投稿時間:2022-04-18 11:18:15 RSSフィード2022-04-18 11:00 分まとめ(23件)

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IT	気になる、記になる…	Apple、｢iPhoneのSafariの使い方｣など2本の新たな公式サポート動画を公開	https://taisy0.com/2022/04/18/155907.html	apple	2022-04-18 01:13:03
IT	ITmedia 総合記事一覧	[ITmedia ビジネスオンライン] Z世代に聞いた　友人が多いコミュニティ「学校」や「職場」を上回る1位は？	https://www.itmedia.co.jp/business/articles/2204/18/news061.html	coeto	2022-04-18 10:20:00
python	Pythonタグが付けられた新着投稿 - Qiita	python学習のアウトプット	https://qiita.com/H_M1978/items/4bb27629286156f1c750	私自身	2022-04-18 10:48:22
js	JavaScriptタグが付けられた新着投稿 - Qiita	ShopifyデータをHTMLベースでJSへ渡す方法	https://qiita.com/Shopify_ojisan/items/f163618bf5ef8e118b46	liquiddatajs	2022-04-18 10:24:23
技術ブログ	Developers.IO	【5/18（水）リモート】クラスメソッドの会社説明会〜フリーランスエンジニア編〜を開催します	https://dev.classmethod.jp/news/jobfair-freelance-220518/	事業会社	2022-04-18 01:49:04
技術ブログ	Developers.IO	AWS の各サービスで使用されている URL は公開されていますか？	https://dev.classmethod.jp/articles/tsnote-aws-is-the-url-used-by-each-aws-service-publicly-available/	通信環境	2022-04-18 01:22:18
技術ブログ	Developers.IO	セキュリティグループで SecurityGroups ID指定のルールだと通信が許可されません。なぜでしょうか？	https://dev.classmethod.jp/articles/tsnote-securitygroups-communication-is-not-allowed-in-a-security-group-if-the-rule-specifies-securitygroups-id/	securitygroupsid	2022-04-18 01:16:33
海外TECH	DEV Community	The Best Programming Language For App Development In 2022	https://dev.to/hnodes/the-best-programming-language-for-app-development-in-2022-4ibk	The Best Programming Language For App Development In Do you know how often you check your smartphone in a day  No Well according to several standard reports that s an astounding times a day At least for us millennials…The rest of the population is a little saner And the reason we are so addicted to our phones is the overwhelming sensory experience they provide in our daily lives How so you ask Facebook Instagram Twitter YouTube WhatsApp need I go on  So in a nutshell smartphone apps are an integral part of our daily lives They can be used to create connections obtain information or just have fun And while creating a smartphone app is also fun it requires a little more guidance specifically in choosing the right programming language That s why this article deals with the top programming languages required for Android App Development Android because I like it  Read More The Best Programming Language For App Development In	2022-04-18 01:33:37
海外TECH	DEV Community	Miniexcel Dynamic Query Totuial	https://dev.to/shps951023/miniexcel-dynamic-query-totuial-7d6	Miniexcel Dynamic Query Totuial	2022-04-18 01:32:00
海外TECH	DEV Community	Operator "as" in Rust / Operador "as" en Rust	https://dev.to/mateolafalce/operador-as-en-rust-5k1	Operator quot as quot in Rust Operador quot as quot en RustMain code fn main let solana mining amount f float let solana mining amount int u solana mining amount floor as u int println solana mining amount println solana mining amount int let unsigned integer u let signed integer i unsigned integer as i println signed integer The as operator has as its main function to transform the types of variables to other types of variables Strictly speaking we could assign on a new line a change of type to a variable In the event that the variable is not float we can use it as follows let unsigned integer u unsignedlet signed integer i unsigned integer as i signedprintln signed integer But when we need to change the assignment type to a float variable we will use the as operator as follows let solana mining amount f floatlet solana mining amount int u solana mining amount floor as u intIn let solana mining amount int you specify that you want to switch to u Then the variable to change solana mining amount is specified with floor since when dealing with float variables we are going to need the base of the number in this case to then be able to use the as operator and assign the transformation of the variable Código principal fn main let solana mining amount f float let solana mining amount int u solana mining amount floor as u int println solana mining amount println solana mining amount int let unsigned integer u let signed integer i unsigned integer as i println signed integer El operador as tiene como principal función transformar los tipos de variables a otros tipos de variables En sentido estricto nosotros podríamos asignar en una nueva linea un cambio de tipo a una variable En el caso de que la variable no sea float podremos utilizarlo de la siguiente manera let unsigned integer u unsignedlet signed integer i unsigned integer as i signedprintln signed integer Pero cuando necesitamos cambiar de tipo de asignación a una variable float utilizaremos el operador as de la siguiente manera let solana mining amount f floatlet solana mining amount int u solana mining amount floor as u intEn let solana mining amount int se especifica que se quiere cambiar a u Luego se especifica la variable a cambiar solana mining amount con floor ya que al tartar con variables float vamos a necesitar de la base del numero en este caso para luego poder utilizar el operador as y asignar la transformación de la variable	2022-04-18 01:16:21
海外TECH	DEV Community	Using Redis Cloud in your NextJS application	https://dev.to/rainforss/using-redis-cloud-in-your-nextjs-application-39f2	Using Redis Cloud in your NextJS applicationRecently a Youtuber and Javascript influencer FireShip released a tutorial of utilizing Redis Enterprise Cloud as a high speed cloud data storage in a NextJS web application and the tutorial attracted hundreds of thousand of views on the internet Although I was on the fence about using an in memory database as the main database for a full stack application the Redis Enterprise Cloud service offer together with a voucher had me interested enough to try it as a runtime cache of a NextJS application I built for a product demo to York University Arriving at Redis Enterprice Cloud service offering page I picked the free tier since I was not certain if I would start spending the credit yet The free service tier as you would imagine for anything that is free does not offer a lot MB RAM for dedicated database with maximum concurrent connections maximum connections may not seem like an issue as long as you are not building an application that has specific requirements for concurrency This statement could be true if we are establishing connections between a Node server and a Redis cache since it is recommended that only one or two Redis client would be instantiated then reused in the Node server In this case there is a limited number of connections clients are connections in Redis needed when the server is running and communicating with Redis However things are very different if you are using Redis Enterprise Cloud in a NextJS application and having your backend services orchestrated using the Serverless Functions If you do not understand the basics of NextJS and Serverless Functions enough you would encounter this error and never understand the cause of it ERR max number of clients reachedIf I am only connecting to Redis with one application how is it possible that all connections are occupied Let s look at some code before I reveal the answer import Client Entity Schema Repository from redis om const client new Client async function connect if client isOpen await client open process env REDIS URL This is a code piece copied from Fireship s tutorial It instantiates a Redis client with the help of Redis OM library and declares a connect function which can be used to establish a connection between the client and Redis As the code specifies the connect function will only attempt to open a connection if no open connections exist between the client and Redis const client createClient url process env REDIS URL export const connect async gt if client isOpen console log Already connected to Redis return await client connect console log Connected successfully This is another code piece if the Node Redis library is being used There are slight differences but the logic is the same open a connection only if there is no existing connection established between the client and Redis Either piece of code makes sense on paper here since the code only gets executed once when the application is up and running only one instance of client is created and the connect function will create the connection only once no matter how many times it is called right Wrong Remember that NextJS s Serverless Functions and Edge Functions are executed in a highly dynamic environment based on resource allocation meaning the environment where the functions are executed will not be the same as the environment where your NextJS was built and deployed in e g Vercel Netlify etc Therefore when you are creating NextJS API routes these routes are realized by serverless functions if the NextJS app is deployed in Vercel Netlify or similar platforms under the pages api folder to have them call the connect function and then interact with data in Redis it is almost inevitable that every serverless function execution will be in a different environment where the connection to Redis has not been opened before With this setup each serverless function invocation because of API calls will attempt to create a unique connection to your Redis Cloud database Theoretically invocations of serverless functions which try to connect to Redis could exhaust the allowed number of connections for free tier To make things worse Redis does not have a default setting for connection timeout so the connections created will be kept alive unless your client side code does the clean up If you are already stranded with Redis Cloud having maximum number of connections connect to Redis Cloud using RedisInsights and run the CLIENT KILL TYPE normal command to evict all the basic connections In a serverless NextJS application setup it is imperative to always close the connection after your code finishes interacting with Redis data To complete my tutorial here is an example setup I am using to handle Redis connections and interactions in a NextJS app supported by serverless functions Initialize the Redis client in global execution context to ensure uniqueness of the clientlet client global redis If no Redis client is found create the client using Redis connection stringif client client global redis createClient url process env REDIS URL Open connection only when there is no existing connectionexport const connect async gt if client isOpen console log Already connected to Redis return await client connect console log Connected successfully Close connection only when there is an existing connectionexport const disconnect async gt if client isOpen return await client quit console log Disconnected Retrieve the cached dataexport const getcache async gt const cache await redis get cacheBetachSite return cache The comments are pretty self explanatory so I will not go into too much details here If you are wondering how these helper functions are being used in API routes or NextJS SSG SSR functions here are two examples NextJS SSG SSR functionsexport const getStaticProps GetStaticProps async gt try await connect const cachedData await getcache await disconnect return props cachedData catch error any console log error message return props error API routes supported by serverless functionsexport default async function demoRoute req NextApiRequest res NextApiResponse try await connect const cachedData await getcache await disconnect return res status json cachedData catch error any return res status json error Unknown error Being a part of the IT community we have the blessing that one can always find tutorials or documentations about a variety of technologies and tools however tutorials or documentations might not always fit into each individual s own use case seamlessly Be adventurous and diligent always do your own recon before following others footprints	2022-04-18 01:10:02
海外TECH	DEV Community	Beginner Python Game: Connect Four	https://dev.to/haseebgarfinkel/beginner-python-game-connect-four-7g5	Beginner Python Game Connect FourAs my second project I wanted to try recreating a simple game to expand my knowledge on basic python The code here was mainly contained in a couple different functions that each controlled a different part of the game such as a function to drop a piece into a column and a function to check for a winner Link to GithubAs I am still a very new programmer I would really appreciate any advice and tips you could give me in the comments Thank you	2022-04-18 01:06:00
ニュース	ジェトロ ビジネスニュース（通商弘報）	ロシアとウクライナの衝突、国際貨物列車の中欧班列にも影響	https://www.jetro.go.jp/biznews/2022/04/7c5f079313fbcbf7.html	貨物列車	2022-04-18 01:45:00
海外ニュース	Japan Times latest articles	Global investors flee China fearing that risks eclipse rewards	https://www.japantimes.co.jp/news/2022/04/18/business/financial-markets/global-investors-flee-china/	Global investors flee China fearing that risks eclipse rewardsA growing list of risks is turning China into a potential quagmire with the central question being what could happen when the country goes to	2022-04-18 10:40:22
海外ニュース	Japan Times latest articles	‘This is my third war’: Ukraine’s elderly are conflict’s forgotten victims	https://www.japantimes.co.jp/news/2022/04/18/world/third-war-ukraine-elderly-forgotten-victims/	This is my third war Ukraine s elderly are conflict s forgotten victimsCut off from their families and sometimes unable to use telephones or communicate the country s older generations are particularly vulnerable amid the bloody war	2022-04-18 10:31:08
海外ニュース	Japan Times latest articles	No longer business as usual: The deteriorating Sino-EU relationship	https://www.japantimes.co.jp/news/2022/04/18/world/eu-china-deteriorating-ties/	No longer business as usual The deteriorating Sino EU relationshipIt was a meeting that was supposed to emphasize the need for cooperation on global challenges Instead an EU China summit earlier this month highlighted their	2022-04-18 10:30:43
海外ニュース	Japan Times latest articles	Ukrainians defy Russian surrender demand in Mariupol on ‘Easter of war’	https://www.japantimes.co.jp/news/2022/04/18/world/ukrainians-russian-surrender-mariupol-easter-of-war/	Ukrainians defy Russian surrender demand in Mariupol on Easter of war Capturing Mariupol would be a prize for Russia connecting territory held by pro Russian separatists with the Crimean region Moscow annexed in	2022-04-18 10:15:47
ニュース	BBC News - Home	Rwanda asylum critics have no solutions, says Patel	https://www.bbc.co.uk/news/uk-61137081?at_medium=RSS&at_campaign=KARANGA	canterbury	2022-04-18 01:06:43
ビジネス	ダイヤモンド・オンライン - 新着記事	週4日労働制なるか、米加州で法案提出 - WSJ発	https://diamond.jp/articles/-/301813	法案提出	2022-04-18 10:04:00
GCP	Google Cloud Platform Japan 公式ブログ	ミスミグループ本社：SAP S/4HANA を Google Cloud へ移行、基幹システムのマルチクラウド化を実現	https://cloud.google.com/blog/ja/topics/customers/misumi-realization-of-multi-cloud-computing-for-mission-critical-systems/	そのために必要な技術的な提案やサポートを、GoogleCloudには期待しています」と話します。	2022-04-18 02:00:00
マーケティング	MarkeZine	2022年、マーケティング担当者が最も優先すべきことは「ブランド認知の向上」【ニールセン調査】	http://markezine.jp/article/detail/38807	認知	2022-04-18 10:15:00
マーケティング	AdverTimes	子どもの手紙に働く父母の共感　カロリーメイトWebCM	https://www.advertimes.com/20220418/article381928/	調査	2022-04-18 01:54:52
GCP	Cloud Blog JA	ミスミグループ本社：SAP S/4HANA を Google Cloud へ移行、基幹システムのマルチクラウド化を実現	https://cloud.google.com/blog/ja/topics/customers/misumi-realization-of-multi-cloud-computing-for-mission-critical-systems/	そのために必要な技術的な提案やサポートを、GoogleCloudには期待しています」と話します。	2022-04-18 02:00:00