投稿時間:2022-12-10 18:15:33 RSSフィード2022-12-10 18:00 分まとめ(16件)

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python	Pythonタグが付けられた新着投稿 - Qiita	Unknown encoder 'pcm_s4le'	https://qiita.com/sheercat/items/2660287a67e37db5466e	encoder	2022-12-10 17:58:23
python	Pythonタグが付けられた新着投稿 - Qiita	【Python】勉強メモ(listについて）-その1	https://qiita.com/qiitataro/items/2d35722b00bfaf344220	output	2022-12-10 17:06:36
js	JavaScriptタグが付けられた新着投稿 - Qiita	まずはお試し	https://qiita.com/KENJI_IT1210/items/449fe02906ab3d61fb52	github	2022-12-10 17:06:39
Ruby	Rubyタグが付けられた新着投稿 - Qiita	`#coerce` を refinements で追加してもうまく使われない	https://qiita.com/HMMNRST/items/8368c51dbd0e4ccf7db6	refinements	2022-12-10 17:26:40
AWS	AWSタグが付けられた新着投稿 - Qiita	Amazon Cognitoを検討してみた	https://qiita.com/GpAraki/items/98209c7f493716c50f37	amazoncognito	2022-12-10 17:07:15
AWS	AWSタグが付けられた新着投稿 - Qiita	AWSが公開したFinchを使ってみた	https://qiita.com/nao_70/items/be8ede1eba789892cd0f	docker	2022-12-10 17:03:53
Docker	dockerタグが付けられた新着投稿 - Qiita	DockerでOverlayFSを確認する	https://qiita.com/ymktmk/items/6fb266ecb514a694af0f	httpsq	2022-12-10 17:10:52
Docker	dockerタグが付けられた新着投稿 - Qiita	AWSが公開したFinchを使ってみた	https://qiita.com/nao_70/items/be8ede1eba789892cd0f	docker	2022-12-10 17:03:53
golang	Goタグが付けられた新着投稿 - Qiita	C言語のprintfにGoの%v相当のものが実装できないか実験してみた	https://qiita.com/fujitanozomu/items/0bc068ce1bd912449f58	printf	2022-12-10 17:23:10
技術ブログ	Developers.IO	[レポート]Amazon Redshift: 10 years of innovation in integration, data sharing & more #ANT345 #reinvent	https://dev.classmethod.jp/articles/reinvent2022-report-ant345/	mazonredshiftyearsofinnov	2022-12-10 08:57:10
海外TECH	DEV Community	WHY YOUR STATE IS ONE CHARACTER BEHIND.(react.js)	https://dev.to/csituma/why-your-state-is-one-character-behindreactjs-16im	WHY YOUR STATE IS ONE CHARACTER BEHIND react js So here is our Scenario This is a small application that takes in userInput and creates a search query for it on google On enter or on clicking Search button the user is re directed to google to find the results of their query Here is the component responsible for that import useState from react function Search searchQuery initialisedconst userQuery setUserQuery useState open searchQuery on new google com windowconst searchQuery gt window open userQuery blank search on Enter keyconst handleKeyPress e gt if e key Enter searchQuery const updateUserQuery e gt setUserQuery e target value console log userQueryInsideCBFunction userQuery return lt div className Search bar gt lt h gt Search the Web lt h gt lt div className form gt lt input value userQuery onChange updateUserQuery onKeyPress handleKeyPress gt lt button onClick searchQuery gt search lt button gt lt div gt lt div gt export default SearchNOW HERE IS OUR PROBLEM Oh oh Our console log inside the updateUserQuery function appears to log ONE CHARACTER BEHIND However our State is updated correctly as per the input values and we can confirm this by adding a console log for the state variable const updateUserQuery e gt setUserQuery e target value console log userQueryInsideCBFunction userQuery add this to confirm state is indeed updatedconsole log userQueryOutsideCBFunction userQuery return export default SearchWe can see that userQueryOutsideCBFunction is up to date SO WHAT S HAPPENING AND HOW DO WE FIX THIS Our State update is dependent on the result of an asynchronous operation which in our case is The setUserQuery e target value inside the updateUserQuery functionThe updateUserQuery function is called every time the input field is updated but the userQuery state is not updated until after the function has finished executing This means that the userQuery state will be one character behind the current input value because the input value is updated before the userQuery state is updated In this case the reason the state is behind the input value is because the updateUserQuery function is called synchronously in response to the onChange event but the setUserQuery function is called asynchronously after the function has finished executing This means that the state update is deferred until after the function has completed causing the state to be temporarily out of sync with the input value There are various ways to address this issue depending on your specific requirements and the context in which it occurs For example you could try using the setState callback to update the state synchronously or use the useReducer hook instead of useState to manage state updates more explicitly Layman s explanationLET S USE HI AS OUR EXAMPLE INPUT FIELD The console of userQuery inside the updateUserQuery function will be you guessed it h instead of hi Why The State is NOT updated until the updateUserQuery function is finished so that means console logging userQuery in the function at first will log an empty string which is the default state variable in our case So this is our FIRST STATESO THIS IS WHAT IS HAPPENING INSIDE THAT FUNCTION So at first our console will print empty initial value and the e target value at this point is at h Then when the user types again the e target value now adds the i and gets to hi At this stage our state will only be at h Quick fix To log the new input value instead of the current userQuery state you could update the console log statement to use the e target value property instead of userQuery This property contains the current value of the input field which should match the new input value exactly Here is an example of how you could update the console log statement to log the new input value const updateUserQuery e gt console log userQuery e target value setUserQuery e target value With this change the console log statement will log the new input value each time the input field is updated rather than logging the current userQuery state	2022-12-10 08:49:44
海外TECH	DEV Community	Bluetooth LE cihazlarla çalışma	https://dev.to/aliorhun/bluetooth-le-cihazlarla-calisma-3jb1	Bluetooth LE cihazlarla çalışmaDüşük enerjili Bluetooth Bluetooth Low Energy düşük güce sahip sensör ve çeşitli cihazlar için tasarlanmış klasik Bluetooth a göre çok daha düşük güçlüBluetooth imkanıveren yapıdır Özellikle sürekli bağlantıgerektirmeyen fakat uzun pil ömrüne sahip olmasıistenen uygulamalar için kullanılmaktadır Sisteminizdeki Bluetooth alıcısınıöğrenmeÖncelikle sisteminizde bir Bluetooth alıcısıolmasıgerekiyor Tabi ki bu alıcılarıçok fazla görmüşolabilirsiniz Bu alıcılar USB olarak takılabildiği gibi sisteminizin içerisinde entegre olarak da bulunuyor olabilir Öncelikle sistemimizde bluetooth cihazıolup olmadığınıanlayabilmek için kullanacağımız komut hcitool ile sisteminize takılıolan bluetooth cihazlarınılisteleyebilirsiniz hcitool devBu komut yazıldıktan sonra aşağıdaki gibi bir çıktıbeklenmektedir Devices hci A D BA B Burada MAC adresi gözüken cihaz kendi Bluetooth alıcınızdır Eğer cihaz göremiyorsanız alıcıyıkapatıp açmak veya çıkartıp takmayıdeneyebilirsiniz Düşük enerjili Bluetooth cihazlarınıtaramaAynıkomut ile sistemde aktif olarak yayın yapan Bluetooth cihazlarınıtarayabilirsiniz Tarama işlemi için aşağıdaki gibi komut çalıştırılmalıdır Bu tarama işlemi CTRL C ile kapatmadıkça taramaya devam edecektir sudo hcitool lescanBu komut sonrasında aşağıdaki gibi akan şekilde Bluetooth cihazlarının MAC adresleri ve tespit edilebiliyorsa isimleri görüntülenmektedir LE Scan CB D unknown CB D Amazfit NeoA unknown A LYWSDMMC A unknown A LYWSDMMCBu adımla birlikte düşük enerjili Bluetooth cihazının MAC adresini tespit etmişoluyorsunuz ve erişim için kullanılabilir hale gelmektedir Cihaz ile ilk temasDüşük enerjili Bluetooth cihazlara erişebilmek için farklıbir araçolan gantttool kullanılmaktadır Bu uygulama örneğin Ubuntu üzerinde bluez isimli paket ile gelmektedir Dolayısıyla öncelikle ilgili paketi yüklemeniz gerekir sudo apt install bluezÖnceki başlıkta öğrendiğimiz Bluetooth cihazının MAC adresini bu araca vererek öncelikli olarak interaktif bir oturum açılmasımantıklıolacaktır sudo gatttool b CB A D BA B D IBu şekilde ekranda aşağıdaki gibi bir kabuk açıldığınıgöreceksiniz CB A D BA B D LE gt Bu kabuk üzerinde ilk olarak connect komutu ile bağlantısağlanmasıgerekiyor ve connection successful cevabıalınmasıgerekiyor Bu alınmıyorsa gerçekten bağlantısağlandığıanlamıkesinlikle taşımamaktadır CB A D BA B D LE gt connectAttempting to connect to CB A D BA B DConnection successful CB A D BA B D LE gt Bu adım gerçekleştiğinde cihaz ile erişime açık bir kabuğa eriştiğinizi söyleyebiliriz Temel bilgilere erişimCihaza interaktif mod ile bağlantıkurduktan sonra özellikle aşağıdaki komut ile birlikte servisler handlerlar ve karakteristikler görüntülenebiliyor İlk olarak primary komutu uygulanarak aşağıdaki gibi UUID lere sahip servisleri gözlemleyebilirsiniz CB A D BA B D LE gt primaryattr handle x end grp handle x uuid fbfbattr handle x end grp handle xb uuid fbfbattr handle xc end grp handle xf uuid efde feabcdAyrıca char desc komutu ile kullanılabilir karakter handlerlarına erişebilirsiniz CB A D BA B D LE gt char deschandle x uuid fbfbhandle x uuid fbfbhandle x uuid a fbfbhandle x uuid fbfbhandle x uuid fbfbhandle x uuid fbfbhandle x uuid a fbfbhandle x uuid fbfbhandle x uuid a fbfbhandle xa uuid fbfbhandle xb uuid a fbfbhandle xc uuid fbfbhandle xd uuid fbfbhandle xe uuid efde feabcdhandle xf uuid fbfbVe son olarak da characteristics komutu ile karakteristik değerleri görebilirsiniz CB A D BA B D LE gt characteristicshandle x char properties x char value handle x uuid a fbfbhandle x char properties xe char value handle x uuid a fbfbhandle x char properties xe char value handle x uuid a fbfbhandle xa char properties x char value handle xb uuid a fbfbhandle xd char properties xe char value handle xe uuid efde feabcdBir karakteristiği okuma yapmak için o karakteristiğin handler ınıkullanarak okuma sağlanabilmektedir CB A D BA B D LE gt char read hnd xCharacteristic value descriptor Ve tabi cihazın dokümantasyonlarıincelerenek aşağıdaki gibi yazma işlemleri de yapılabilmektedir Bu sayede örneğin LEGO HUB üzerinden motor çalıştırabilme hızıayarlayabilme gibi şeyler yapılabilmektedir CB A D BA B D LE gt char write req xf Characteristic value was written successfullyNotification handle xe value f Notification handle xe value f Notification handle xe value f b Notification handle xe value f c İnteraktif mode tan çıkışiçin exit komutu uygulanmasıyeterlidir Komut üzerinden interaktif mod kullanmadan erişimYukarıda anlatılan fonksiyonların bir benzeri interaktif olarak açılmadan CLI üzerinden çalıştırılabilmesi de sağlanabilmektedir gatttool b CB A D BA B D char write req handle xe value afgatttool b CB A D BA B D char read hnd handle xe	2022-12-10 08:37:40
海外TECH	DEV Community	✨Day in the life of a college student during finals week - self reflection blog	https://dev.to/saminarp/day-in-the-life-of-a-college-student-during-finals-week-self-reflection-blog-45md	Day in the life of a college student during finals week self reflection blogDear college students I am sure we all can relate to this Finals week is here and everything is about to go to bleepWhy are all the assignments due on the same day I sleep and wake up at unusual times Maybe I can implement a few more features before sleep for my cloud computing assignment Maybe just one more cup of coffee will keep me awake for a few more hours Well no the extra cup of coffee just made me jittery and now I am left with a racing heart There is no sleeping schedule anymore There are just random hours of sleep in a hour period Upon waking up I check my email and Slack and Teams messages My messages are somewhat like this CI CD failed from the flutter pull request I had done Great Your assignment is due tonight Awesome Your promo code that is set to expire in hours for Ugg boots I panic Because the decision is tough I have just hours to decide that if I fit in another pair of Ugg boots in my meticulously planned Christmas shopping list already containing items will I suffer financially Back to reality I panic I realize I have no time for Christmas shopping It needs to happen after the finals Well will the stuff I like be out of stock before the finals I think of this and I stress even more The Uber Eats bill is piling up fast My bank app is displaying a warning message stating there might be a possibility of duplicate charges from the same merchant No mistakes there It s all me I pour my Starbucks coffee beans into my french press The first sip of the morning coffee feels like an elixir I eat my daily dose of morning eggs and protein wraps and promptly sit to study hours later I finally debugged the flutter issue I was working on Debugged It all looks good All the checks pass now I take a small break stretch out my legs and eat a meal I catch a glimpse of myself in the mirror and I notice new stress pimples Time to study again 🥹 Another hours later I think to myself wow that was a productive hours At this point though I feel my cognitive functions declining Maybe I should nap or maybe I should get more coffee I look at my TODO list and I get a momentary sense of deep satisfaction every time I mark something as done but then I realize I have a lot more in blues and pinks than greens This is what a typical day for me looks like leading up to finals But this is neither healthy nor sustainable So don t be like me during finals week This semester I took five difficult courses but I am glad this is my last semester In my previous blog I set myself some really big goals for December So far I am really satisfied with how much I have accomplished I also realize that if I focus Really focus on my work without distraction for hours I can get so much done What s going good The open source contributions are going well I was able to successfully make pull requests to flutter and to my photohub I am currently working on responding to the issues I worked on I have also been keeping up with the advent of cyber but fell behind on the advent of code But not to worry I am going to catch up right after the finals I have also responded to some changes requested for a pull request I did last month for fig autocomplete and had it successfully merged yesterday Most of my assignments are complete Thanks to careful planning Uber Eats and the Thai food store mins away from me What s not going good 🥲 I am behind on code reviews and I realize I should put more effort into it I missed out on writing two blogs for my static site generator I had no time to workout for the last two weeks Thank you all for reading Next blog will be filled with technical details about my pull requests made for flutter and my photohub	2022-12-10 08:01:48
海外TECH	DEV Community	Custom checkbox and radio buttons in CSS	https://dev.to/shubhamtiwari909/custom-checkbox-and-radio-buttons-in-css-2n38	Custom checkbox and radio buttons in CSSHello Guys today i will be discussing about how to create a custom checkbox or radio button with css I got this design from kevinpowell and thanks to him that i know many new things in CSS today Let s get started So To create a custom checkbox or radio button all you have to do is apply the appearance none property to the checkbox or radio buttona and then style the checkbox or radio button by providing it the custom width and height and other stylings related to colors borders backgrounds Example of custom radio button lt input type radio name theme checked gt input type radio appearance none width rem height rem outline px solid crimson outline offset px border radius It will create a custom radio button with some custom stylingsYou can do the same for the checkbox also by using type checkbox and then setting the type in css selector as checkbox Targeting the checked state input type radio checked background red When you click the radio button its background color will become red You can also provide other stylings to the checked state Codepen ExampleYou would love this one for sure THANK YOU FOR CHECKING THIS POSTYou can contact me on Instagram LinkedIn Email shubhmtiwri gmail com You can help me by some donation at the link below Thank you gt lt Also check these posts as well	2022-12-10 08:01:05
ニュース	BBC News - Home	UK weather: Snow and ice warnings continue for this weekend	https://www.bbc.co.uk/news/uk-63926328?at_medium=RSS&at_campaign=KARANGA	warnings	2022-12-10 08:13:39
ニュース	BBC News - Home	World Cup 2022: US sports journalist Grant Wahl dies in Qatar	https://www.bbc.co.uk/news/world-us-canada-63927054?at_medium=RSS&at_campaign=KARANGA	argentina	2022-12-10 08:28:47