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Programming News
Medium
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Troubleshooting Virtual Environment and pip Install Issues in PowerShell with Visual Studio Code
- Troubleshooting virtual environment and pip install issues in PowerShell with Visual Studio Code.
- Occasionally, when installing a package, it may not be found by Visual Studio Code even after a successful installation.
- This issue is usually caused by the Python interpreter being used to run the code and the interpreter being used by pip during installation.
- Although the virtual environment may be active, pip might not be pointing to the correct interpreter.
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Dev
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58
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How to Build a Live Streaming App using ZEGOCLOUD in React.js
- Live streaming has exploded in popularity — from gaming and concerts to webinars and social media.
- In this guide, you'll learn how to build a live streaming app using ZEGOCLOUD's SDK in React.js.
- The tutorial covers setting up a ZEGOCLOUD account, creating a React project, implementing live streaming features, and testing the app.
- The tutorial also suggests possible next steps for customization and improvement, such as adding custom UI, recording, monetization, and moderation.
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Medium
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299
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Send Automated WhatsApp Messages with n8n and Wassenger
- Wassenger is a versatile WhatsApp Team Chat and API solution for business messaging to automate anything on WhatsApp.
- You have two options to install Wassenger within n8n.
- To get started, install the package in your n8n root directory. After installation, restart your n8n instance.
- To receive events from Wassenger or other external services, you’ll need to configure n8n with a publicly accessible URL. By default, n8n runs locally and generates webhook URLs using localhost, which external services cannot reach.
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Dev
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89
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Enhancing Graphics Performance with OffscreenCanvas and D3.js
- Rendering complex graphics efficiently in web applications has always been a challenge due to JavaScript's single-threaded nature.
- The introduction of OffscreenCanvas provides a solution by enabling rendering operations in Web Workers, significantly improving performance for graphics-intensive applications.
- This article explores how OffscreenCanvas works, how to use it effectively with D3.js, and its real-world application in an analytics website with multiple dashboards.
- OffscreenCanvas, combined with D3.js, is a powerful tool for building high-performance analytics dashboards, significantly enhancing performance and improving user experiences.
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Dev
4w
156
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🚀 React Devs, Level Up Your Skills! 💡
- Keep Components Reusable – Break down UI into small, manageable components. DRY (Don’t Repeat Yourself) saves time!
- Use Error Boundaries – Catch UI crashes using to improve user experience.
- Code Splitting & Lazy Loading – Use React.lazy() & Suspense to improve performance by loading components only when needed.
- Strict Mode for Better Debugging – Wrap your app in to detect potential issues in development.
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Dev
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227
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🚀 Mastering React: Tips for Devs! 🎯
- Use Functional Components & Hooks for easier state management.
- Optimize Performance with React.memo, useCallback, and useMemo.
- Choose the appropriate state management tools based on app size: Context API, Redux/Zustand/Recoil.
- Leverage Next.js for Server-Side Rendering (SSR) & Static Site Generation (SSG).
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Medium
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308
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Artificial Intelligence Use in Smartphones Grows 250% in the Last Five Months
- According to the Samsung report, there are 200 million Galaxy smartphones in Latin America that integrate artificial intelligence.
- AI features have been used 1.157 billion times in the region.
- AI tools are available on mid-range smartphones like the Galaxy A56.
- Notable AI features include Circle to Search, Song Search, Best Face, Smart Object Eraser, and Filters.
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Medium
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67
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Why Computer Science Students Should Learn AI Agent Development — Key Benefits Explained!
- AI brings many advantages to creating active agents that work on behalf of the user.
- AI agents are able to think, learn, reason, make decisions, and communicate like humans.
- AI agents are mainly based on Large Language Models (LLM), which work as the brain of the agent.
- Positions in AI development, such as AI product managers, AI development engineers, AI algorithm engineers, AI trainers, and large model development engineers, offer great opportunities in the future.
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Lostmoa
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Method dispatch mechanisms in Swift: static and dynamic dispatch
- Method dispatch in Swift involves dynamic and static dispatch mechanisms, each with its own implications for performance and flexibility.
- Dynamic dispatch is resolved at runtime based on the object's actual type, utilizing mechanisms like virtual tables for classes and witness tables for protocols.
- Static dispatch, on the other hand, is determined at compile time based on the declared type of the variable, avoiding runtime overhead and enabling optimizations like inlining.
- Dynamic dispatch is used for overridable class methods, protocol requirements, and interactions with Objective-C or virtual C++ methods, offering flexibility for dynamic behavior.
- Static dispatch, on the contrary, is applied to value types, final classes, private methods, and non-requirement methods in protocol extensions to ensure efficient execution without runtime lookups.
- Dynamic dispatch examples include overridable class methods where different types respond uniquely, protocol requirements ensuring polymorphism, and calls to Objective-C or virtual C++ methods.
- Static dispatch scenarios involve methods on value types like structs, final classes preventing overriding, private class declarations ensuring no subclassing, and protocol extension methods resolved statically.
- To optimize performance, marking classes as final, using private or fileprivate declarations, and minimizing unnecessary dynamic dispatch through careful protocol design are recommended.
- Enabling Whole Module Optimization (WMO) and avoiding excessive Objective-C interoperability can further enhance performance by reducing unnecessary indirection.
- Profiling with Instruments can identify dispatch-related overhead, guiding developers to focus on areas where optimization efforts will have the most significant impact.
- For advanced Swift developers looking to enhance their skills, resources like the book Swift Gems can provide valuable insights into optimizing code for improved clarity, speed, and maintainability.
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Dev
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116
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downloadInBrowser function in Refine source code.
- The function downloadInBrowser in the Refine source code is reviewed.
- The function accepts three parameters: filename, content, and type.
- It creates a blob with the content and type, and then creates a download link for the file.
- After the file is downloaded, the function removes the link and the blob from memory.
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Medium
4w
321
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Learning A New Programming Language
- The question at hand is whether it is better to learn a new programming language through books or online tutorials.
- The author, who comes from an older generation, preferred learning through books.
- Reading an entire book provided a thorough understanding and cleared the fundamentals of the topic.
- Online tutorials, on the other hand, offer rudimentary knowledge and are suitable for organizations that lack proper training programs.
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Medium
4w
375
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Middleware vs. Service Layer: Understanding the Key Differences in Node.js
- Middleware in Express.js is a function that executes before the request reaches the controller or route handler.
- The authMiddleware ensures only authenticated users can access /profile.
- The service layer contains the business logic of the application and acts as an abstraction layer between the controller and the database.
- By properly structuring the code, a maintainable, scalable, and testable application can be created.
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Medium
4w
102
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Pharo in a Nutshell: A Dummy’s Guide to Smalltalk Programming
- Alan Kay, known for coining the term 'Object Oriented Programming,' envisioned encapsulated mini-computers communicating via message passing inspired by biological systems.
- Smalltalk was developed by Alan Kay, Dan Ingalls, Adele Goldberg, and others at Xerox PARC, emphasizing messaging over objects themselves in OOP.
- Object-oriented programming essentials include message passing, encapsulation, and dynamic binding, with a focus on dynamic behavior rather than class hierarchies.
- Smalltalk evolved from Smalltalk-71 to Smalltalk-80, with the latter becoming widely known for its minimal syntax and focus on message passing.
- In Smalltalk, everything is an object, including control structures implemented as methods, emphasizing pure object-oriented principles.
- Objects in Smalltalk can hold state, receive messages, and send messages, with message passing being the core mechanism for computation.
- Pharo is a modern Smalltalk implementation, emphasizing the importance of understanding message passing for effective Smalltalk programming.
- Pharo provides a user-friendly interface with components like the Playground, Transcript, and Class Browser for writing, displaying output, and managing classes respectively.
- Smalltalk's message passing philosophy in Pharo differs from popular OOP languages, reflecting its pure object-oriented nature and adherence to Alan Kay's vision.
- This summary provides a foundational understanding of Smalltalk, message passing, and the unique approach to programming in Pharo.
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Medium
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437
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I tested out all of the best language models for frontend development. One model stood out.
- DeepSeek V3 and Google's Gemini 2.5 Pro outperformed other language models in benchmark tests for frontend development.
- The article explores how these models perform on a frontend development task related to building an algorithmic trading platform feature called 'Deep Dives'.
- Language models like Grok 3, Gemini 2.5 Pro, DeepSeek V3, and Claude 3.7 Sonnet were tested for generating a landing page for the feature.
- Grok 3 produced basic output, while Gemini 2.5 Pro excelled, ultimately outperformed by DeepSeek V3 and Claude 3.7 Sonnet.
- Claude 3.7 Sonnet stood out by delivering sophisticated frontend landing pages with new components and SEO-optimized content.
- All models produced clean, readable code, but differences in visual elements and code quality were notable.
- Gemini 2.5 Pro and Claude 3.7 Sonnet utilized templates effectively, while Claude excelled in producing high-quality, maintainable code.
- While Claude 3.7 Sonnet was top in code quality, factors like manual cleanup, cost-performance trade-offs, and model capabilities influenced the choice.
- The comparison shows AI's advancement in handling complex frontend tasks, with Claude 3.7 Sonnet emerging as the preferred model for quality and design aesthetics.
- Ultimately, the choice of a language model depends on priorities such as quality, speed, and cost in frontend development workflow.
- The article highlights the progress in AI's frontend development capabilities, emphasizing Claude 3.7 Sonnet's superior output balanced with human oversight needs.
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Medium
4w
303
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Uganda: A Nation with a Mad Man’s Body
- Uganda's infrastructure is decaying, hindering progress akin to a mad man struggling to walk.
- The economy in Uganda is suffering from heavy taxation, corruption, and poor policies.
- Maternal healthcare is inadequate, leading to high maternal mortality rates.
- Ugandan workforce faces exploitation and limited rewards.
- Education system in Uganda is costly and ineffective, leaving many without skills.
- Governance in Uganda suppresses dissent and fails to deliver justice.
- Tribalism in leadership exacerbates inequality, further dividing the nation.
- Uganda's leadership manipulates and pits its own people and institutions against each other.
- Uganda's youth are seen as the key to awakening a subconscious power for change.
- The article emphasizes the importance of unity and action to overcome the challenges in Uganda.
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