投稿時間:2021-12-25 02:22:11 RSSフィード2021-12-25 02:00 分まとめ(22件)

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Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	計算式の値を個数から%に変更したい	https://teratail.com/questions/375468?rss=all	計算式の値を個数からに変更したい前提・実現したいことプログラマーさんに数値シミュレーションを作ってもらいました。	2021-12-25 01:52:21
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	Django: JavaScriptで作成した2つ目の配列をDjangoのViewで受け取りたい	https://teratail.com/questions/375467?rss=all	DjangoJavaScriptで作成したつ目の配列をDjangoのViewで受け取りたい前提・実現したいことDjangoで英単語学習をサポートするシステムを作っています。	2021-12-25 01:26:54
AWS	AWSタグが付けられた新着投稿 - Qiita	Chime SDK と IVS を組み合わせた AWS Sample を動かしてみた	https://qiita.com/sugimount-a/items/5ea0cb12e9e6007bd35a	デプロイするための環境準備デプロイのために、いくつかツールが必要です。	2021-12-25 01:49:53
AWS	AWSタグが付けられた新着投稿 - Qiita	[CloudWatch Logs]ロググループにアクセス（エラー）ログが反映されないときの対処方法	https://qiita.com/kmmz/items/5678d252dd7f15d78d22	catvarlogawslogslogでエラー状況を確認すると、以下のことが書いてある。	2021-12-25 01:28:59
海外TECH	MakeUseOf	Crunchyroll Free vs. Premium: Should You Subscribe?	https://www.makeuseof.com/crunchyroll-free-vs-premium/	premium	2021-12-24 16:30:11
海外TECH	DEV Community	You Don't Need To Learn ReactJS Now	https://dev.to/elijahtrillionz/you-dont-need-to-learn-reactjs-now-2an	You Don x t Need To Learn ReactJS NowNow this isn t another article that tries to stop you from learning and using React and other related libraries and frameworks like VueJS Rather it is an article that aims to help you understand what React is when you need to learn it and what you need to learn it So this article will help you learn and use React at the right time I will also provide some useful free courses crash courses on it Let s get started What is React React is a popular JavaScript library that is used to build user interfaces and single page applications With React a collection of prewritten code snippets can be used and reused to perform common JavaScript functions That is ReactJS allows us to create reusable UI components These components are what make up our website An example of a reusable UI component is the tweet section in Twitter See what I mean in the image below Twitter simply created a component for this section and used it for all tweets in the app Twitter uses React for its web app But you may ask if React is for building single page then how the hell does Twitter have several pages Well there are maintained supporting packages and libraries that make building complex applications with multiple pages like Twitter with React possible While some people still use supporting packages others have ported to using React frameworks like Next and Remix for building simple and complex applications Another framework to learn on top React you may say But trust me they are pretty easy to learn But we won t talk more about them because it is beyond the scope of this article What role does React play in web development React plays a very vital role in creating interactive web applications If you are an aspiring front end developer or full stack web developer who wants to work for a company or simply create web apps as a freelancer or a startup then you need React Web applications are different from websites You don t need React to make a website static website Web apps are dynamic websites that look and feel like desktop or mobile applications On these websites you can register an account make posts do things that you d usually do in an application Without React making a dynamic website will not just be tedious for the developer but also difficult to use Because for each page transition the browser will have to reload But it isn t so with React When do I learn React ReactJS as you know it is a JavaScript library and as many libraries and frameworks they require a proper understanding of the language itself It s no use trying to learn a tool that makes using another tool easier when you have no or low clue of how the primary tool works ReactJS and other JavaScript libraries and frameworks all make use of JavaScript in it a lot So it is expedient for you to know vanilla JavaScript to a great extent before learning any JavaScript library framework Understand this React is not a special thing to learn It s not like a mini language that you have to learn to build cool web apps Learning React to me is not a matter of learning a new syntax or something it s a matter of understanding how React has decided to work with JavaScript And so you re like Ok React this is how you like it I will play by your rule So that means React uses JavaScript s syntax in all ramifications and a little bit of HTML JSX That is why when you know JavaScript enough you wouldn t find it difficult moving to other libraries and frameworks So these libraries and frameworks are not replacing the JavaScript syntax you re not going to findif condition statement s else statement s replacing JavaScript s if and else in a library For example in React we would popularly useconst state setState useState initial If you have never worked with destructuring arrays in JavaScript you d think this is some kind of React s syntax you may think here we have the state and setState in an array together and assigned to the useState function ok this is React You d have no clue what this is This may sound funny if you are familiar with array destructuring but some developers are in this situation And trust me if this is you it s not a good place to be But luckily there is a solution learn enough JavaScript So to what extent should you learn JavaScript before learning React I think you should learn everything your course book outlines I will outline some things Here is a way to learn JavaScript in such a situation forget about React and other libraries frameworks Don t learn JavaScript because you wanna learn React don t have such an attitude of learning Learn JavaScript because you want to be a web developer who makes cool web apps Because the truth is React may not always be here React may be gone in years or even less You never can tell So when you re done with your JavaScript course that s still not the right time to jump into React Instead try to master the JavaScript syntax you ve learned with exercises projects and even websites lots of them To do this you can google out projects for beginners Brad Traversy has a great repository of vanilla web JavaScript projects try building all of them on your own When all this is done I believe you re ready to learn React Now am not sure which JavaScript course you took and what you ve learned but to learn React you need to know these topics explicitly including the basics Data Types string number booleans arrays objects undefined null Arithmetic operators and arithmetic operations logical operators ternary operator expressions variables const and let scopesConditional statements if and else switch and caseLoops for for in for of while do whileFunctions arrow functions closures callbacksClasses and other ES featuresDOMJSONThe global objectAsynchronous JavaScript settimeout setintervalBasically everything I d recommend using the Wschools JavaScript course outline Where do I learn React This question will also answer How do I learn React As I said before React is not a special or hard thing to learn This is the way I learn frameworks libraries and I recommend you try it too Follow along with a tutorialPlay around with the docsBuild more projects Follow along with a tutorialThis is basically coding along with a React tutorial You can find a React crash course on YouTube for free You don t have to pay to learn React at all I d recommend a crash course where there is a little bit of explanation on how React works and then a project I recommend this React crash course for by Traversy Media The crash course this step will help introduce you to React and how it works It gives you a short overview of what you d be working with Play around with the docsReact has a very good documentation for its library The documentation gives you more insight into the library shows you what more you can do with it React s documentation is designed to take you from the basics to the advanced React step by step Playing around the docs simply means studying the docs and trying out some of the examples used You can study React s docs like the way you study a course in college or something The point is React s documentation is straight to the point so you studying line by line or chapter by chapter is not a waste of time Studying the docs shouldn t take more than a week for an average person Build more projectsIf you d notice I said more projects rather than a project Now this is because if you follow the first step you d already built your first project in React now you just need to build more After building more projects I often recommend checking out some more tutorials on basic projects you can search for more specific projects and find a tutorial on them This will always introduce you to a newer concept and perspective But try not to end up doing too much tutorial or from different authors is fine so you don t end up in tutorial hell These steps will help you cover the basics and the more you build projects see from a different perspective the more you will become efficient in it When do you need to use ReactI have already said this before but I ll just re iterate React is not always needed You should only use React when you are working on dynamic websites or as some developers may say complex websites You can always use vanilla JavaScript for small projects and static websites For example if you re to build a business website for a client The kind of website where you hard code everything where visitors come to see about the business like the contact info what the business is about For example a law firm Such websites don t require React No matter the pages you re to create it would be easier for you with vanilla JavaScript But if you re trying to build the next Twitter DEV community personal blog which is always updated then you d need the likes of React to easily build them ConclusionReact is a cool tool for web development and as cool as it is it s very easy to learn Learning it at the right time puts you at a higher advantage To step up your web development career with React you can learn NextJS or Remix easily You can follow the same steps I mentioned here for learning React to learn one of them They are a lot easier to learn than React itself Thanks for reading You can leave a comment below to let me know what you think about this article If you like this article please like and share to spread love And don t forget to please give me a shout out and follow on Twitter elijahtrillionz	2021-12-24 16:07:46
Apple	AppleInsider - Frontpage News	Dutch regulators rule Apple must make App Store changes before Jan. 15	https://appleinsider.com/articles/21/12/24/dutch-regulators-rule-apple-must-make-app-store-changes-before-jan-15?utm_medium=rss	Dutch regulators rule Apple must make App Store changes before Jan Dutch antitrust regulators have ruled that Apple s App Store broke competition laws in the country and have demanded changes to its in app payment policy early in Apple logo on buildingAuthorities in the country have been investigating Apple s App Store since on allegations that the company abuses its dominance in the marketplace In a decision unsealed on Friday but made in October Dutch regulators ruled that Apple s requirement that developers use its in app payment system was anti competitive Read more	2021-12-24 16:53:02
海外科学	NYT > Science	Robert H. Grubbs, 79, Dies; Breakthrough in Chemistry Led to a Nobel	https://www.nytimes.com/2021/12/24/science/robert-h-grubbs-dead.html	Robert H Grubbs Dies Breakthrough in Chemistry Led to a NobelHe helped perfect the manufacturing of compounds that are now used everything from plastics to pharmaceuticals marking an advance in “green chemistry	2021-12-24 16:20:30
金融	金融庁ホームページ	「金融商品取引業等に関する内閣府令及び金融サービス仲介業者等に関する内閣府令の一部を改正する内閣府令（案）」等について公表しました。	https://www.fsa.go.jp/news/r3/shouken/20211224-3/20211224-3.html	仲介業者	2021-12-24 17:00:00
金融	金融庁ホームページ	「優越的地位の濫用防止に係る情報収集窓口」（仮称）の設置について公表しました。	https://www.fsa.go.jp/news/r3/ginkou/20211224-2.html	優越的地位の濫用	2021-12-24 17:00:00
金融	金融庁ホームページ	「金融商品取引法第百六十一条の二に規定する取引及びその保証金に関する内閣府令第六条第一項第四号の規定に基づき認可金融商品取引業協会の規則を指定する件（案）」のパブリックコメント結果について公表しました。	https://www.fsa.go.jp/news/r3/shouken/20211224/20211224.html	内閣府令	2021-12-24 17:00:00
金融	金融庁ホームページ	「経営者保証に関するガイドライン」の活用実績について公表しました。	https://www.fsa.go.jp/news/r3/ginkou/20211224.html	経営者	2021-12-24 17:00:00
金融	金融庁ホームページ	「FinTech実証実験ハブ」支援決定案件の実験結果について公表しました。	https://www.fsa.go.jp/news/r3/sonota/20211224/20211224.html	fintech	2021-12-24 17:00:00
金融	金融庁ホームページ	貸金業関係資料集を更新しました。	https://www.fsa.go.jp/status/kasikin/20211224/index.html	関係	2021-12-24 17:00:00
金融	金融庁ホームページ	「レバレッジ比率規制に関する告示の一部改正（案）」等について公表しました。	https://www.fsa.go.jp/news/r3/ginkou/20211224-4.html	規制	2021-12-24 17:00:00
ニュース	BBC News - Home	Covid: Glimmer of Christmas hope on Omicron, says Jenny Harries	https://www.bbc.co.uk/news/uk-59776415?at_medium=RSS&at_campaign=KARANGA	harries	2021-12-24 16:26:20
ニュース	BBC News - Home	Social care: Immigration rules to be relaxed to recruit staff	https://www.bbc.co.uk/news/uk-politics-59785227?at_medium=RSS&at_campaign=KARANGA	workers	2021-12-24 16:48:05
ニュース	BBC News - Home	Danny Hodgson: Family Christmas for injured footballer is 'perfect gift'	https://www.bbc.co.uk/news/uk-england-cumbria-59779863?at_medium=RSS&at_campaign=KARANGA	celebration	2021-12-24 16:30:25
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?at_medium=RSS&at_campaign=KARANGA	cases	2021-12-24 16:45:12
ビジネス	ダイヤモンド・オンライン - 新着記事	【簡単なのに、9割の人が知らないコピーライティング技術】 ダントツの収益が上がる 仕組みのつくり方 - コピーライティング技術大全	https://diamond.jp/articles/-/290083	【簡単なのに、割の人が知らないコピーライティング技術】ダントツの収益が上がる仕組みのつくり方コピーライティング技術大全発売たちまち大重版Amazonランキング第位広告・宣伝、。	2021-12-25 01:50:00
ビジネス	ダイヤモンド・オンライン - 新着記事	「孤独を愛する生き方」を選ぶべき理由 - 孤独からはじめよう	https://diamond.jp/articles/-/291608	自分	2021-12-25 01:45:00
ビジネス	ダイヤモンド・オンライン - 新着記事	身近な人が亡くなったら、「高額療養費」をもらえないか必ず確認！ - ぶっちゃけ相続「手続大全」	https://diamond.jp/articles/-/291740	高額療養費	2021-12-25 01:40:00