投稿時間:2023-02-27 10:22:03 RSSフィード2023-02-27 10:00 分まとめ(26件)

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IT	ITmedia 総合記事一覧	[ITmedia Mobile] 「Xiaomi 13」シリーズ、欧州デビュー　ライカ非搭載の「Lite」追加	https://www.itmedia.co.jp/mobile/articles/2302/27/news087.html	itmediamobile	2023-02-27 09:04:00
AWS	lambdaタグが付けられた新着投稿 - Qiita	[AWS]APIGate+Lambdaで限定のAPIを作る	https://qiita.com/yukiaprogramming/items/eab90a994bd0589045c6	apigateway	2023-02-27 09:11:21
デザイン	コリス	VS Codeでコードがさらに見やすくなる！ ネストされたブロックを強調表示するVS Codeの機能拡張「Blockman」	https://coliss.com/articles/build-websites/operation/work/vscode-extension-to-highlight-nested-code-blocks.html	続きを読む	2023-02-27 00:36:09
js	JavaScriptタグが付けられた新着投稿 - Qiita	React + TypeScript: Storybookを使ってみる	https://qiita.com/FumioNonaka/items/7394f96f7d0090f2b10c	storybook	2023-02-27 09:46:28
AWS	AWSタグが付けられた新着投稿 - Qiita	[AWS]APIGate+Lambdaで限定のAPIを作る	https://qiita.com/yukiaprogramming/items/eab90a994bd0589045c6	apigateway	2023-02-27 09:11:21
Git	Gitタグが付けられた新着投稿 - Qiita	git でユーザー名、メールアドレス、デフォルトブランチ名を確認するコマンド	https://qiita.com/amatouyamahodo/items/353438b20f58045c6918	emailmyemailexamplecomi	2023-02-27 09:29:25
海外TECH	DEV Community	How to Build an Answer-to-Earn Platform with React, Solidity, and CometChat	https://dev.to/daltonic/how-to-build-an-answer-to-earn-platform-with-react-solidity-and-cometchat-2hj2	How to Build an Answer to Earn Platform with React Solidity and CometChatWhat you will be building see the demo Sepolia Testnet and git repo IntroductionIf you re looking to create an innovative platform that motivates users to share their knowledge and skills this tutorial on developing an Answer to Earn platform using React Solidity and CometChat could be just what you need This tutorial combines blockchain technology real time communication and user generated content to create an interactive platform that rewards users for their contributions and encourages engagement and cooperation Whether you re a seasoned developer or a beginner this step by step guide will help you bring your vision to life and transform the way people share information So why not begin building your own Answer to Earn platform today and revolutionize learning and information sharing By the way Subscribe to my YouTube channel to learn how to build a Web app from scratch I also offer a wide range of services be it private tutorship hourly consultancy other development services or web educational material production you can book my services here Now let s jump into this tutorial PrerequisitesYou will need the following tools installed to build along with me Nodejs Important Ethers jsHardhatYarnMetamaskReactTailwind CSSCometChat SDK Installing DependenciesClone the starter kit and open it in VS Code using the command below git clone lt PROJECT NAME gt cd lt PROJECT NAME gt Now run yarn install on the terminal to have all the dependencies for this project installed Configuring CometChat SDKFollow the steps below to configure the CometChat SDK at the end you must save these keys as an environment variable STEP Head to CometChat Dashboard and create an account STEP Log in to the CometChat dashboard only after registering STEP From the dashboard add a new app called AE STEP Select the app you just created from the list STEP From the Quick Start copy the APP ID REGION and AUTH KEY to your env file See the image and code snippet Replace the REACT COMET CHAT placeholder keys with their appropriate values REACT APP COMETCHAT APP ID REACT APP COMETCHAT AUTH KEY REACT APP COMETCHAT REGION The env file should be created at the root of your project Configuring the Hardhat scriptAt the root of this project open the hardhat config js file and replace its content with the following settings The above script instructs hardhat on these three important rules Networks This block contains the configurations for your choice of networks On deployment hardhat will require you to specify a network for shipping your smart contracts Solidity This describes the version of the compiler to be used by hardhat for compiling your smart contract codes into bytecodes and abi Paths This simply informs hardhat of the location of your smart contracts and also a place to dump the output of the compiler which is the ABI Configuring the Deployment ScriptNavigate to the scripts folder and then to your deploy js file and paste the code below into it If you can t find a script folder make one create a deploy js file and paste the following code into it When run as a Hardhat deployment command the above script will deploy your specified smart contract to the network of your choice Check out this video to learn how to properly set up a web project with ReactJs The Smart Contract FileNow that we ve completed the initial configurations let s create the smart contract for this build Create a new folder called contracts in your project s src directory Create a new file called A nswerEarn sol within this contracts folder this file will contain all of the logic that governs the smart contract Copy paste and save the following codes into the A nswerEarn sol file See the complete code below I have a book to help your master the web language Solidity grab your copy here Now let s go over some of the details of what s going on in the smart contract above We have the following items StructsQuestionStruct This contains necessary information about every question asked on the platform CommentStruct This carries information about every comment on our platform State VariablesOwner This keeps track of the deployer of the contract platformCharge This holds the platform s percentage fee on every payment made on the platform totalQuestion This stores the number of questions that have not been deleted from the platform MappingsquestionExists This checks if a question exists or has not been deleted from the platform commentsOf This holds the total comments of a particular question ConstructorThis is used to initialize the state of the smart contract variables and other essential operations In this example we assigned the deployer of the smart contract as the owner Events and ModifiersAction This logs out the information of every action carried out on the platform ownerOnly This prevents every other user except the owner from accessing some functions in the platform Question FunctionsaddQuestion This function takes a bounty question from a user and makes it available for others to compete for the best answer updateQuestion This function is used to edit the question supplied by the owner of the question deleteQuestion This function is used to delete the question supplied by the owner of the question showQuestions This function is responsible for displaying all questions in the platform The question must already be existing and is not deleted showQuestion This function returns a single question by its unique Id isQuestionOwner This function returns true false if a user owns a question Comment FunctionsaddComment This function allows users to supply an answer to a particular question in hopes of winning the prize on the question updateComment This function is used to edit an answer provided that the caller is the owner of the answer comment deleteComment This function is used to delete a comment provided that the caller is the owner of the answer comment getComments This function returns all comments answers to a particular question getComment This returns a single comment for a particular question on the platform isCommentOwner This function returns true false if a user owns a comment Funds functionspayBestComment This function is used by a question owner to pay the respondent of the most preferred answer refund This function is used for requesting a refund by a question owner provided that answers have not been submitted yet payTo This function is used internally to make payments to the address provided changeFee This function is used to change the platform s fee With all the above functions understood copy them into a file named AnswerEarn sol in the contracts folder within the src directory Next run the commands below to deploy the smart contract into the network yarn hardhat node Terminal yarn hardhat run scripts deploy js network localhost Terminal If you need further help configuring Hardhat or deploying your Fullstack DApp watch this video Developing the FrontendNow that we have our smart contract on the network and all of our artifacts bytecodes and ABI generated let s get the front end ready with React ComponentsIn the src directory create a new folder called components to house all of the React components for this project Header Component The Header component includes the platform logo a search bar and a button with the connected account address See the code below QuestionTitle ComponentThis component includes a header a button for asking questions and information on all other questions Here is the code AddQuestion ComponentThis is a modal that lets users create questions on the platform To successfully submit a question users will need to provide a title bounty prize tag and question description Here are the relevant codes QuestionSingle ComponentThis component includes question details such as the question owner and prize QuestionComments ComponentThis code shows the user s comments or answers to the question owner AddComment ComponentThis component allows users to answer a specific question through an interface See the code below UpdateQuestion ComponentThis component allows the question owner to make edits to their question It is a modal component that applies adjustments Here s the code UpdateComment ComponentThis code allows a user to edit comments when answering a question but ownership will still be checked DeleteQuestion ComponentThis component asks for confirmation from the question owner before deleting a question and it is designed as a modal component Please refer to the code below DeleteComment ComponentThis component asks comment owners for confirmation before deleting comments and is modal The accompanying code is shown below ChatModal ComponentThis modal component makes use of cometChat SDK for handling chats between users See the code below AuthChat ComponentThis component handles user authentication signup and login before allowing them to chat See the code below ChatCommand Component This component lets question owners create a group chat for answerers to join and earn rewards Code ViewsCreate the views folder inside the src directory and sequentially add the following pages within it HomePageThis component creates a visually appealing interface by merging the QuestionTitle and QuestionSingle components Please refer to the code below for details Question PageThis page has many components for commenting payingout and chatting See the code below The App jsx fileWe ll look at the App jsx file which bundles our components and pages Other Essential ServicesThe services listed below are critical to the smooth operation of our application The Store ServiceThe application relies on critical services including the “Store Service which uses the react hooks global state library to manage the application s state To set up the Store Service create a store folder within the src folder and create an index jsx file within it then paste and save the provided code The Blockchain ServiceCreate a folder called services inside the src folder Within the services folder create a file named blockchain jsx and save the provided code inside the file The Chat ServiceCreate a file named chat jsx within the services folder and copy the provided code into the file before saving it The Index jsx fileNow update the index entry file with the following codes To start the server on your browser run these commands on two terminals assuming you have already installed Metamask Terminal one yarn hardhat node Terminal Twoyarn hardhat run scripts deploy jsyarn startRunning the above commands as instructed will open your project on your browser And there you have it for how to build a blockchain voting system with React Solidity and CometChat If you re confused about web development and want visual materials here s one of my videos that will teach you how to create an NFT Minting website ConclusionIn conclusion the decentralized web and blockchain technology are here to stay and creating practical applications is a great way to advance your career in web development The tutorial showed how to create an answer to earn system using smart contracts to facilitate payments along with the CometChat SDK for group discussions If you are ready to dive deeper into web development watch my free videos on my YouTube channel Or book your private web classes with me to speed up your web learning process That being said I ll see you next time and have a wonderful day About the AuthorGospel Darlington is a full stack blockchain developer with years of experience in the software development industry By combining Software Development writing and teaching he demonstrates how to build decentralized applications on EVM compatible blockchain networks His stacks include JavaScript React Vue Angular Node React Native NextJs Solidity and more For more information about him kindly visit and follow his page on Twitter Github LinkedIn or his website	2023-02-27 00:11:32
Apple	AppleInsider - Frontpage News	Massdrop x Sennheiser HD 58X Jubilee review: Headphones for serious listening	https://appleinsider.com/articles/23/02/26/massdrop-x-sennheiser-hd-58x-jubilee-review-headphones-for-serious-listening?utm_medium=rss	Massdrop x Sennheiser HD X Jubilee review Headphones for serious listeningAnyone interested in wired headphones should look at Massdrop x Sennheiser HD X Jubilee but those more focused on streaming music from their recent iPhone should skip in favor of a wireless option Massdrop x Sennheiser HD X JubileeThese headphones are targeted at audiophiles or anyone seeking thoughtfully designed audio products There is no app that will connect to these Read more	2023-02-27 00:49:10
Linux	OMG! Ubuntu!	TUXEDO OS 2 Released with KDE Plasma 5.27, Linux 6.1	https://www.omgubuntu.co.uk/2023/02/tuxedo-os-2-released	TUXEDO OS Released with KDE Plasma Linux A big update to TUXEDO Computers Ubuntu based Linux distro is out shipping the latest KDE Plasma release Linux kernel and a bit more This post TUXEDO OS Released with KDE Plasma Linux is from OMG Ubuntu Do not reproduce elsewhere without permission	2023-02-27 00:17:29
金融	ニッセイ基礎研究所	EUのデジタルサービス法施行－欧州における違法コンテンツへの対応	https://www.nli-research.co.jp/topics_detail1/id=74016?site=nli	仲介サービス提供者の基本的な義務仲介サービス提供者の一般義務仲介サービスの提供者は、違法なコンテンツの検出、特定および削除、またはアクセスの無効化を目的とした自主的な調査またはその他の措置を実施したことにより、必要な措置を講じたという理由のみで、条、条、および条に規定された責任の免除を受ける資格がないとはみなされない条。	2023-02-27 09:59:39
金融	ニッセイ基礎研究所	米個人所得・消費支出（23年1月）－PCE価格指数が前月比+0.6％と市場予想（+0.5％）を上回り、22年6月以来の高い伸び	https://www.nli-research.co.jp/topics_detail1/id=74019?site=nli	月の名目個人消費前月比は、財消費が前月とヵ月ぶりにプラスに転じたほか、サービス消費が前月と前月から伸びが加速した図表。	2023-02-27 09:40:14
ニュース	BBC News - Home	Chris Mason: Brexit breakthrough is moment of political jeopardy	https://www.bbc.co.uk/news/uk-politics-64781286?at_medium=RSS&at_campaign=KARANGA	chris	2023-02-27 00:48:44
ニュース	BBC News - Home	NHS staff cried in safety interviews, says watchdog	https://www.bbc.co.uk/news/health-64727516?at_medium=RSS&at_campaign=KARANGA	pressure	2023-02-27 00:07:54
ニュース	BBC News - Home	Job centre staff to get bonuses for getting people work	https://www.bbc.co.uk/news/business-64776968?at_medium=RSS&at_campaign=KARANGA	credit	2023-02-27 00:02:38
ニュース	BBC News - Home	Cost of living: Ofgem price cap leads to debate over energy bill support	https://www.bbc.co.uk/news/business-64748135?at_medium=RSS&at_campaign=KARANGA	support	2023-02-27 00:06:04
ニュース	BBC News - Home	Physical 100: Are K-reality shows the next Korean cultural trend?	https://www.bbc.co.uk/news/64741961?at_medium=RSS&at_campaign=KARANGA	physical	2023-02-27 00:34:32
ニュース	BBC News - Home	Ukraine war: Designing oufits for Beyoncé and Smith Smith from Kyiv	https://www.bbc.co.uk/news/newsbeat-64732658?at_medium=RSS&at_campaign=KARANGA	frolov	2023-02-27 00:17:11
ニュース	BBC News - Home	Ocean plastic: How tech is being used to clean up waste problem	https://www.bbc.co.uk/news/technology-64744926?at_medium=RSS&at_campaign=KARANGA	marine	2023-02-27 00:12:03
ニュース	BBC News - Home	Adam Lambert: 'I didn't think I'd have a shot'	https://www.bbc.co.uk/news/entertainment-arts-64722501?at_medium=RSS&at_campaign=KARANGA	industry	2023-02-27 00:08:40
ニュース	BBC News - Home	Ukraine war: On board low-flying helicopter with renowned airman	https://www.bbc.co.uk/news/world-europe-64779505?at_medium=RSS&at_campaign=KARANGA	airman	2023-02-27 00:19:37
ニュース	BBC News - Home	The high-tech weeding machines cutting herbicide use	https://www.bbc.co.uk/news/business-64742513?at_medium=RSS&at_campaign=KARANGA	individual	2023-02-27 00:10:00
ニュース	BBC News - Home	Rio Open: Cameron Norrie wins fifth ATP title with thrilling victory over Carlos Alcaraz	https://www.bbc.co.uk/sport/tennis/64780468?at_medium=RSS&at_campaign=KARANGA	Rio Open Cameron Norrie wins fifth ATP title with thrilling victory over Carlos AlcarazBritish number one Cameron Norrie beats Carlos Alcaraz in a thrilling Rio Open final just seven days after losing to the Spaniard in the final of the Argentina Open	2023-02-27 00:10:10
ニュース	Newsweek	メタ、対話型AIを公開──「ChatGPT」やグーグル「Bard」に対抗	https://www.newsweekjapan.jp/stories/technology/2023/02/aichatgptbard.php	メタ、対話型AIを公開ー「ChatGPT」やグーグル「Bard」に対抗フェイスブックの親会社であるメタは現地時間月日以下、すべて現地時間、情報を要約したりコンテンツを生成することができるAIを研究者などに向けて公開すると明かした。	2023-02-27 09:40:00
マーケティング	MarkeZine	承認欲求vs周りの目、友情の築き直し、チル、パーソナライズ　Z世代のインサイトにまつわる4つのカギ	http://markezine.jp/article/detail/41351	承認欲求vs周りの目、友情の築き直し、チル、パーソナライズZ世代のインサイトにまつわるつのカギマーケティング業界に限らず、世の中全体で「Z世代」がバズワードのようになっている。	2023-02-27 09:30:00
マーケティング	MarkeZine	【視聴無料】CDP×MAを活用してLTV120％を実現した事例を紹介！	http://markezine.jp/article/detail/41487	視聴	2023-02-27 09:30:00
マーケティング	AdverTimes	「よし、本当にカッコいい時に解散しよう！」と決めた（BiSH）【第1回】	https://www.advertimes.com/20230227/article411846/	東京ドーム公演	2023-02-27 01:00:19