37
海外TECH	DEV Community	Command-Line Interfaces: Structure & Syntax	https://dev.to/paulasantamaria/command-line-interfaces-structure-syntax-2533	Command Line Interfaces Structure amp SyntaxIf you are a developer chances are you have used or read about CLIs already maybe to execute git or npm commands or in some library s documentation I work with multiple CLIs every day docker dotnet npm git etc but I had never stopped to learn much about their structure or syntax until recently Reading documentation and examples is usually enough to get by However I m currently developing my own CLI for a personal project so I decided to learn more about CLI design structure syntax and conventions I did my research which I documented and decided to share here in this post Introduction Structure Arguments Options Flags The help flag Common aliases for the help flag Levels of verbosity The help command CLI description syntax conventions Required Parameters Optional Parameters Arguments that can receive many values Mutually exclusive argumentsConclusion References IntroductionA CLI or Command Line Interface is an application that handles user interaction through the Command Line They don t have graphics except maybe for ASCII Art All the information is presented to the user in the form of text and the user interacts with it by typing in commands CLIs can be faster than GUIs for certain tasks especially for monotonous tasks and when you re already familiar with the commands One of the main advantages they have over GUI is that they re easier to automate running npm install in a CI pipeline could be a lot trickier without a CLI StructureMost CLIs are designed with the following structures lt command gt arguments options Example ls home dir all lt program gt lt command gt arguments options Example git fetch origin main depth lt program gt arguments options Example docker vCommands are usually represented as verbs and programs as nouns as they are usually a short version of the program s name There are some cases where a second or third or more noun is used to narrow the scope in which the command will operate for example docker container startHere we have the program docker the context container and the command start ArgumentsArguments in a CLI allow users to send data to the application sometimes in a command context They are often called positional arguments because they are identified by their position which means users must write the value for each argument in the correct position mycli command argValue argValue They can be required or not If they are not required the command s behavior may vary in the absence of the parameter often using a default value instead No argument provided gt Installs all dependencies from the package json gt npm install Argument value some package gt Installs only some package gt npm install some packageAnother example No arguments gt Uses default remote and branch gt git fetch Passing a specific remote and branch as arguments gt git fetch origin main OptionsOptions are named parameters that can be passed to a command and are represented by key value pairs Unlike positional arguments their position is not important You re probably familiar with the following example Key message Value commit message git commit message commit message Options are usually not always used to represent optional parameters In most cases if a parameter is required a positional argument is the best way to go Some options have aliases which are short versions of the same option easier to type and remember They re usually identified by a single dash prefix Long version gt mycli help Alias gt mycli hDifferent delimiters are supported depending on the CLI and Operating System These are some of the most common Single space gt mycli file text txt gt mycli file text txt gt mycli file text txt FlagsOptions that don t require a value are often called Flags They are boolean meaning their presence indicates true and their absence false Some examples of commands using flags gt git push force gt npm install save dev The help flagInforming our users about the available commands and their arguments and options can be tricky without a GUI That s when the help flag comes in When we include the help flag after a command we ask the CLI to give us more information about it Usually this information will include a short description of the command arguments options and aliases Example gt npm install help Common aliases for the help flag help h H Levels of verbositySome CLIs allow the user to ask for different levels of help For example the dotnet CLI will print the short version when we use h or help and the long version when we use H or HELP Short versiondotnet lt command gt h Long versiondotnet lt command gt HSimilarly git CLI prints a summary of the command briefly explaining how to use it when we use h but redirects to the offline HTML documentation when we use help Short versiongit lt command gt h Offline HTML docsgit lt command gt helpLearning about the different levels of verbosity was really helpful I ve been using it frequently although it s a shame there s not a standard for it The help commandSome CLIs also provide a help command which usually gives more detailed information than the help flag program help lt command name gt For example both dotnet CLI and npm CLI will open a browser and redirect you to the command s full documentation when we use the help command dotnet help lt command gt npm help lt command gt CLI description syntax conventionsWhen reading a CLI s documentation or a man page you ll likely come across a particular syntax used to describe commands their arguments and options located often under Synopsis I used to not pay much attention to it other than trying and figuring out the general anatomy of the command and going straight to the examples But after learning about it and how to interpret it these descriptions have become much more useful to me Required ParametersRequired parameters are often represented using just the name of the param although in some cases you may find them between angle brackets dotnet new lt template gt We can t create a new dotnet project without specifying a template mv source dest When moving a file directory we must specify the source and destination parameters Optional ParametersOptional parameters are most commonly represented using square brackets mycli command optionalParameter docker container ls options We can add some flags and options to alter the command s behavior git remote v verbose We can use v or verbose to get more information about each git remote Arguments that can receive many valuesEllipses indicate the argument option expects many values It can be applied to optional or required parameters Here s how it looks like applied to optional parameters mycli command parameter The previous statement tells us our parameter expects to N values Required parameters that receive many values are usually represented in one of two ways Here is one of them mycli command lt myParameter gt myParameter This statement tells us the command receives at least a single value for lt myParameter gt but can also receive more values represented by myParameter resulting in to N values Here s an example from the Docker CLI docker container start lt container gt container When executing the start command we must specify at least one container but we can also start more than one in the same command The second way of representing required parameters with many to N values is as follows mycli command lt myParameter gt Or mycli command myParameter Since we are not using square brackets it s clear myParameter is required which indicates it needs at least one value to N Here s an example mkdir directory We need to specify at least one directory to create when using mkdir but we can also create more than one Mutually exclusive argumentsSome arguments cannot be used together in the same command Their exclusive relationship is represented using pipes mycli command option option The square brackets tell us we don t have to use any of those options and the pipe tells us that if we decide to use them we can t use them both at the same time So any of the following are valid mycli commandmycli command optionmycli command optionBut the following would be invalid mycli command option optionAn example from git commit git commit a interactive patch The previous statement tells us we can use any of those flags a interactive or patch but not togetherAlso the square brackets indicate we can also decide not to use any of them Here s what happens when we try to use a and patch together gt git commit a patch fatal Only one of include only all interactive patch can be used This syntax is often used to represent aliases git remote v verbose Both flags are valid individually but it doesn t make sense to use them simultaneously Similarly there are cases when at least one option must be included In those cases we use vertical bars and we group the parameters using curly brackets or parentheses like so mycli command option option Or mycli command option option The curly brackets or parentheses indicate that at least one option must be included Here s an example from git remote git remote set head lt name gt a auto d delete lt branch gt The parenthesis indicates that we must choose at least one of those optionsThe pipes tell us we can t choose two or more of themIf we don t use any of the required options we get this error gt git remote set head origin usage git remote set head lt name gt a auto d delete lt branch gt a auto set refs remotes lt name gt HEAD according to remote d delete delete refs remotes lt name gt HEADAnother example from dotnet new dotnet new lt template gt lang language C F VB So the square brackets indicate that passing a lang or language is optionalThe curly braces and pipe indicate that we must choose between C F and VB ConclusionI know I could have developed my CLI without stopping to learn any of this After all there are libraries that would take care of the syntax and interpretation of commands Nonetheless I found it extremely interesting and I have been using this new knowledge a lot after acquiring it Finding and reading CLIs documentation has become a lot easier and I learned many tips that will definitely help me develop a better more intuitive CLI following the conventions and standards described in this article ReferencesCommand Line Interface CodeacademyDocumenting command line syntax Google Developer Documentation NET CLI documentationGit CLI documentationNPM CLI documentation	2021-04-19 12:30:30
Apple	AppleInsider - Frontpage News	Rising storage demand from consumers paves the way for 1TB iPhones	https://appleinsider.com/articles/21/04/19/rising-storage-demand-from-consumers-paves-the-way-for-1tb-iphones?utm_medium=rss	Rising storage demand from consumers paves the way for TB iPhonesBuyers of iPhones tend to purchase models with higher storage capacities than their Android counterparts according to analysis of fourth quarter sales a gap that could widen with the introduction of a terabyte model in the iPhone Smartphone users typically desire to have as much storage as possible on their devices in order to hold as much of their digital lives as possible It is thought to be an important criterion for new smartphone buyers alongside screen size cameras and connectivity and demand has gradually increased over time According to a Counterpoint Research report published on Monday the smartphone industry as a whole is experiencing a trend for adopting larger NAND memory capacities on devices After seeing the average NAND capacity pass gigabytes in it is reckoned the industry benefited heavily from price reductions in UFS NAND memory Read more	2021-04-19 12:21:04
海外TECH	Engadget	NASA's Mars helicopter becomes the first aircraft to fly on another planet	https://www.engadget.com/nasa-mars-ingenuity-helicopter-first-flight-124343002.html	NASA x s Mars helicopter becomes the first aircraft to fly on another planetNASA s Ingenuity Mars helicopter has completed its initial flight marking the first time an aircraft has flown on another planet	2021-04-19 12:43:43
海外TECH	Engadget	The UK is considering starting a digital currency	https://www.engadget.com/uk-considering-starting-digital-currency-123546776.html	traditional	2021-04-19 12:35:46
海外TECH	Engadget	Positive Grid Spark Pearl review: A high-tech guitar amp that's easy on the eyes	https://www.engadget.com/positive-grid-spark-special-edition-pearl-practice-guitar-amp-review-123041879.html	Positive Grid Spark Pearl review A high tech guitar amp that x s easy on the eyesThe Positive Grid Spark is one of if not the most high tech practice amp out there and packs a lot of versatility for	2021-04-19 12:30:41
海外TECH	CodeProject Latest Articles	Building Display Ads With Transparent Video	https://www.codeproject.com/Articles/5299466/Building-Display-Ads-With-Transparent-Video	Building Display Ads With Transparent VideoThis article describes the benefits of embellishing web advertisements with compelling transparent video content and also explains why interactive content is useful	2021-04-19 12:58:00
海外科学	NYT > Science	NASA Mars Helicopter Achieves First Flight on Red Planet	https://www.nytimes.com/2021/04/19/science/nasa-mars-helicopter.html	planet	2021-04-19 12:32:47
海外ニュース	Japan Times latest articles	NASA aims for historic helicopter flight on Mars	https://www.japantimes.co.jp/news/2021/04/19/world/science-health-world/mars-helicopter-flight-2/	NASA aims for historic helicopter flight on MarsNASA is hoping to make history early Monday when the Ingenuity Mars Helicopter attempts the first powered controlled flight on another planet The space agency had	2021-04-19 21:40:05
海外ニュース	Japan Times latest articles	As Pfizer talks fail to lift its markets, could Japan see vaccine envy?	https://www.japantimes.co.jp/news/2021/04/19/business/economy-business/japan-covid-19-pfizer-vaccines/	As Pfizer talks fail to lift its markets could Japan see vaccine envy The nation won praise during the pandemic for staying open while others locked down but is now struggling with its inoculation program	2021-04-19 21:23:32
海外ニュース	Japan Times latest articles	Joe Gunkel wins fourth game as Tigers continue to roll	https://www.japantimes.co.jp/sports/2021/04/19/baseball/japanese-baseball/joe-gunkel-wins-fourth-game/	Joe Gunkel wins fourth game as Tigers continue to rollSecond year Hanshin Tigers import Joe Gunkel allowed a run over six innings to improve to as the Central League leading Hanshin Tigers held off the	2021-04-19 21:13:27
ニュース	BBC News - Home	Coronavirus: 'Only sensible' to cancel India trip says Johnson	https://www.bbc.co.uk/news/uk-politics-56800305	covid	2021-04-19 12:10:08
ニュース	BBC News - Home	Fishmongers' Hall inquest: Witness thought terrorist Usman Khan was 'play-fighting'	https://www.bbc.co.uk/news/uk-england-london-56802888	london	2021-04-19 12:20:41
ニュース	BBC News - Home	England's 'big six' agree to join new European Super League	https://www.bbc.co.uk/sport/football/56795811	England x s x big six x agree to join new European Super LeagueArsenal Chelsea Liverpool Manchester City Manchester United and Tottenham are among clubs who agree to join a new European Super League	2021-04-19 12:20:29
北海道	北海道新聞	コロナ下　テレワーク着々　札幌市、本年度も支援制度　自宅リフォーム　関心強く	https://www.hokkaido-np.co.jp/article/534962/	感染対策	2021-04-19 21:13:02
北海道	北海道新聞	宮内庁御用掛、コロナ感染　秋篠宮担当の非常勤職員	https://www.hokkaido-np.co.jp/article/534986/	非常勤職員	2021-04-19 21:03:00
北海道	北海道新聞	米銃撃、日本の名ランナーら支援　マラソン高地合宿地、寄付募る	https://www.hokkaido-np.co.jp/article/534985/	高地	2021-04-19 21:03:00
北海道	北海道新聞	元日生まれの子ヒツジ「ウシ柄くん」　長沼のハイジ牧場でデビュー	https://www.hokkaido-np.co.jp/article/534983/	子ヒツジ	2021-04-19 21:01:39
ビジネス	東洋経済オンライン	世界2位の中国｢リチウム生産企業｣躍進の背景 2020年通期決算は売上微増も純利益は約3倍 | 「財新」中国Biz＆Tech | 東洋経済オンライン	https://toyokeizai.net/articles/-/422105?utm_source=rss&utm_medium=http&utm_campaign=link_back	biztech	2021-04-19 21:30:00
仮想通貨	BITPRESS（ビットプレス）	[techcrunch] 「ブロックチェーンとそのテックは政治から切り離すべき」元米通貨監督庁長官が語る可能性	https://bitpress.jp/count2/3_9_12440	techcrunch	2021-04-19 21:58:28
仮想通貨	BITPRESS（ビットプレス）	[ロイター] 英財務省とイングランド銀、中銀デジタル通貨でタスクフォース	https://bitpress.jp/count2/3_9_12439	財務省	2021-04-19 21:40:25
仮想通貨	BITPRESS（ビットプレス）	ディーカレット、4/19より暗号資産現物取引の取引所サービス提供開始	https://bitpress.jp/count2/3_10_12438	現物取引	2021-04-19 21:30:18