投稿時間:2021-06-26 02:26:27 RSSフィード2021-06-26 02:00 分まとめ(29件)

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Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	GASで画像URLからダウンロードしようと思っています。	https://teratail.com/questions/346160?rss=all	しかし、getrangeから取得した画像URLではerrorになります。	2021-06-26 01:56:05
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	スクロールしても固定で表示されるボタン	https://teratail.com/questions/346159?rss=all	表示	2021-06-26 01:38:13
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	Android向けアプリ開発にSQLの知識は必要なのでしょうか？	https://teratail.com/questions/346158?rss=all	Android向けアプリ開発にSQLの知識は必要なのでしょうかAndroid向けアプリの作成を目指して、市販の教科書の学習を進めているのですが、データベースへのアクセスという項目にてSQLiteデータベースを用いた内容が登場し、SQLの知識がないため手が止まってしまいました。	2021-06-26 01:38:13
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	gem install 実行時エラーの解決方法が分からない	https://teratail.com/questions/346157?rss=all	geminstall実行時エラーの解決方法が分からないgemnbspinstall実行時エラーの解決方法を教えてほしいgemnbspinstallnbsprailsnbspvnbspquotquot実行時以下のエラーが発生します。	2021-06-26 01:32:57
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	LaravelとReactを利用してTodoリストの編集処理	https://teratail.com/questions/346156?rss=all	LaravelとReactを利用してTodoリストの編集処理前提・実現したいこと前提LaravelとReactを利用してTodoリストを作成しております。	2021-06-26 01:30:26
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	承継した子クラスで親クラスのメソッドを呼び出したい	https://teratail.com/questions/346155?rss=all	承継した子クラスで親クラスのメソッドを呼び出したい下記のようにpdoconnectの親クラスに存在するクラスを承継した子クラスをインスタンス化して呼び出したいのですが、うまく実装することができません。	2021-06-26 01:21:24
Linux	CentOSタグが付けられた新着投稿 - Qiita	RHEL 互換ディストリビューションのリリース日一覧	https://qiita.com/maya_shack/items/c63af5aaab44d6b33fda	RHEL互換ディストリビューションのリリース日一覧RedHatEnterpriseLinuxのクローンであるCentOSがああいうことになったので、CentOSから移行するときや新規導入のときに、RHEL互換ディストリビューションのどれにしようかな、と選ぶ機会があるかもしれません。	2021-06-26 01:37:07
海外TECH	DEV Community	Amazing Websites to learn something new every day! A thread🧵👇	https://dev.to/manitej/amazing-websites-to-learn-something-new-every-day-a-thread-nf0	Amazing Websites to learn something new every day A threadthis article is generated using give a Manitej twlog This is a web app that converts Twitter threads into blogs in a single click twlogThis is a webapp which convert twitter threads into dev to blogs in a single clickAcknowledgementstwitter api client View on GitHub Swastika swastika Amazing Websites to learn something new every day A thread PM Jun Swastika swastika Read Something GreatDishes out links to timeless articles on the internet It serves them at a time Smash the Change My Reads button and it ll serve you more readsomethinggreat com PM Jun Swastika swastika Ted EdTED Ed is TED s youth and education initiative Find lessons worth sharing ed ted com PM Jun Swastika swastika ZidbitsScience Wierd History Fun Facts News This site has it all zidbits com PM Jun Swastika swastika LifehackerA weblog about life hacks and software Lifehacker is the ultimate authority on optimizing every aspect of your life Do everything better lifehacker com PM Jun Swastika swastika AlisonProvides free online courses to upskill yourself alison com PM Jun Swastika swastika CoolTools Best Magazine articles everFind some of the best magazine pieces from the past all in one place kk org cooltools best… PM Jun	2021-06-25 16:33:34
海外TECH	DEV Community	🎬Login & Registration Form Using HTML & CSS & JS✨	https://dev.to/robsonmuniz16/login-registration-form-using-html-css-js-5e1j	Login amp Registration Form Using HTML amp CSS amp JSIn today s episode we re going to make an awesome login and registration form with sliding animation just by using HTML and CSS and little bit of JavaScript Recommended Videos Neumorphism Login Form HTML amp CSS ➤Animated Sidebar Menu with HTML amp CSS ➤Watch Amazing Social Media Buttons Hover Effects HTML amp CSS ➤ Animated Login Form HTML CSS amp JavaScript ➤Watch Slider Sign In Sign Up Form HTML CSS Vanilla JS ➤Watch Follow me on	2021-06-25 16:27:52
海外TECH	DEV Community	The Real Cost of UI Components Revisited	https://dev.to/this-is-learning/the-real-cost-of-ui-components-revisited-4d23	The Real Cost of UI Components RevisitedWith my focus recently going back to look at optimization for the Solid release I thought I d revisit my The Real Cost of UI Components article When I wrote the original article I wasn t really sure what I d find and I was a bit cautious not wanting to offend anyone I let every framework have their showcase at level and then just built on that The shortcoming of not equalizing the implementations is I didn t actually show the tradeoffs of the Virtual DOM and I completely glazed over the overhead of Web Components So I wanted to look at this again with that in mind Why now I recently have been benchmarking Stencil and the new Lit And it was sort of bugging me since neither of these support Native Built ins This is a problem since with a benchmarks using HTMLTableElements meant they can t just insert random Custom Elements So these implementations were all done in a single large Component I wanted to see if I could better approximate the way these scale Mandatory Disclaimer I wrote Solid but I did not create this benchmark Take it for what it is I hope that your takeaway is more than Solid is fast Different technologies scale differently and that should be where the focus is The SetupThe test is once again a modification of JS Frameworks Benchmark This is our TodoMVC app on steroids It will blast our implementations with some absurd data but we will quickly be able to see any bottlenecks The important thing to note is given the limitation of around Native built ins we will be using hand optimized Web Component solutions This means better performance than you d typically find for Lit So things are slightly skewed in its favor but it s the best I can do When I first started I did the tests on the new M Macbook Air but given the issues with applying CPU throttling known issue I also ran these on a Intel i Macbook Pro This muddies the narrative a little but it can help view the difference between running on the latest greatest and on a slower device via CPU throttling The ScenariosLevel The whole benchmark is implemented in a single Component Level A Component is made per row and per button Level Each row is further subdivided into Cell Components for each of the four table columns and the remove Icon is also made into a Component The Contenders Inferno The one of the quickest Virtual DOM library around While different than React it boasts React compat and will serve as our proxy for VDOM libraries in this test Source Lit Google backed Tagged Template render library Given the lack of support for Native Built ins I m using optimized hand written Custom Element wrappers I also kept explicit event delegation in which is an advantage compared to every non vanilla implementation Source Solid Fastest runtime reactive library It s Components are little more than factory functions so this should serve as a good comparison Source Svelte Generates the smallest bundles with clever use of its compiler It has its own component system as well Source vanillajs Not a framework just the core implementation I take the standard implementation and then layer on Web Components as we level up BenchmarkingInstead of focusing a framework at a time I think it will be easier to just look at this in terms of levels Relative positioning speaks a lot more to the trends Since our baseline is moving with us by using Vanilla JS with Web Components even though libraries are getting slower as we add more components by how much differs We are going to make heavy use of looking at the averaged geometric mean the bottom row to holistically look at how these libraries compare It is important to look at the individual results for more information but this gives us an easy way to determine relative positioning Level All in OneOne component app is all you get While for most libraries this is the most optimal version this is not true of the VDOM where components are really important for managing update performance MIntel w SlowdownsThis is probably the worst you ve ever seen Inferno perform and it s not its fault This is what would happen if everyone wrote VDOM code the way it is described in Rich Harris The Virtual DOM is pure overhead Hopefully most people don t do that It actually isn t bad for most things but really takes a hit on the selection benchmark and where the updates are more partial Level Rows and ButtonsThis is what I d consider the pretty typical scenario for a lot of frameworks in terms of the component breakdown The VDOM now has enough components to operate MIntel w SlowdownsThanks to adding Web Components to Vanilla the gap between it and Solid has disappeared Inferno is significantly faster now that it has enough components The gap between Lit Svelte and Vanilla are keeping pace So it looks like their components have comparable cost Level Components R UsAt this level every table cell is a Component This breakdown might seem a bit extreme to some In Virtual DOM land we are used to this sort of wrapping Things like Styled Components and Icon libraries push us to these patterns without flinching Just how expensive is this MIntel w SlowdownsAdding Web Components to our optimal Vanilla JS has actually made it more expensive than the equivalent Solid example Inferno has now closed the gap considerably with Vanilla JS And Svelte and Lit have continue to drop a few more points On the slower system Svelte is really getting hurt at this point by it s memory usage on benchmarks like clear rows Intel w Slowdown ConclusionsI feel like a broken record but really we shouldn t be comparing Web Components to JavaScript Framework components They serve a different purpose and performance is not a place that they can win There is nothing wrong with that once you understand they aren t the same thing If anything this test was setup in Web Components favor There is no Shadow DOM or extra elements inserted Those things you would find in real world would make them even heavier solution I didn t want any contention so I kept in things like explicit event delegation which only benefits Lit in this test This is really the most optimistic look at Web Components It might not always be this way to be sure Web Component performance has improved in the years since I last tested But it isn t as simple as saying use the platform As it turns out all JavaScript frameworks use the platform just some more efficiently than others It s a delicate balance between platform for standards sake and using it only so far as it is empirically beneficial There are way more factors than performance here But it is pretty clear that frameworks that scale with well with more components such as Virtual DOM libraries like React or Inferno or component less libraries like Solid don t experience as much overhead This doesn t come as much as revelation to me this time around But maybe by looking at a few numbers we can better extrapolate where we should cautious This is just a brutal microbenchmark that only really shows us the framework level bottlenecks and the real ones happen usually in our user code But for those looking to evaluate on pure technological approach maybe there is some value here Results in a single table Intel w Slowdowns	2021-06-25 16:21:18
海外TECH	DEV Community	The best way to use SVG icons in React.	https://dev.to/sgolovine/the-best-way-to-use-svg-icons-in-react-3ckm	The best way to use SVG icons in React When I first started working with React I used libraries like React Icons or Bootstrap Icons to manage my icons But problems quickly emerged the first problem is not all of these packages support tree shaking Without tree shaking when you build your site all the icons from the library will be included with your build rather than just the ones you use The second problem is these libraries can be hard to setup and manage So what s a better way Let me show you If you re new to React you might not know this but in fact you can use svg icons directly as React components So how would we do that Creating a ComponentTake this SVG icon via Hero Icons This SVG icon has the following code lt svg xmlns class h w fill none viewBox stroke currentColor gt lt path d M l z gt lt path d M l a A a L z gt lt path stroke linecap round stroke linejoin round stroke width d M l zm l a A a L zm v l gt lt svg gt The first thing you will want to do is remove the xmlns attribute as it s not used by React when rendering the SVG Additionally you need to replace the class attribute with className to make it compliant with React Your SVG will now look like this lt svg className h w fill none viewBox stroke currentColor gt lt path d M l z gt lt path d M l a A a L z gt lt path stroke linecap round stroke linejoin round stroke width d M l zm l a A a L zm v l gt lt svg gt Now you re ready to create a React component I suggest creating a functional component import React from react export const AcademicIcon gt return lt svg class h w fill none viewBox stroke currentColor gt lt path d M l z gt lt path d M l a A a L z gt lt path stroke linecap round stroke linejoin round stroke width d M l zm l a A a L zm v l gt lt svg gt At this point you re ready to use the component You can use it as is in other react components like so import React from react import AcademicIcon from AcademicIcon js export const App gt return lt div gt lt AcademicIcon gt lt div gt Adding PropsOne benefit of using SVG s as React components is you can add props to it just like you would to any other component Lets add some props to our AcademicIcon component to make it more flexible import React from react export const AcademicIcon className h w fill none stroke currentColor stokeWidth gt return lt svg className className fill fill viewBox stroke stroke gt lt path d M l z gt lt path d M l a A a L z gt lt path stroke linecap round stroke linejoin round stroke width strokeWidth d M l zm l a A a L zm v l gt lt svg gt Now in this final version we moved className fill stroke and strokeWidth to a prop and gave it a default of the original value Now you can call your icon with props import React from react import AcademicIcon from AcademicIcon js export const App gt return lt div gt lt AcademicIcon className h w fill red strokeWidth gt lt div gt Because all the props have defaults you can declare the icon with all the props some of them or none of them With this method you are also only loading the icons you are using no wasteful extra code at build time If you enjoyed this post check out my other posts on my blog You should also check out my latest project Awesome Devtools	2021-06-25 16:03:51
Apple	AppleInsider - Frontpage News	The best new features and changes in iOS 15 beta 2 & iPadOS 15 beta 2	https://appleinsider.com/articles/21/06/25/the-best-new-features-and-changes-in-ios-15-beta-2-ipados-15-beta-2?utm_medium=rss	The best new features and changes in iOS beta amp iPadOS beta The second beta of iOS enables SharePlay and provides a few UI tweaks across system apps Here are all the changes in the second developer beta Developer beta of iOS With a testing period of just over two weeks many changes were incorporated ーboth big and small Read more	2021-06-25 16:39:43
海外TECH	Engadget	Microsoft’s fast game-loading tech won’t come to Windows 10	https://www.engadget.com/directstorage-windows-11-exclusive-164803425.html?src=rss_b2c	windows	2021-06-25 16:48:03
海外TECH	CodeProject Latest Articles	Seamless Streaming Analytics with Azure Synapse Analytics Part 2: Creating Dedicated SQL Pools	https://www.codeproject.com/Articles/5306324/Seamless-Streaming-Analytics-with-Azure-Synapse-An	Seamless Streaming Analytics with Azure Synapse Analytics Part Creating Dedicated SQL PoolsIn this article we discuss how we can use Azure Synapse Analytics for a full fledged streaming analytics solution	2021-06-25 17:00:00
海外科学	NYT > Science	Discovery of ‘Dragon Man’ Skull in China May Add Species to Human Family Tree	https://www.nytimes.com/2021/06/25/science/dragon-man-skull-china.html	Discovery of Dragon Man Skull in China May Add Species to Human Family TreeA laborer discovered the fossil and hid it in a well for years Scientists say it could help sort out the human family tree and how our species emerged	2021-06-25 16:16:06
海外科学	NYT > Science	These Fonts Are Puzzles. Can You Solve Them?	https://www.nytimes.com/2021/06/25/science/puzzles-fonts-math-demaine.html	entire	2021-06-25 16:37:10
海外科学	NYT > Science	Wildfires Threaten Urban Water Supplies, Long After the Flames Are Out	https://www.nytimes.com/2021/06/24/climate/wildfire-water-quality.html	water	2021-06-25 16:02:12
海外科学	BBC News - Science & Environment	Scientists hail stunning 'Dragon Man' discovery	https://www.bbc.co.uk/news/science-environment-57432104	species	2021-06-25 16:24:28
金融	金融庁ホームページ	Binance Holdings Limitedに対する警告書の発出について公表しました。	https://www.fsa.go.jp/policy/virtual_currency02/Binance2_keikokushilyo.pdf	binanceholdingslimited	2021-06-25 17:00:00
ニュース	BBC News - Home	Matt Hancock affair: Health secretary apologises for breaking social distancing guidelines	https://www.bbc.co.uk/news/uk-politics-57612441	health	2021-06-25 16:03:17
ニュース	BBC News - Home	Colin Pitchfork: Government to ask for review of child killer's release	https://www.bbc.co.uk/news/uk-england-leicestershire-57429092	colin	2021-06-25 16:42:52
ニュース	BBC News - Home	Covid-19: Hancock admits breaching guidelines, and travel bookings surge	https://www.bbc.co.uk/news/uk-57611971	coronavirus	2021-06-25 16:19:51
ニュース	BBC News - Home	Scientists hail stunning 'Dragon Man' discovery	https://www.bbc.co.uk/news/science-environment-57432104	species	2021-06-25 16:24:28
ニュース	BBC News - Home	Bishop's 'heartfelt' apology over Catholic college abuse	https://www.bbc.co.uk/news/uk-england-leeds-57583880	yorkshire	2021-06-25 16:29:36
ニュース	BBC News - Home	Nine-year-old Flora Rider scoops world marmalade title	https://www.bbc.co.uk/news/uk-england-hampshire-57581729	marmalade	2021-06-25 16:05:28
ニュース	BBC News - Home	Verstappen tops second Styrian GP practice as Bottas spins in pit lane	https://www.bbc.co.uk/sport/formula1/57615056	Verstappen tops second Styrian GP practice as Bottas spins in pit laneMercedes driver Valtteri Bottas is handed a three place grid penalty at the Styrian Grand Prix for spinning in the pit lane in practice	2021-06-25 16:51:13
ニュース	BBC News - Home	Covid-19 in the UK: How many coronavirus cases are there in my area?	https://www.bbc.co.uk/news/uk-51768274	cases	2021-06-25 16:22:41
ニュース	BBC News - Home	Covid vaccine: How many people in the UK have been vaccinated so far?	https://www.bbc.co.uk/news/health-55274833	covid	2021-06-25 16:10:03
北海道	北海道新聞	「対話の場」会則案了承　寿都で２回目会合　委員７人が欠席	https://www.hokkaido-np.co.jp/article/559962/	高レベル放射性廃棄物	2021-06-26 01:07:57