投稿時間:2022-11-19 02:18:04 RSSフィード2022-11-19 02:00 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
js	JavaScriptタグが付けられた新着投稿 - Qiita	クリック時に他の要素がblurする前に処理を実行する	https://qiita.com/zinc0765/items/0dbb8b9ccf54bea68386	element	2022-11-19 01:40:26
js	JavaScriptタグが付けられた新着投稿 - Qiita	JavaScriptの要素のイベント発火順序	https://qiita.com/zinc0765/items/2380f6872221faafaee4	ntobjectsandwindowobject	2022-11-19 01:39:34
海外TECH	MakeUseOf	7 Common Email Security Protocols Explained	https://www.makeuseof.com/tag/common-email-security-protocols-explained/	security	2022-11-18 16:05:15
海外TECH	DEV Community	Wheatcha - MVP release! A catalogue of the best tech videos on YouTube.	https://dev.to/nordicbeaver/wheatcha-mvp-release-a-catalogue-of-the-best-tech-videos-on-youtube-3aok	Wheatcha MVP release A catalogue of the best tech videos on YouTube What s Wheatcha Don t know about you guys but I love watching programming and IT videos on YouTube So much that at one point I found myself in some kind of a tutorial hell people keep talking about I managed to escape it but I still appreciate how much free content people are producing every day But there is one big problem It s not that easy to find a video about a topic you re interested in And even if you find a couple there is no quick way to know how good they are Especially now that YouTube removed dislikes That s why we decided to create Wheatcha A catalogue of tech related videos with tags ratings reviews and more So that you can easily find the best React video of that is a complete step by step tutorial and also TypeScript is used And today we released the first MVP version of the platform Obviously not all the features are there yet but we were just too curious to see if someone likes the idea Our plansThe roadmap is pretty big Here are some of the features we re planning to implement nextWay bigger library Complex search with multiple filters User reviews Design updates And more We could also use some help from the community If you think your favorite youtuber is missing just let us know in the comments and we will gladly add their videos Any suggestions regarding functionality design tags would also be greatly appreciated Or feel free to just say hi if you think a platform like this would be useful to you See you on Wheatcha	2022-11-18 16:42:02
海外TECH	DEV Community	Serverless tools cut both ways	https://dev.to/aws-builders/serverless-tools-cut-both-ways-7o2	Serverless tools cut both waysAs Serverless developers we often take our tools for granted We press serverless deploy or cdk deploy sip some coffee and it all just works But in reality we re wielding powerful managed services and infrastructure as code the underlying systems which actually run our software are abstracted away from us and that s kind of the point These tools give us zero downtime deployments rollbacks and zero to large scale compute right out of the box It s amazing These magical abstractions also mean that we often forget that our tools are sharp Like a knife used absentmindedly we ll occasionally leave unsafe defaults in place from development to production That s not a bad thing necessarily But sharp tools can unpredictably cut us And unlike chef knives software is constantly shifting I love getting stuff for freeServerless developers have the benefit of cloud providers deploying new features which improve our experience and reduce costs Recently AWS introduced Graviton for Lambda which leverages their custom ARM based processor Using Graviton AWS says that users can see better performance at lower cost and many users wouldn t even have to change any of their code at all At my day job at DataDog we quickly rolled out ARM compatible versions of the DataDog Extension and our IaC integrations like the Serverless Plugin and the CDK Construct Before long a bug was reported by some folks from Vercel and I started digging in At first it seemed like a simple bug switching from x to arm based Lambda functions caused unix launch errors It appeared as though an x based binary extension was being applied to an arm based function These binaries are incompatible as x and arm have different instruction sets I was able to reproduce the issue and started to suspect the CloudFormation template generated by the CDK construct That s impossible But the CloudFormation template was correct I couldn t create a condition where we d erroneously match up the ARM function with x Lambda Extension or vice versa It was frustrating No matter what the template said for a few seconds during the deployment the Lambda function would fail to initialize with a unix process launch error At this point I had a hunch that this wasn t a bug per se rather a sharp edge around CloudFormation and the Lambda control plane I decided to try to reproduce this issue with the Serverless Framework It also relies on CloudFormation but generates different CloudFormation templates and would rule out the existence of a bug in the CDK construct I created a demo project and was able to reproduce this immediately With two reproducible cases I filed an AWS support ticket After some back and forth with the support team my case ended with a Chime call to the Lambda Workers team They were super helpful and pointed out that CloudFormation deployments result in two important API calls to different systems an updateFunction call and updateFunctionConfiguration call These API calls happen in parallel so the updateFunction call is updating the Lambda Function code and architecture while the updateFunctionConfiguration call is setting layers extensions as well as environment variables tags and things like timeout value and memory This race condition is inherent to Lambda and CloudFormation today and can occur for Layers Extensions Environment Variables or tags Ultimately we can entirely avoid this failure mode by adhering to best practices For any production system you should never directly invoke the unqualified function ARN This means specifically rolling out changes to a new Lambda function version or alias and then mapping that version to your integration API Gateway SQS SNS EventBridge etc Qualified ARN arn aws lambda aws region acct id function helloworld Unqualified ARN arn aws lambda aws region acct id function helloworld Developer ErgonomicsI freely admit that this is harder to do than simply invoking LATEST There s a reason multi phase deployments are not the default for these IaC tools In many cases you ll need to deploy twice once to update the function code configuration and once to update your integration to point to the new function Of course if you ve split your stacks this would already be your deployment practice But fundamentally I don t think this is your fault developer We need sensible defaults that include best practices We need less risky IAM policies and we need safer deployments We need to demand more ergonomic tools Wrapping upAlthough we probably can use serverless deploy or cdk deploy with regular unversioned function ARNs in a lot of cases we need to remember that we re orchestrating load balancers messaging queues and complex integrations These are complex systems with complex failure modes and these failure modes don t often appear in development environments and will only burn us in production Our tools need to improve as well Both CDK and Serverless could have interactive deployments to roll out new Lambda function versions CloudFormation can and should detect when function code and function configuration changes are being deployed simultaneously and warn or require versioned functions be used I d love to see this particular sharp edge documented in the cdk best practices Until then let s agree not to point all our traffic straight to LATEST Our tools are sharp and we use them regularly but it s important not to forget that we can cut ourselves That s all I ve got for you today If you ve been burned by this or other Serverless side effects feel free to reach out to me on twitter and let me know	2022-11-18 16:26:14
海外TECH	DEV Community	5 ways to improve the performance of Node.js API	https://dev.to/qbentil/5-ways-to-improve-the-performance-of-nodejs-api-230d	ways to improve the performance of Node js APIToday majority of the Applications you see around are API Centric An application that uses application programming interfaces APIs to communicate data with other apps is known as an API centric application The frontend and backend of this kind of program can communicate with one another Most of these API s are build using NodeJS because of its speed ease of development etc As a developer I find it a high priority to ensure my API has the best performance In this article I will be showing you key tips to optimize the performance of your Node js API PrerequisitesTo be able get the best out of this article You need to be familiar with the following Node JSHow to develop an API using Node Let s get started NodeJS comes with a lot of packages in building applications It sometimes becomes frustrating moving from one site to the other looking for implementations of such packages in your app askyourcode is one powerful code search engine I use for such implementations It helps you to search through a large codebase on how to implement a particular package or your personal codebase You can check it out Use Asynchronous FunctionsAsync functions are important functions used in JavaScript In writing code the best you can do to optimize CPU usage is to write asynchronous functions to perform nonblocking I O operations If you application heavily uses I O operations It becomes very important to make use of Async function Async functions make it possible for the CPU to handle multiple operations at the same time Stateless Authenticationstateless client side authentication uses JSON Web Token JWT OAuth and other techniques which boosts application performance greatly Every time a user logs into the website using this Stateless Authentication method a web token is generated It holds all the necessary user data which is transmitted back to the appropriate user for each API request s authentication Avoid Sessions and Cookies in APIs and Send Only Data in the API Response JWT is a JSON based security token for API Authentication OAuth is not an API or a service rather it s an open standard for authorization OAuth is a standard set of steps for obtaining a tokenError Handling middlewareWhenever a server error occurs Express js detects it and unless you have your own custom error handler uses its built in error handler to send a response to the client with the error message This built in error handling by express can be sometimes harmful by exposing config information to your API users which can be dangerous when app is on production Not only do custom error handlers handle errors properly but also to correctly empty away any unused resources when the application starts up again check out my article on Custom Error Handlers for how to implement this Optimize Database QueriesData in a database can grow huge with time During this period you will realize your API takes a longer time to fetch data when requested This is as a result of bad query Bad queries can reduce the overall performance of your API Example of a Bad QueryUsers find email sbentil gmail com explain executionStats What makes a good Query INDEXINGIndexing is a technique for improving a database s performance by reducing the number of disk accesses necessary during query processing It is a data structure method for finding and quickly accessing the data in a database Several database columns are used to generate indexes Example of a Good Querymodel getCollection user createIndex email name shadrack unique true createdCollectionAutomatically false numIndexesBefore numIndexesAfter ok Reduce latency via CachingOne popular method for enhancing Node Js performance is caching Both client side and server side web applications can use caching However because it supports JavaScript CSS sheets HTML pages and other features server side caching is the most popular option for improving Node Js efficiency Web applications typically use caching to speed up data retrieval In building API caching can be done using RedisRedis optimizes the APIs response time by storing and retrieving the data from the main memory of the server It increases the performance of the database queries which also reduces access latency ConclusionHappy Hacking Bentil hereWhich of the methods me Comment it mentioned do you use already Share your experience below It might be helpful to someone else too I will be glad to hear from you in the comment section If you find this content helpful Please Like comment and share	2022-11-18 16:23:51
Apple	AppleInsider - Frontpage News	Flash deal: Apple's loaded M1 Max 16-inch MacBook Pro drops to record low price for 24 hours	https://appleinsider.com/articles/22/11/18/flash-deal-apples-loaded-m1-max-16-inch-macbook-pro-drops-to-record-low-price-for-24-hours?utm_medium=rss	Flash deal Apple x s loaded M Max inch MacBook Pro drops to record low price for hoursPacked with upgrades including a core GPU this M Max MacBook Pro inch is off thanks to an early Black Friday flash deal Save on Apple s M Max MacBook Pro The high end retail spec MKALL A in Space Gray features Apple s top of the line M Max chip with a core CPU and core GPU It also has GB of unified memory and a TB SSD making it a robust system for content creators and business users Read more	2022-11-18 16:04:14
Cisco	Cisco Blog	Network + Security = Connected & Protected	https://blogs.cisco.com/partner/network-security-connected-protected	Network Security Connected amp ProtectedCo Author Frank Lento  Sr Director Global Security Sales Partnerships Ecosystems Cisco Partner Summit has ended but we continue to build on the momentum and excitement around our security innovations and announcements Jeetu Patel Emma Carpenter and Shaila Shankar took the stage to highlight our partner profitability programs and the opportunities around the firewall refresh	2022-11-18 16:00:52
金融	金融庁ホームページ	金融機関における貸付条件の変更等の状況について更新しました。	https://www.fsa.go.jp/ordinary/coronavirus202001/kashitsuke/20200430.html	金融機関	2022-11-18 17:00:00
金融	金融庁ホームページ	「新型コロナウイルス感染症関連情報」特設ページを更新しました。	https://www.fsa.go.jp/ordinary/coronavirus202001/press.html	感染拡大	2022-11-18 17:00:00
金融	金融庁ホームページ	金融安定理事会による「クロスボーダー送金の目標達成に向けた実装方法の策定：最終報告書」について掲載しました。	https://www.fsa.go.jp/inter/fsf/20221118/20221118.html	目標達成	2022-11-18 17:00:00
金融	金融庁ホームページ	「保険会社向けの総合的な監督指針」等の一部改正（案）に対するパブリックコメントの結果等について公表しました。	https://www.fsa.go.jp/news/r4/hoken/20221118/20221118.html	保険会社	2022-11-18 17:00:00
金融	金融庁ホームページ	金融審議会「ディスクロージャーワーキング・グループ」（第３回）を開催します。	https://www.fsa.go.jp/news/r4/singi/20221125.html	金融審議会	2022-11-18 17:00:00
金融	金融庁ホームページ	ジャパン・コーポレート・ガバナンス・フォーラム」の設置について公表しました。	https://www.fsa.go.jp/singi/japan_corporate_governance_forum/index.html	設置	2022-11-18 16:59:00
ニュース	BBC News - Home	Zara Aleena murder: Jordan McSweeney admits kicking law graduate to death	https://www.bbc.co.uk/news/uk-england-london-63599799?at_medium=RSS&at_campaign=KARANGA	graduate	2022-11-18 16:02:37
ニュース	BBC News - Home	World Cup 2022: Alcohol sales banned at World Cup stadiums in Qatar	https://www.bbc.co.uk/sport/football/63674631?at_medium=RSS&at_campaign=KARANGA	World Cup Alcohol sales banned at World Cup stadiums in QatarAlcohol will not be sold to fans at the World Cup s eight stadiums in Qatar after Fifa changes its policy two days before the start of the tournament	2022-11-18 16:49:23
ニュース	BBC News - Home	Police errors contributed to Solihull deaths	https://www.bbc.co.uk/news/uk-england-birmingham-63680822?at_medium=RSS&at_campaign=KARANGA	august	2022-11-18 16:51:12
ニュース	BBC News - Home	Iranian protesters set fire to Ayatollah Khomeini's house	https://www.bbc.co.uk/news/world-middle-east-63681472?at_medium=RSS&at_campaign=KARANGA	ancestral	2022-11-18 16:33:25
ニュース	BBC News - Home	Jon Lewis named as England women's head coach	https://www.bbc.co.uk/sport/cricket/63674345?at_medium=RSS&at_campaign=KARANGA	coach	2022-11-18 16:01:59
ニュース	BBC News - Home	Seven-time champion Ronnie O'Sullivan thrashed 6-0 by Ding Junhui at UK Championship	https://www.bbc.co.uk/sport/snooker/63681208?at_medium=RSS&at_campaign=KARANGA	Seven time champion Ronnie O x Sullivan thrashed by Ding Junhui at UK ChampionshipSeven time champion Ronnie O Sullivan is out of the UK Championship after suffering a shock quarter final defeat by Ding Junhui	2022-11-18 16:38:43
ニュース	BBC News - Home	Abu Dhabi Grand Prix: FIA 'not shy' of investigating Sergio Perez Monaco crash	https://www.bbc.co.uk/sport/formula1/63681370?at_medium=RSS&at_campaign=KARANGA	Abu Dhabi Grand Prix FIA x not shy x of investigating Sergio Perez Monaco crashFormula s governing body the FIA is prepared to investigate whether Sergio Perez deliberately crashed in Monaco Grand Prix qualifying	2022-11-18 16:28:49
北海道	北海道新聞	米、ＩＣＢＭ「強く非難」　挑発行為停止と対話要求	https://www.hokkaido-np.co.jp/article/762913/	挑発行為	2022-11-19 01:07:00
北海道	北海道新聞	新濱、豪快な滑り取り戻す　スピードスケート全日本選抜競技会帯広大会	https://www.hokkaido-np.co.jp/article/762911/	全日本選抜	2022-11-19 01:01:00