投稿時間:2021-10-02 15:16:26 RSSフィード2021-10-02 15:00 分まとめ(23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	NOAA、海上ドローン船で初のハリケーン内部の様子を撮影。将来の予報用データも取得	https://japanese.engadget.com/noaas-surfing-drone-055031460.html	近く	2021-10-02 05:50:31
TECH	Engadget Japanese	太陽光で充電可能。脱臭・除菌もできる車載用空気清浄機「X21」	https://japanese.engadget.com/x21-air-cleaner-051044056.html	脱臭・除菌もできる車載用空気清浄機「X」「X」のおすすめポイント・太陽光充電可能時間車内に放置すると自動的に消毒スタート・オゾンにより細菌、PM、ホルムアルデヒドを除去可能・USBTypeC充電にも対応走行中の車の内部空気の質が、正常な外部より倍も悪くなる可能性があります。	2021-10-02 05:10:44
ROBOT	ロボスタ	ロボットを導入しやすい「ロボットフレンドリーな環境」の構築へ　森トラストやソフトバンクロボティクスなど4社が経産省の共同検証	https://robotstart.info/2021/10/02/robot-friendly.html	少子高齢化	2021-10-02 05:00:23
js	JavaScriptタグが付けられた新着投稿 - Qiita	Reactでスクロールしたらヘッダーを表示・非表示にするコードを書いたらバグった	https://qiita.com/ke_na/items/707fc0b1df4b8ff6de8b	Reactでスクロールしたらヘッダーを表示・非表示にするコードを書いたらバグったこの記事についてReactでスクロール制御が含まれるヘッダーを作った際にハマったので忘れないように書き残します。	2021-10-02 14:24:22
js	JavaScriptタグが付けられた新着投稿 - Qiita	[Vue3] dataオブジェクトに後からプロパティを追加する時の注意点	https://qiita.com/dropout26/items/589eae8bb74929403719	つずつプロフィール情報をdataオブジェクトに割り当てていくのは面倒なので、ドキュメントオブジェクトを全部dataオブジェクトに全部つっこもうとして初期値が反映されず困っていました。	2021-10-02 14:08:15
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	SQL Server Express 2019 サンプルデータベースのインポートエラー原因	https://teratail.com/questions/362384?rss=all	SQLServerExpressサンプルデータベースのインポートエラー原因前提・実現したいことSQLnbspServernbspExpressnbspに「AdventureWorks」サンプルデータベースをインポートすることです。	2021-10-02 14:59:07
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	配列の長さの取得ができません	https://teratail.com/questions/362383?rss=all	配列の長さの取得ができません前提・実現したいことJavaScriptでトランプゲームのブラックジャックを作っています。	2021-10-02 14:58:19
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	MySQLのcreate table mydb.user (id int, name varchar(10));実行でエラーが出ます。	https://teratail.com/questions/362382?rss=all	MySQLのcreatetablemydbuseridintnamevarchar実行でエラーが出ます。	2021-10-02 14:54:21
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	Laravel8 php artisan migrateができない	https://teratail.com/questions/362381?rss=all		2021-10-02 14:52:15
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	フレネセレの公式が解けない	https://teratail.com/questions/362380?rss=all	フレネセレの公式が解けない前提・実現したいこと曲率と捩率を与えることで、フレネセネの公式を解いて次元の曲線を得ようとしていましたが、出力したグラフが歪んでしまいます。	2021-10-02 14:46:57
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	visual sutdiomに関するエラーメッセージ(初心者）	https://teratail.com/questions/362379?rss=all	visualsutdiomに関するエラーメッセージ初心者Visualnbspsutdioに関する質問先日Cを勉強したいこともあり、Visualnbspsutdioをインストールしたのですが、新規でファイルを作成するとこのようにファイルを読み込めないというエラーメッセージが表示されてしまいます。	2021-10-02 14:43:06
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	WordpressでURL変更した後、投稿インデックスされない	https://teratail.com/questions/362378?rss=all	WordpressでURL変更した後、投稿インデックスされないwordpressのパーマリンク設定を、「カスタム構造」のquotcategorypostnamequotでカテゴリー名投稿名というように設定しています。	2021-10-02 14:09:16
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	Twitter Apiを使用中に起きた Pythonのエラー'None Type'の修正方法が分かりません。	https://teratail.com/questions/362377?rss=all	TwitterApiを使用中に起きたPythonのエラーxNoneTypexの修正方法が分かりません。	2021-10-02 14:05:17
技術ブログ	Developers.IO	Session Manager로 Private EC2 인스턴스에 접속해 보기	https://dev.classmethod.jp/articles/access-private-ec2-with-session-manager/	Session Manager로Private EC 인스턴스에접속해보기안녕하세요클래스메소드김재욱 Kim Jaewook 입니다 이번에는Session Manager로Private EC에접속해보는과정을정리해봤습니다 Session Manager로Pr	2021-10-02 05:45:04
海外TECH	DEV Community	Glass Morphism Simple Interest Calculator Using Pure HTML, CSS & JS.	https://dev.to/technicalvandar885/glass-morphism-simple-interest-calculator-using-pure-html-css-js-414m	Glass Morphism Simple Interest Calculator Using Pure HTML CSS amp JS Simple Interest Calculator Using Pure HTML CSS amp JS SOURCE CODE HTML lt DOCTYPE html gt lt html lang en gt lt head gt lt link rel stylesheet href style css gt lt meta charset UTF gt lt meta http equiv X UA Compatible content IE edge gt lt meta name viewport content width device width initial scale gt lt title gt Simple Interest Calculator lt title gt lt head gt lt body gt lt div class container gt lt h gt Simple Interest Calculator lt h gt lt div class inpSection gt lt div class amt gt lt label for amount gt Enter Total Amount lt label gt lt input type number name amount id amount placeholder Enter Total Amount gt lt div gt lt div class time gt lt label for time gt Enter Time lt label gt lt input type number name time id time placeholder Enter Time gt lt div gt lt div class rate gt lt label for rate gt Rate lt label gt lt input type number name rate id rate placeholder Enter Rate gt lt div gt lt div class button gt lt button onclick Calculate gt Calculate lt button gt lt div gt lt div class result gt lt h id si gt lt h gt lt div gt lt div gt lt div gt lt body gt lt html gt CSS CODE user select none margin padding font family sans serif box sizing border box text decoration none body display grid height vh width place items center background linear gradient deg rgba rgba rgba rgba rgba container text align center border radius px box shadow px px rgba height vh width vw background radial gradient at center rgba rgba container h margin px inpSection margin px px text align left input color rgba font weight outline none border none box shadow px px rgba font size px padding px height px margin px display flex width vw button button padding px margin px px font size px font weight cursor pointer border none outline none box shadow px px rgba result position relative margin px label font weight h font size px function Calculate let p document getElementById amount value let t document getElementById time value let r document getElementById rate value let SI p t r document getElementById si innerHTML The Total Simple Intrest Is SI Youtube TutorialWatch Here Find Me On FacebookYoutubeGithub	2021-10-02 05:50:57
海外TECH	DEV Community	A Beginner's Guide To Solidity - Blockchain Development	https://dev.to/suhailkakar/a-beginner-s-guide-to-solidity-blockchain-development-439b	A Beginner x s Guide To Solidity Blockchain DevelopmentSolidity is an object oriented high level programming language for creating smart contracts on the blockchain that automate transactions The language was created by participants to the Ethereum project when it was proposed in This language is mostly used to make smart contracts on the Ethereum blockchain According to its documentation Solidity is a curly bracket language It is influenced by C Python and JavaScript and is designed to target the Ethereum Virtual Machine EVM Solidity is also considered a dialect of JavaScript This implies that if you know JavaScript learning Solidity should be simple Before learning more about solidity let s understand some basic terms of blockchain Table of ContentsEthereum Virtual MachineSmart ContractEnvironment SetupReserved KeywordsImporting other files in SolidityComments in SolidityVariables in SolidityState variableLocal VariableOperators in SolidityArithmetic OperatorsRelational OperatorsLogical OperatorsConclusion Ethereum Virtual MachineThe Ethereum Virtual Machine EVM is the Ethereum smart contract runtime environment The Ethereum Virtual Machine is focused on providing security and allowing machines all around the world to execute programs Virtual machines effectively create a layer of abstraction between the code and the machine that executes it It is required to promote software portability and to ensure that programs are isolated from one another and from their host The Ethereum Virtual Machine was created to serve as a runtime environment for Ethereum based smart contracts Smart ContractA smart contract is a decentralized program that responds to events by executing business logic The exchange of money delivery of services unlocking of information controlled by digital rights management and other forms of data manipulation such as altering the name on a property title are all possible outcomes of smart contract execution Smart contracts are often written in Solidity Smart contract languages like Solidity cannot be directly executed by the Ethereum Virtual Machine They are instead converted to low level machine instructions called opcodes Now that you have an idea about EVM and Smart Contract we can continue learning about the Solidity Environment SetupBefore installing Solidity you need to make sure that you have Node js and NPM installed on your computer To install node js in your Linux Ubuntu you can follow this article Once you have successfully installed Node js and NPM in your machine you can proceed to install Solidity compiler as below sudo npm install g solc The command above will install the Solcjs and make it available globally throughout the system Now you can runsolcjs versionIf everything goes fine you see something similar to below in your terminal commit eeeda Emscripten clangYou can also use an online editor called Remix IDE to Compile and Run your Solidity code Reserved KeywordsFollowing are the reserved keywords in Solidity abstractafteraliasapplyautocasecatchcopyofdefaultdefinefinalimmutableimplementsininlineletmacromatchmutablenullofoverridepartialpromisereferencerelocatablesealedsizeofstaticsupportsswitchtrytypedeftypeofunchecked Importing other files in SolidityImporting a file in Solidity is similar to JavaScript to import a file you can simply writeimport file All global symbols from the file are imported into the current global scope by the above statement But if you want to create a new global symbol someName with all the global symbols from file as members you can writeimport as someName from file Comments in SolidityJust like other programming languages Solidity support both single line and multi line comments Start the line with to include a single line comment Start with and end with to include a multi line comment This is a single line comment but this is a multi line comment in solidity It is easy right Variables in SolidityThere are mainly two types of variables available in Solidity Local Variables Variables with values that will persist till the function is completedState Variables Variables whose values are kept in a contract storage system permanently State variableState variables store the value permanently in the contract storage Each method should have its own scope and state variables should be declared outside of any defined functions Local VariableA local variable s context is contained within the function and it cannot be retrieved from outside of it These variables are typically used to store temporary values Operators in SolidityOperators are important in every programming language because they establish the groundwork for the programming Similarly the functionality of Solidity is also incomplete without the use of operators Solidity supports the following types of operators Arithmetic OperatorsRelational OperatorsLogical OperatorsBitwise OperatorsAssignment operatorsConditional OperatorsHowever in this article we are going to study only of them but in future article I will try to explain all of them Arithmetic OperatorsThese operators are used to perform mathematical operations OperatorDenotationDescriptionAddition Used to add two operandsSubtraction Used to subtract the second operand from firstMultiplication Used to multiply both operandsDivision Used to divide numerator by denominatorModulus Gives the remainder after integer divisionIncrement Increases the integer value by oneDecrementーDecreases the integer value by one Relational OperatorsThese operators are used to compare two valuesOperatorDenotationDescriptionEqual Checks if two values are equal or not returns true if equals and vice versaNot Equal Checks if two values are equal or not returns true if not equals and vice versaGreater than gt Checks if left value is greater than right or not returns true if greater and vice versaLess than lt Checks if left value is less than right or not returns true if less and vice versaGreater than or Equal to gt Checks if left value is greater and equal than right or not returns true if greater and equal and vice versaLess than or Equal to lt Checks if left value is less than right or not returns true if less and equals and vice versa Logical OperatorsThese operators are used to combine two or more conditionsOperatorDenotationDescriptionLogical AND amp amp Returns true if both conditions are true and false if one or both conditions are falseLogical OR Returns true if one or both conditions are true and false when both are falseLogical NOT Returns true if the condition is not satisfied else falseThis is just part of Web however in the future we will discuss more about the solidity ConclusionThat is it for this article I hope you found this article useful if you need any help please let me know in the comment section Would you like to buy me a coffee You can do it here Let s connect on Twitter and LinkedIn Thanks for reading See you next time	2021-10-02 05:47:06
海外ニュース	Japan Times latest articles	Has Japan’s COVID-19 response really been that bad?	https://www.japantimes.co.jp/opinion/2021/10/02/commentary/japan-commentary/japan-covid19-response/	Has Japan s COVID response really been that bad Mainstream media has painted a bleak narrative about how Japan has handled the pandemic but comparative data shows it has for the most part responded	2021-10-02 14:00:54
ニュース	BBC News - Home	Man City: Khadija Shaw's journey from rebellious schoolgirl to goalscoring sensation	https://www.bbc.co.uk/sport/football/58740997?at_medium=RSS&at_campaign=KARANGA	goalscorers	2021-10-02 05:21:49
北海道	北海道新聞	Ｇ大阪の選手がコロナ陽性　札幌戦は予定通り開催	https://www.hokkaido-np.co.jp/article/595729/	新型コロナウイルス	2021-10-02 14:18:00
海外TECH	reddit	[Post Game Thread] Angels beat the Mariners 2-1!	https://www.reddit.com/r/angelsbaseball/comments/pzp3os/post_game_thread_angels_beat_the_mariners_21/	Post Game Thread Angels beat the Mariners LTBU submitted by u phelinephile to r angelsbaseball link comments	2021-10-02 05:26:12
海外TECH	reddit	[Highlight] Iglesias works around the leadoff double for his 34th save, as the Angels play spoiler over the Mariners in a 2-1 victory	https://www.reddit.com/r/baseball/comments/pzp3hr/highlight_iglesias_works_around_the_leadoff/	Highlight Iglesias works around the leadoff double for his th save as the Angels play spoiler over the Mariners in a victory submitted by u MattO to r baseball link comments	2021-10-02 05:25:47
海外TECH	reddit	If you could send $10,000 and a short message to your 18 year old self what would you write?	https://www.reddit.com/r/AskReddit/comments/pzp1mn/if_you_could_send_10000_and_a_short_message_to/	If you could send and a short message to your year old self what would you write submitted by u imaginary parrot to r AskReddit link comments	2021-10-02 05:21:37
ニュース	THE BRIDGE	Z Venture Capital 創業物語：YJキャピタル創業、突然やってきた社長交代（前半）	http://feedproxy.google.com/~r/SdJapan/~3/oARWdxAvqSc/z-venturecapital-founding-story-the-first-part	ZVentureCapital創業物語YJキャピタル創業、突然やってきた社長交代前半本稿はZVentureCapital代表取締役の堀新一郎氏の手記「ヤフーからZVCに転籍します。	2021-10-02 05:17:40