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PlanetPython
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Python Bytes: #433 Dev in the Arena
- git-flight-rules is a guide for programmers on using Git effectively with step-by-step procedures for common operations.
- Unravelling t-strings explains Python expressions, conversions, and format specs, closely resembling an example in PEP 750.
- neohtop offers blazing-fast system monitoring with real-time process tracking, modern UI, and advanced process management features.
- Pyrefly, a new type checker and IDE experience for Python by Facebook/Meta, focuses on performance, IDE integration, inference, and is open source.
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Dev
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282
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Understanding and Mitigating JavaScript Memory Bloat
- Memory management in JavaScript is crucial for performance and user experience, especially in complex applications with large datasets.
- JavaScript memory bloat refers to inefficient memory usage leading to performance degradation in web applications.
- JavaScript's evolution with ECMAScript standards introduced complexities in memory management due to the rise of SPAs and frameworks.
- Garbage collection mechanisms like Mark-and-Sweep and Reference Counting are crucial for reclaiming memory in JavaScript.
- Identification of memory bloat involves understanding closures, event listeners, and management of large objects.
- Memory profiling tools like Chrome DevTools are essential for analyzing memory usage and identifying retained objects.
- Mitigation strategies include limiting scope, managing event listeners, and utilizing object pooling for optimized memory usage.
- Advanced techniques like using immutable data structures and debouncing or throttling events can further optimize memory management.
- Real-world applications like Chromebook OS and Netflix utilize intricate memory management techniques to optimize performance.
- Common pitfalls in memory management include failing to dispose event listeners and retaining reference cycles.
- Developers should prioritize memory management alongside other concerns to ensure efficient and scalable web applications.
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Medium
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Deploying UniHTML on Kubernetes: A Simpler Way to Scale HTML Rendering
- UniHTML is a backend tool that simplifies dynamic HTML rendering using Go, focusing on speed and efficiency.
- Combining UniHTML with Kubernetes offers enhanced performance and reliability without requiring deep infrastructure knowledge.
- Deploying UniHTML on Kubernetes allows for seamless scaling, efficient resource utilization, and stable rendering even under heavy load.
- This integration streamlines workflow, with developers focusing on UniHTML logic and operations teams managing smooth application running on Kubernetes.
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Hackernoon
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Don't Mix Data Access Concerns With Essential Business Behavior
- Passing databases creates accidental coupling and breaks business encapsulation.
- Problems include tight coupling, mixed responsibilities, bijection violation, testability issues, business logic pollution, and violations of separation of concerns.
- Solutions recommended are to use dependency injection, avoid using the Repository Pattern, separate business logic, and design for decoupling.
- Refactorings and sample code are provided in the article to address the issue of mixing data access concerns with essential business behavior.
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Medium
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Let’s dive into three super useful JavaScript functions: map(), filter(), and reduce().
- map() transforms each element of an array by applying a function and returns a new array with the transformed values.
- filter() selects elements from an array based on a condition provided by a test function and returns a new array containing only the passing elements.
- reduce() blends all elements of an array into a single output using a reducer function that combines each element with an accumulator.
- map(), filter(), and reduce() are powerful higher-order functions in JavaScript that simplify array manipulation and make code cleaner and more readable.
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Dev
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Tutorial: Running Your C# Code Without a Project File
- The tutorial explains how to run C# code without a project file using the .NET 10 Preview SDK.
- This approach is helpful for quick tests, learning, and simple scripts without a full project structure.
- Using dotnet run file.cs, you can directly compile and run C# programs without a .csproj setup.
- You start by creating a C# source file named app.cs with basic code like printing to the console.
- The CLI implicitly creates a project definition based on the default dotnet new console template to compile and run the file.
- You can reference NuGet packages directly within the source file using app directives like #:package.
- Advanced options include specifying SDK, properties, and using directives for finer control.
- On Unix-like systems, you can make C# files executable like shell scripts using a shebang line.
- The file-based execution model in .NET 10 Preview is recommended for simplicity and quick tasks, not for complex applications.
- To transition to a full project structure, you can use dotnet project convert app.cs.
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Medium
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Lifetimes in Rust aren’t that hard
- Rust's lifetimes play a crucial role in memory management and preventing dangling references.
- Generic lifetime annotations ensure that return values do not outlive their corresponding arguments.
- Returning references to local variables can lead to dangling references if not handled correctly.
- In Rust, 'static lifetimes are used for string literals and data intentionally leaked to live for the entire program duration.
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Medium
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Federated Business Services: Escaping the Functional Monolith, One Event at a Time
- Functional monoliths in organizations, such as central billing teams, create bottlenecks and dependencies on other departments for tasks like invoicing.
- Federation in business services involves decentralizing ownership of processes like pricing, invoicing, and communication to enable autonomy and speed.
- Central teams shift from doing the work to providing tools and rules for other teams to execute tasks within boundaries in a federated model.
- Federated systems require clear ownership, well-defined events, and good observability to scale autonomy and reduce integration costs.
- Events serve as the backbone of federated business capabilities, ensuring communication and coordination among different teams.
- Contracts, clear ownership, and visibility are essential components for successful implementation of federated business capabilities.
- Federation promotes a cultural transformation in organizations by fostering trust, autonomy, and shared language among teams.
- The shift to federated business capabilities extends beyond invoicing to areas like pricing logic, communication triggers, document generation, and data ownership.
- Organizations that embrace federated models move faster, reduce coordination costs, and improve scalability and flexibility in their core business operations.
- Embracing federation in business services shifts the focus from control to empowerment, leading to more efficient, robust, and adaptable systems.
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Dev
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385
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Build a Real-Time News AI Agent Using LangChain — In Just a Few Steps!
- AI agents have emerged as powerful applications of large language models, capable of understanding natural language, reasoning, and completing tasks autonomously.
- The article explores building a sophisticated real-time news AI agent with capabilities like fetching current events, web searches, and engaging in conversations locally.
- AI agents differ from traditional chatbots by their autonomy, decision-making abilities, and access to a toolkit of specialized functions for problem-solving.
- The architectural deep dive reveals the use of LangChain for building the news agent, leveraging OpenAI's GPT models and specialized tools for various functionalities.
- The agent's toolkit includes features like web search using DuckDuckGo, news tools for fetching latest and location-specific news, calculator, and time tool.
- The implementation involves setting up Python environment, installing dependencies, and using API keys for tools like OpenAI, DuckDuckGo, and NewsAPI.
- The complete code workflow involves creating an agent, defining tools, setting up the agent prompt, processing user input, and launching the AI Agent dashboard.
- SingleStore integration is recommended for enhanced data persistence, real-time analytics, and efficient news data management to scale the news AI agent effectively.
- The repository provides guidance on integrating SingleStore for storing and retrieving information from a vector database, enhancing the agent's knowledge retrieval capabilities.
- The article showcases the power of combining large language models with practical tools, demonstrating how AI agents can provide real-time information while respecting user privacy and control.
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Dev
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282
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Fruit Memory Match Game – Boost Brainpower with Fun!
- The Fruit Memory Match Game is a powerful tool to improve memory, focus, and cognitive skills for all age groups.
- It is a digital or printable card game with bright fruit graphics, multiple difficulty levels, and timer tracking.
- Benefits include cognitive development, visual recognition, improved concentration, and it offers family fun and learning.
- The game features popular fruits like Apple, Banana, Grapes, and Strawberry, designed to be visually appealing and engaging.
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Dev
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🎥Unlock Google Veo 3 Today: 3 Insider Methods You Can't Afford to Miss
- Google Veo 3 is at the forefront of the AI revolution, offering new possibilities in video production without the need for specialized training or expensive equipment.
- Veo 3's cinematic quality, realistic textures, natural motion flow, and integrated speech generation capabilities set it apart as a game-changer in AI-generated video technology.
- Industries like Klarna have witnessed a significant reduction in production time and cost savings through the implementation of Veo technology for video creation.
- Three insider methods are shared for accessing Google Veo 3: using Google Flow for intuitive interaction, leveraging Google Cloud's $300 credit, and accessing Veo 3 through the Developer's Pathway.
- Google Veo 3 offers an educational advantage with discounted or free access for verified students, making the technology accessible even on a tight budget.
- Crafting detailed prompts with Veo 3 is essential for exceptional results, impacting the quality of AI-generated videos, including specifying subjects, contexts, directions, and emotional elements.
- Veo technology represents a transformation in visual content creation, empowering creators of all levels to realize their visions without traditional barriers.
- The democratization of video production through Veo 3 signifies a significant shift towards easier access to advanced creative tools, offering multiple pathways for creators to explore and adapt to the evolving digital landscape.
- The AI video revolution has arrived with Google Veo 3 leading the way, presenting opportunities for creators to innovate and thrive in the increasingly visual digital world.
- Adapting early to AI-driven creative workflows will provide significant advantages for creators, assisting them in harnessing transformative technologies like Google Veo 3 effectively.
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Medium
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358
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Best practices for using digital signs kiosk during sales and promos
- Digital signage kiosks are essential for in-store marketing strategies, especially during sales and promotional events.
- Best practices include using short and direct messages with bold fonts, compelling calls to action, and visually appealing content.
- Placement strategies suggest putting signage at eye level in high-traffic areas, using time-based scheduling, and ensuring real-time content updates for relevancy.
- To maximize ROI, align digital signage with broader marketing goals, integrate interactive features for data collection, and prioritize staff training and technical maintenance.
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Medium
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The Unusual Power of TypeScript: Embracing Functional Programming for Robust Applications
- Functional programming in TypeScript involves using techniques like tagged unions, pattern matching, and Algebraic Data Types (ADTs) to write clear and reliable code.
- With TypeScript's support for union types and structural typing, developers can model entire states and flows of applications efficiently.
- Functional programming patterns like discriminated unions and pattern matching offer centralized ways to define states, ensuring all cases are handled for safety and maintainability.
- Tagged unions combined with type narrowing in TypeScript enable intelligent inference and the ability to simulate match expressions for robust code.
- Algebraic Data Types (ADTs) in TypeScript allow precise and exhaustive description of complex data structures, ensuring correctness and scalability.
- Using ADTs for actions, developers can guarantee the structure of each action, leading to increased safety and correctness in processing actions.
- Immutable design principles in functional programming, encouraged by tagged unions and ADTs, help in clearer state transitions and cleaner, safer code.
- Functional programming patterns like tagged unions and ADTs aid in explicit domain modeling, enforcing valid states and preventing unrealistic combinations.
- These patterns lead to faster development, easier testing, and more confident refactoring by providing isolated, immutable states for testing scenarios.
- Functional programming patterns in TypeScript offer advantages in managing complex app states and actions, reducing complexity and improving stability.
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Damienbod
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Revisiting using a Content Security Policy (CSP) nonce in Blazor
- Implementing a strong Content Security Policy (CSP) in web applications using Blazor and ASP.NET Core is crucial for security.
- CSP nonce or hashes should be used to enhance security, with nonce being the recommended choice.
- Blazor offers various application types and render modes, with only certain types supporting CSP nonce.
- The NetEscapades.AspNetCore.SecurityHeaders Nuget package can be utilized to implement security headers, including CSP nonce, in ASP.NET Core applications.
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Javacodegeeks
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259
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Using Signals in Angular 17: Goodbye NgRx for Simple State?
- Angular 17 introduces Signals, a new reactive primitive for managing local component state, offering a cleaner and more intuitive approach compared to using NgRx and RxJS.
- Signals provide a simpler API with lower complexity, minimal boilerplate, and automatic change detection, making them ideal for managing local/component state and UI-related functionalities.
- Examples provided demonstrate how Signals can be used in scenarios like managing a counter, toggling visibility, and deriving state, showcasing their advantage in readability and reactivity.
- To decide between Signals, RxJS, and NgRx, consider using Signals for local state, UI flags, and deriving state, while reserving RxJS/NgRx for asynchronous data, global state, side effects, and advanced features.
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