投稿時間:2021-08-09 02:21:18 RSSフィード2021-08-09 02:00 分まとめ(23件)

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python	Pythonタグが付けられた新着投稿 - Qiita	PythonのDjangoで最初のWebページ作り	https://qiita.com/9ever/items/bbb0bdc3c1be73f33a97	migrateをしたので、dbsqliteが作成されていますので、見てみます。	2021-08-09 01:37:39
python	Pythonタグが付けられた新着投稿 - Qiita	Djangoによる非同期処理実装 in Ubuntu(Cerery,Redis)	https://qiita.com/shiranon/items/a639e44621dba3b8a294	task・画面の作成次にceleryで実行したいタスクを作成します。	2021-08-09 01:12:39
python	Pythonタグが付けられた新着投稿 - Qiita	Streamlit で超二次関数の 3D モデルを可視化する	https://qiita.com/ken2s/items/72c265ee9a4a15aee948	パラメータが変わればどんな形状になるのか確認したくなり、Webアプリを作成したので紹介します。	2021-08-09 01:05:07
js	JavaScriptタグが付けられた新着投稿 - Qiita	仕様変更に負けないでWeb版のTinderで自動スワイプする	https://qiita.com/tinder-man/items/51dff6f081603ad5ddbc		2021-08-09 01:41:21
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	JavaScriptとPython間での値の受け渡しについて	https://teratail.com/questions/353394?rss=all	JavaScriptとPython間での値の受け渡しについてjavascritで取得した変数をpython側に渡し、処理したのち、javascript側に返す方法を探しています。	2021-08-09 01:59:35
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	CodePenで特定の動作の時のみ背景色を変えるには	https://teratail.com/questions/353393?rss=all	CodePenで特定の動作の時のみ背景色を変えるにはCodePenで作ったWebアプリで特定の動作の時のみ背景色を変更したいCodePenを使ってWebアプリを作成しています。	2021-08-09 01:51:47
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	StyleGAN2 ADAによる学習	https://teratail.com/questions/353392?rss=all	StyleGANADAによる学習前提・実現したいこと下記を利用して、私が用意した画像を元に学習を行いました。	2021-08-09 01:49:31
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	Android Studioでunresolved referenceになります。	https://teratail.com/questions/353391?rss=all	AndroidStudio で unresolvedreference に なり ます 。	2021-08-09 01:40:18
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	propsにfindで見つけたユーザの情報を渡したい	https://teratail.com/questions/353390?rss=all	propsにfindで見つけたユーザの情報を渡したいやりたいことArticleコンポーネントのpropsのuserに、findUserで見つかったuserの情報を渡したいです。	2021-08-09 01:33:25
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	VBでcsvファイルから読み込んだデータをTextBoxに反映させたい	https://teratail.com/questions/353389?rss=all	VBでcsvファイルから読み込んだデータをTextBoxに反映させたい前提・実現したいこと使用言語はVB使用ツールはVisualnbspStudionbspCommunitynbspです。	2021-08-09 01:29:41
海外TECH	DEV Community	My favourite Kotlin features	https://dev.to/lukegarrigan/my-favourite-kotlin-features-2ma3	My favourite Kotlin featuresLast Saturday I sat down with a strong cup of coffee and got stuck into some Kotlin I thoroughly enjoyed the process and likewise thoroughly enjoyed the language Its simplicity elegance and to the pointedness make me envy those lucky devs that use it day to day Engineers whose job is to create tools for popular programming languages ーand the best ones at that ーwould certainly know a thing or two about each language s strengths and weaknesses It was the perfect recipe and the oven was set at the perfect temperature Coincedentally ーand to my astonishment ーKotlin is celebrating its th anniversary I still consider it the new kid on the block even if apps are using it with upwards of downloads My knowledge of the language is embryonic to say the least I ve roughly spent a total of hours coding in Kotlin that s around hours solving Katas on Codewars and around hours creating very simple Android applications ーdetails of which I ll go into in my next blog So I am by no means an expert Yet I ve still managed to compile things that I love about the language Clean syntaxThe language is clean And by clean I mean not verbose As a Java turned C developer I can acknowledge that sometimes the code I write is verbose Verbosity however is sometimes needed for code clarity Kotlin has managed to reduce verbosity whilst keeping clarity and ーsomehow ーmanaged to improve code readability In my opinion Here s a few examples of how they ve achieved it Final made simpleIn Java to create a final variable ーthat is a variable that can only be initialised once ーyou d have the following final int AGE Whereas in Kotlin you have two different keywords to declare variables val and var val age val being the final equivalent Much like TypeScript s const Also you may have noticed that semi colons are not required Oh and there are inferred types which there are too in Java and C now but it s worth pointing out No new keywordThis one caught me off guard There I was trying to create my first object in Kotlin val person new Person unresolved reference newThe new keyword is so embedded in my hippocampus for object oriented programming that I thought I d made some syntactical error which of course I had Let s have some funKotlin is fun but to define a function all you need is fun fun doSomething doing something Such a trivial thing but having a vital keyword only being characters allows you to focus on what s important Not so nullable typesNull references ーknown as the billion dollar mistake ーhave plagued developers for half a century I can t imagine a single developer who has not been stung by this hornet We ve all attempted to access a member of a null object at some point NullPointerException or NullReferenceException or Cannot read property of null I m sure one of these inflicts PTSD in some of you In Kotlin references are not nullable by default You have to explicitly make them nullable var name String Luke a null compilation errorIf you want string to be nullable you d have to use the nullable syntax var name String Luke a null all goodSo what happens if you want to access a property of name in this scenario It d just throw a null reference exception wouldn t it Nope var name String Luke name null var nameLength name length Only safe or non null asserted calls are allowed on a nullable receiver of type String Instead you get a compile time error explaining what you need to do to access the member brilliant Extension functionsOkay this one may be a bit of a cop out as I am predominantly a C developer and have on numerous occasions expressed my love for extension methods Having the ability to write new functions for third party code whose source is not easily editable is a game changer fun main var x print x half fun Double half Double return this I also prefer the implementation of extension functions in Kotlin to other languages there s less syntactic sugar which is always a plus from me Convert to KotlinOne of the best parts of Kotlin is its interoperability with Java making it easy for Java devs to make the transition JetBrains IDEs allow you to directly convert Java code to Kotlin by the click of a button amazing This is not so much a feature of the language but rather a feature of the tooling I don t believe there s any tooling to convert Kotlin code to Java but why would you Well I m sure somebody somewhere has this requirement but for me I d stick to Kotlin ConclusionKotlin has met me well Many decisions have been made with careful consideration from a team of talented individuals oozing knowledge in programming languages As mentioned earlier I m new to the language but I like what I m seeing And I intend to see more of it I m currently coding an android app to calculate running paces which will be written about in my next blog if you re interested Thank you for reading this blog I hope you ve enjoyed it Please signup to my newsletter if you did	2021-08-08 16:52:49
海外TECH	DEV Community	Web Developer Complete Roadmap	https://dev.to/hahauga/web-developer-complete-roadmap-4pi7	Web Developer Complete Roadmap There has never been a better time to learn to code or make a career change to software engineering The demand for web developers is at an all time high and it s only increasing There are both free and premium tutorials online that teach you the skills to get a job as a developer ーno CS degree required This article details the needed skills and the corresponding tutorials to learn them effectively The illustrated guide is provided by Codelivly and can be found on codelivly  ーCodelivly work is excellent so be sure to star the repo and subscribe to his newsletter to support his efforts Don t be intimidated by the map It may seem like a lot but I ll break it down so you can learn each part step by step This article will be divided into the following sections Full Stack Web Development Frontend Web Development Backend Web Development Best Python Framework For Web Development	2021-08-08 16:51:46
海外TECH	DEV Community	10 Magical JavaScript Tips for Every Web Developer	https://dev.to/hahauga/10-magical-javascript-tips-for-every-web-developer-24na	Magical JavaScript Tips for Every Web DeveloperIn this article we will discuss the useful JavaScript tips for every web developer to save their valuable and precious time I am always ready to learn although I do not always like being taughtーWinston ChurchillTip Flatten the array of the arrayThis tip will help you to flatten a deeply nested array of arrays by using Infinity in flat var array flatten array of arrayarray flat Infinity output Tip Easy Exchange VariablesYou probably swap the two variables using a third variable temp But this tip will show you a new way to exchange variables using destructuring example var a var b a b b a console log a b Read More Magical JavaScript Tips for Every Web Developer	2021-08-08 16:40:59
海外TECH	DEV Community	Top 20 JavaScript tips and tricks to increase your Speed and Efficiency	https://dev.to/hahauga/top-20-javascript-tips-and-tricks-to-increase-your-speed-and-efficiency-3bh3	Top JavaScript tips and tricks to increase your Speed and EfficiencyConvenient and useful techniques to reduce the lines of code and pace up your Dev Work In our daily tasks we get to write functions such as sorting searching finding unique values passing parameters swapping values etc so here I present my list of shorthand techniques to write all of them as a Pro JavaScript is truly an awesome languageto learn and work with And there can be more than one approach to reach to the same solution for given problem In this article we will discuss only the quickest ones These approaches will definitely help you in Reducing the number of LOC lines of code Coding Competitions Hackathons orOther time bound tasks Most of these JavaScript Hacks uses techniques from ECMAScript ES onwards though the latest version is ECMAScript ES Note All below tricks have been tested on the Console of Google Chrome Read More Top JavaScript tips and tricks to increase your Speed and Efficiency	2021-08-08 16:36:58
海外TECH	DEV Community	10 VS Code extensions every Frontend Developer should use	https://dev.to/hahauga/10-vs-code-extensions-every-frontend-developer-should-use-jie	VS Code extensions every Frontend Developer should use Hello everyone my name is suman and I m a frontend developer In this blog post I would like to share VS code extensions that every frontend developer should use The purpose of using these extensions is to write faster cleaner and more consistent code  Let s Jump in Read More VS Code extensions every Frontend Developer should use	2021-08-08 16:34:37
海外TECH	DEV Community	Why Every Software Engineer Should Learn Computer Architecture	https://dev.to/hahauga/why-every-software-engineer-should-learn-computer-architecture-1b16	Why Every Software Engineer Should Learn Computer Architecture IntroductionI believe that success greatly correlates to two things how you see the world and how much you truly understand it We can say the same about software engineering where computer architecture is the very essence of software engineering if you understand it well enough software engineering will be a piece of cake What is Computer Architecture According to Wikipedia Computer architecture is a set of rules and methods that describe the functionality organization and implementation of computer systems Some definitions of architecture define it as describing the capabilities and programming model of a computer but not a particular implementation In a nutshell CA is basically the set of rules that control how hardware and software interact together Why Study Computer Architecture Computer Architecture can help you more than you think For example most F drivers know a lot about their car s engine to the point they can determine any problem with their engine even before their engineers can They also know about Physics and Aerodynamics hence this helps them give precise instructions to their mechanics in the Pitstop like adjusting the nose or the wheels leading them to win more races Well what does all this have to do with CA It s the same concept When you understand and know more about the cornerstone of Software Engineering you know how to handle problems and achieve what you need more efficiently Why you should learn Computer Architecture You will likely use it for the rest of your life Computer Architecture is one of the most fundamental subjects in Computer Science As without computers the field of Computer Science would not exist You need to understand how the instructions and operations actually work and interact together to make your software better because whatever you do no matter what it is on top of CA Computer Architecture will help you design develop and implement applications that are better faster cheaper more efficient and easier to use because you will be able to make informed decisions instead of guessing estimating and assuming Example On How Computer Architecture Can Affect The Way You Code Branch Prediction Let s say you are on a train your job is to observe the way and you are at a railway junction You have to choose a side and you don t know which side to go on so you either choose the right path or the wrong path if you do choose the right path you will keep going if you choose the wrong path however you will go back and choose the other path So if you keep choosing the right path you won t have to go back again and if you choose the wrong path you will keep having to go back and forth makes sense Consider an if statement At the processor level it is a branch instruction Now you are a processor and you see a branch you have no idea which path to go so you will have to enter If you guess right the execution will never have to stop If you guess wrong you spend more time going back and restarting the execution So how do we make the better choice each time We observe If the process usually takes left then we guess left If it takes right most of the time we guess right If it alternates then we alternate our choice as wellThis is more or less how Branch Prediction works ConclusionLearn Computer Architecture become a better software engineer	2021-08-08 16:27:09
Apple	AppleInsider - Frontpage News	Apple engineers lack optimism about the Apple TV strategy, claims report	https://appleinsider.com/articles/21/08/08/apple-engineers-lack-optimism-on-apple-tv-strategy?utm_medium=rss	Apple engineers lack optimism about the Apple TV strategy claims reportApple seemingly doesn t have any major plans to shake up its living room strategy with the Apple TV in the near future a report claims with engineers allegedly pessimistic about the product line In the last year Apple has made many major changes to its product lines though it s arguable that its work concerning the living room is relatively lacking The main change to the Apple TV was to update the Siri Remote to a more user friendly version while the full size HomePod was discontinued While the changes may prompt a pessimistic view on the future of the products by observers it seems that there s little confidence in the company internally as well In the latest Power On newsletter for Bloomberg Mark Gurman s conversations with Apple engineers indicates there s little to be excited about Apple s living room strategy for the coming year at least Read more	2021-08-08 16:40:51
海外TECH	Engadget	Microsoft starts publicly testing an Xbox night mode	https://www.engadget.com/xbox-night-mode-alpha-test-160536162.html?src=rss	Microsoft starts publicly testing an Xbox night modeDon t worry if you re determined to play an Xbox game into the wee hours of the morning ーthose late night sessions will soon be easier on your eyes The Vergenotes that Microsoft has started publicly testing an Xbox night mode that should make it more comfortable to play after dark The feature can dim the screen power button and even your controller light An optional blue light filter theoretically helps reduce eye strain and you can disable HDR to avoid searingly bright images You can manually toggle the feature if you d like but you can also schedule it either at fixed times or automatically based on sunset and if you ve been gaming long enough sunrise The Xbox night mode is currently limited to testers in the very early Alpha Skip Ahead ring The perk will take a while to reach a polished release Still it s likely to be appreciated It s easy to find night modes on your PC and your phone but you haven t really had that luxury on consoles If all goes well you ll have a more consistent nighttime experience regardless of which screen you re using	2021-08-08 16:05:36
ニュース	BBC News - Home	Covid-19: Quarantine-free travel from France resumes as UK rules change	https://www.bbc.co.uk/news/uk-58130944	changesome	2021-08-08 16:32:59
ニュース	BBC News - Home	Greece wildfires: Hundreds more evacuated as uncontrolled fires rage	https://www.bbc.co.uk/news/world-europe-58138614	fires	2021-08-08 16:10:23
ニュース	BBC News - Home	Bukayo Saka: Arsenal forward clapped on to pitch by Tottenham fans in pre-season friendly	https://www.bbc.co.uk/sport/football/58138453	arsenal	2021-08-08 16:01:18
ニュース	BBC News - Home	'The weather robbed us all' - first England-India Test drawn as rain ruins final day	https://www.bbc.co.uk/sport/cricket/58137389	x The weather robbed us all x first England India Test drawn as rain ruins final dayEngland s first Test against India is abandoned as a draw after persistent rain prevents any play on the final day at Trent Bridge	2021-08-08 16:01:50
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	2021-08-08 16:18:18