投稿時間:2023-03-26 03:08:18 RSSフィード2023-03-26 03:00 分まとめ(9件)

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python	Pythonタグが付けられた新着投稿 - Qiita	【AtCoder】ABC295 のA,B,C,D,E における Python解説	https://qiita.com/Waaaa1471/items/8eae29ac9f7cc9d0253c	abcde	2023-03-26 02:17:25
js	JavaScriptタグが付けられた新着投稿 - Qiita	【JavaScript】JavaScriptまとめ④（関数）	https://qiita.com/tk082330/items/fd8f5075fe166586d015	javascript	2023-03-26 02:06:23
Ruby	Railsタグが付けられた新着投稿 - Qiita	Laravel で lockForUpdate すると reload されるのか Rails と比較した	https://qiita.com/yuinore/items/5471c2a2f95408f9db53	laravel	2023-03-26 02:21:03
技術ブログ	Developers.IO	ChatGPTを安全に利用するための攻撃への理解と対策のベストプラクティス	https://dev.classmethod.jp/articles/thought-about-best-practices-for-safe-use-of-chatgpt/	chatgpt	2023-03-25 17:43:05
海外TECH	MakeUseOf	Is Facebook Messenger Not Working on Your Windows PC? Try These 10 Fixes	https://www.makeuseof.com/windows-facebook-messenger-not-working/	Is Facebook Messenger Not Working on Your Windows PC Try These FixesFacebook Messenger is great for connecting to friends and businesses alike but sometimes it struggles to do its job on a Windows PC	2023-03-25 17:16:16
海外TECH	DEV Community	💲 Build your resume and get paid	https://dev.to/acidop/build-your-resume-and-get-paid-2imf	Build your resume and get paidMoney is a great motivator but let s be honest earning big bucks is not easy However what if we told you there is a way to make a lot of money while building your portfolio Sounds interesting doesn t it Well in this article we re going to tell you about bounties a fun and easy way to earn money while building your portfolio I recently did a bounty on Replit for hence the idea of writing this blog What Are Bounties Bounties are opportunities to earn money by completing specific coding tasks or projects These tasks or projects are typically offered by companies or individuals who need a particular software application feature or functionality built Companies post their ideas or requirements and offer money to individuals who solve them It s a win win situation for both parties The company gets its work done and you get paid for your services A programming bounty works by the person or organization offering the bounty setting a reward amount that they will pay to a programmer who successfully completes the task or project The reward amount can vary widely depending on the complexity of the task and the importance of the project to the person or organization offering the bounty The Benefits of Working on BountiesThere are many benefits to working on bounties Here are some of them You can earn money while building your portfolio Opportunity to work on a variety of projects and gain experience Build a portfolio of completed projects Ability to showcase skills and expertise to potential employers or clients Chance to solve interesting problems and learn new technologies Who Can Qualify for Bounties The good news is that anyone can work on bounties Whether you re a beginner or an experienced professional there s something for everyone Some bounties are more complex and require a lot of experience while others are simple and can be completed by beginners Keep in mind that the more experience you have higher the chances of you getting hired for a bounty and also higher payout However if you are a beginner you misght have a hard time finding work as it is somewhat competitive But there s no harm in trying right You might want to start with smaller bounties and work your way up Tips to choose the right BountyChoose projects that align with your interests and skills Look for bounties that match your programming language and frameworks expertise Consider the level of difficulty of the project Beginners should start with simpler projects to build their confidence and skill set Check the deadline for the bounty Ensure that you can complete the project within the timeframe given Look at the rewards offered for completing the bounty Consider the time investment needed versus the potential payout Research the reputation of the company or individual who posted the bounty Check reviews or feedback from previous bounty hunters Just to be aware of any scams How to approach Break down the project into smaller tasks This will help you stay organized and focused on completing the project Use version control such as Git to track your changes and collaborate with others Communicate with the bounty poster and other developers on the project This can help ensure that everyone is on the same page and that the project is moving forward smoothly Ask for help when needed Don t be afraid to reach out to other developers or the bounty poster for assistance or clarification Document your progress issues faced and how you overcame them This will help you in creating a portfolio and also for the bounty poster to understand the progress you have made Quality of workQuality is important because it showcases your skills as a developer It also somewhat ensures the success of the project of your client Ensure your code is well documented easy to read and understand Try to follow best practises set by the community or the company Where to find Bounties ReplitGitcoinTopcoderBountysourceThese are just a few that I know of You can find many more Remember google is your best friend if you are a developer ConclusionBounties are a fun and easy way to earn money while building your portfolio They offer a great opportunity for you to learn and experiment while working with top companies from around the world So if you re looking to make some extra cash while building your portfolio be sure to check out bounties And if you share your experiences on social media you might inspire others to give bounties a try too	2023-03-25 17:49:53
海外TECH	DEV Community	Understanding React Context: A Comprehensive Tutorial for Beginners	https://dev.to/nitinfab/understanding-react-context-a-comprehensive-tutorial-for-beginners-2cpl	Understanding React Context A Comprehensive Tutorial for BeginnersReact has become a go to choice for front end development due to its ease of use and flexibility in creating dynamic and interactive user interfaces However as applications built with React become more complex managing the application state can become challenging as prop drilling can easily get out of hand This is where the Context API of React can be extremely useful Context based state management is a technique used in React to manage application states in a centralized location This makes it easier to access and modify different parts of the application without the need to pass props down through multiple levels of the component hierarchy By doing so developers can make their code more maintainable and efficient In this guide we ll explore the core concepts behind context based state management in React including how it can be used and how it can be implemented in practice We ll cover various aspects of context such as creating a context consuming a context and when to use context So let s dive in React Context Facilitating Easy Data Sharing Across ComponentsBefore learning the theory behind context it s a good idea to understand why context is used And the straightforward answer is to solve the issue of prop drilling In React “prop drilling refers to the issue of passing down specific props from a parent component to multiple child components which often requires manual intervention and can be a cumbersome process Below is an example of a parent component with two child components that have more child components of their own For instance imagine we need certain props in components and ーwe would have to pass those props down manually to each component and sometimes it is not even possible to have the same props in two components with different parent components This also introduces a new issue updating the data Because the same prop is passed down so many times it becomes hard to manage which component will be responsible for updating the data and how this might affect the re rendering of the component tree This can be a frustrating problem to deal with especially in large applications where the number of components involved can be substantial To address this issue we can use React Context or other state management libraries like Redux React Context Explained A Comprehensive OverviewAs we know React Context is a powerful feature in React that allows developers to share data between components without having to pass props manually Using Context in your React application requires only three crucial steps Create the contextThe first step to using Context in your React application is to create a Context object This object is created using the createContext function provided by the React module This function takes an initial value as a parameter and returns a new Context object const MyContext React createContext defaultValue Provide a context valueAfter creating the Context object you need to provide a value to it This value is passed to child components using a Provider component This Provider component is also created using the Context object which you created in step one The Provider component is placed at the top of the component tree to share the Context value with all child components You can pass any value to the Provider component that you want to share between components lt MyContext Provider value Hello World gt lt YourApp gt lt MyContext Provider gt Consume the context valueOnce you have provided a value to the Context using the Provider component you can consume that value in any child component using a Consumer component You can even use the “useContext hook instead of the Consumer component to simplify this process even further We will be going to use the useContext hook in this blog const value React useContext MyContext Let s take an example import React from react const MyContext React createContext defaultValue function User const value React useContext MyContext return lt h gt value lt h gt function App return lt MyContext Provider value Hello World gt lt User gt lt MyContext Provider gt export default AppIn this example we define a Context object called MyContext using the createContext method provided by the React library We set a default value of defaultValue in case the MyContext Provider component is not used In the User component we use the useContext hook provided by React to consume the value of the MyContext object We set the value variable equal to the value of MyContext using the useContext hook We then render the value of MyContext in an h element Lastly in the App component we use MyContext Provider component to set the value of the MyContext object to “Hello World We then render a User component as a child of MyContext Provider component In a similar way you can take the value as “Hello World in any of your components and render it A Simple React Context Example for Handling User AuthenticationWell managing the user authentication state in a React application can be a tricky task especially when multiple components need access to this information One solution to this problem is using the Context API a feature in React that allows components to share data without passing props down through every level of the component tree So let s take an example where we will handle user authentication with the help of Context and useState hook Here is the code for that import React createContext useContext useState from react import App css const UserContext createContext null const Navigation handleLogin handleLogout gt const user useContext UserContext return lt nav className navigation gt lt h gt Locofy lt h gt lt ul className links gt lt li gt Home lt li gt lt li gt About lt li gt lt li gt user lt div className user info gt lt img src user profilePic alt User profile gt lt span gt user name lt span gt lt button onClick handleLogout gt Logout lt button gt lt div gt lt button onClick handleLogin gt Login Signup lt button gt lt li gt lt ul gt lt nav gt const App gt const user setUser useState null const handleLogin gt const newUser name John Doe email johndoe example com profilePic setUser newUser const handleLogout gt setUser null return lt UserContext Provider value user gt lt Navigation handleLogin handleLogin handleLogout handleLogout gt lt UserContext Provider gt export default App In this code we have used React Context to handle user authentication in a navigation bar The code starts by creating a UserContext using createContext and sets its default value to null The Navigation component is then created with two props “handleLogin and “handleLogout which will be used to handle user authentication The Navigation component uses the useContext hook to access the UserContext and display the user information in the navigation bar If the user is not authenticated the component shows a “Login Signup button Lastly inside the App component we have the useState hook to manage the user state It also has two functions “handleLogin and “handleLogout which set the user state accordingly And we have done a bit of styling to make it better margin padding box sizing border box navigation background color fff display flex justify content space between align items center padding px h margin right px ul display flex justify content space between align items center padding px li margin right px list style none user info display flex align items center user info img width px height px border radius margin right px In a similar way you can use Context inside your web app to solve the issue of prop drilling How to Decide the Best Approach for Your React ProjectAs we know Context is designed to simplify the sharing of data across various components in your application This feature is particularly useful when you need to pass data that can be used in multiple parts of your app regardless of their location in the component hierarchy Some examples of the types of data that are suitable for React Context based on the official documentation include theme data user data or preferred language user s language Ideally data that does not need to be updated frequently should be stored in React Context This approach ensures that data remains consistent throughout the application and minimizes the likelihood of data inconsistencies or conflicts React s Context API works great when the codebase is modular and split into components For this you can use the Locofy ai plugin to generate modular and highly extensible React components directly from your Figma amp Adobe XD design files You can use the auto layout feature on Figma to make your designs responsive on the Locofy ai plugin and even if your designs don t utilise auto layouts the plugin offers a Design Optimizer feature that uses AI to apply auto layouts to your design files Once your designs are responsive you can use the Auto Components feature to split your design elements into working React components making them easy to extend Hope you like it That s it ーthanks	2023-03-25 17:40:14
ニュース	BBC News - Home	Energy firms call for windfall tax to fall with prices	https://www.bbc.co.uk/news/business-65077495?at_medium=RSS&at_campaign=KARANGA	energy	2023-03-25 17:47:19
ニュース	BBC News - Home	Tottenham Hotspur 1-5 Arsenal: Gunners maintain title by thrashing Spurs	https://www.bbc.co.uk/sport/football/64997984?at_medium=RSS&at_campaign=KARANGA	london	2023-03-25 17:35:36