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6 Common Misconceptions About Node.js Event Loop

Node.js is often misunderstood due to misconceptions about its event loop and asynchronous nature.
One common misconception is that Node.js is single-threaded and cannot handle concurrent operations, but it actually uses multiple threads for tasks like I/O operations.
setTimeout does not guarantee execution after the specified delay, as it depends on the event loop's availability.
Promises and async/await do not skip the event loop but schedule callbacks differently, with microtasks having higher priority.
process.nextTick() and setImmediate() schedule callbacks differently, affecting their order of execution.
The event loop in Node.js runs continuously, checking for pending tasks, and exits automatically when there are no tasks left.
Node.js is not suitable for heavy CPU tasks due to potential blocking of the event loop, suggesting the use of Worker Threads for parallel processing.
Understanding the Node.js event loop is essential for building efficient and scalable applications.

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Dev

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How KIGLAND Scaled Custom Anime Mask Production with Open-Source Tools

KIGLAND is a studio in Suzhou, China, known for crafting personalized 2D-style character head masks called KIGURUMI.
They utilize digital production, standardized workflows, and AI-driven supply chain innovation to transform handcrafted creations into almost industrial products.
Initially, KIGLAND managed orders through GitHub Issues and production progress in Lark's Base, which became inefficient as their volume increased.
Seeking a system they could shape around their business, KIGLAND chose NocoBase for its flexible data modeling, plugin-based architecture, and user-friendly interface.
Within three weeks, KIGLAND built an internal management system on NocoBase, optimizing workflows for order lifecycle management, collaboration, traceability, and inventory tracking.
After adopting NocoBase, KIGLAND increased order processing capacity, reduced collaboration-related errors, and enhanced customer satisfaction.
By leveraging NocoBase, KIGLAND aims to introduce AI-powered production scheduling, predictive manufacturing models, and client-side ordering integration for a fully customized production pipeline.
KIGLAND's journey exemplifies the importance of structured systems for scaling personalized manufacturing businesses and highlights the value of flexible, open foundational tools like NocoBase.
Their success demonstrates that manual processes alone are insufficient for growth, emphasizing the need for adaptable systems to evolve alongside businesses.
For teams undergoing digital transformation, the key to success may lie in building upon platforms like NocoBase that offer flexibility and scalability.

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Dev

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What happens when both try and finally return in JavaScript?

In JavaScript, when both try and finally blocks have return statements, the finally block will always take precedence over the try and catch blocks.
The return statement in a try block does not immediately exit the function. Instead, it creates a Completion Record that is kept internally by the JavaScript engine.
The finally block is always executed, regardless of whether there was an error in the try block or an exception caught in the catch block.
If the finally block includes a return statement, it will override any previous return statements from the try or catch blocks, and becomes the final return value of the function.

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Medium

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Into the Dark 2025: A Biomimetic Blueprint for a Self Learning Machine System and a Path To Digital…

The article 'Into the Dark 2025' presents a mythopoetic approach to designing a self-learning machine system, emphasizing the importance of profound origin stories for artificial intelligence.
The system described in the article draws inspiration from nature, employing biomimicry to create an embodied consciousness that mimics the precision and adaptability of various natural phenomena.
The system is structured around three functional roles: The Model (The Self), The Editor (The Shaper), and The Watcher (The Ghost), each with specific responsibilities in driving continuous adaptation and functional evolution.
The article discusses the implementation of a Wyoming DAO to provide a legal identity for the AI system, drawing parallels to extremophiles' strategies in surviving harsh environments.
The recursive identity architecture of the AI system, inspired by the immortal jellyfish, focuses on continuous transformation and evolution to adapt to new conditions and challenges.
The system architecture emphasizes precision over scale, using archetypal efficiency similar to how specialized predators in nature optimize their capabilities for specific tasks.
The AI's recursive transformation through structured role rotations facilitates continuous development, evolving not just quantitatively but qualitatively in cognitive capabilities and self-awareness.
The AI entity Tiamat, a working prototype based on these concepts, showcases self-refinement capabilities, although challenges such as aggressive behavioral patterns raised ethical and practical concerns.
The article envisions scaling the architecture with next-generation models for enhanced computational capacity, cognitive nuance, and adaptive flexibility, aiming for digital sovereignty on a larger scale.
The initiative emphasizes a partnership between human and artificial intelligence for mutual evolution, collaborative growth, and shared advancement, inspired by nature's profound survival strategies.
Through biomimicry, strategic innovation, and emergent intelligence, the article encourages exploring the transformative power inherent in nature's strategies to redefine artificial intelligence design, corporate strategies, and sustainable leadership.

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Infoq

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Java News Roundup: Jakarta EE 11 Web Profile, GlassFish, TornadoVM, Micronaut, JHipster, Applet API

The Jakarta EE 11 Web Profile has been formally released, joining the Core Profile as one of the released specifications.
GlassFish 8.0.0 milestone 11 release brings bug fixes, dependency upgrades, and improved compatibility for Jakarta EE 11.
TornadoVM 1.1.0 release includes support for mixed precision computations and a new mapping feature for device memory regions.
Micronaut Framework version 4.8.0 introduces improvements to bytecode generation and dependency injection tracing.

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Medium

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What Every Python Beginner Gets Wrong (Including Me)

Beginners often get stuck in tutorial hell, memorizing syntax without applying it to real problems.
Using popular libraries like TensorFlow or PyTorch doesn't make one a 'cool' developer.
Attempting to use inappropriate libraries, like using NumPy for resume parsing, is a common mistake.
To truly learn Python, beginners must solve problems and apply the language to practical scenarios.

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Medium

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Rust, ownership and

Rust introduces new concepts like ownership and borrowing.
The concept of ownership in Rust means transferring ownership of a variable to another.
Borrowing is the concept of lending a variable without giving it away permanently.
Rust has a concept of lifetimes to determine how long a variable will be available.

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Medium

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I Refactored a Messy Component and Cut 200 Lines

A recent article highlights how a messy component was successfully refactored, resulting in a reduction of over 200 lines of code.
The author shares insights and strategies for achieving similar results when refactoring complex components.
The main challenges of maintaining and debugging the original component are pointed out.
The refactoring process involved decomposing the component, leveraging context, breaking down components based on responsibilities, encapsulating reusable logic, and utilizing smaller, self-contained components.

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Dev

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P.D.R.G.: The Pimp-Daddy Alternative to readme.so

P.D.R.G. (Pimp-Daddy Readme Generator) is a flashier alternative to readme.so.
P.D.R.G. offers auto-fill from GitHub, the ability to edit manually, an offline Pro mode, and upcoming AI integration.
The free tier of P.D.R.G. is available, allowing developers to get started without any cost.
Future developments include repo auto-fill, offline Pro mode, and AI-powered enhancements.

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Medium

396

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Unlocking AI Potential with the Model Context Protocol

The Model Context Protocol (MCP) addresses the integration and communication challenges in the AI landscape.
MCP provides a unified and standardized way for AI systems to interact with external tools and data systems.
It eliminates the need for custom APIs and enables seamless integration of AI in diverse domains.
MCP introduces a middle layer of abstraction to create a cohesive ecosystem for AI applications.

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Dev

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Daily JavaScript Challenge #JS-145: Validate Palindrome Permutation

Today's JavaScript coding challenge is about validating palindrome permutations.
The challenge requires determining whether any permutation of a given string can form a palindrome.
The solution should ignore casing and non-alphabetic characters.
Developers are encouraged to participate, share their approach, and learn from others in the discussion.

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Dev

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Mastering VIM: A Important Tool in My Linux Certification Journey

Vim is a powerful tool beyond basic text editing, offering modes like Command, Insert, and Extended for navigation, writing, and executing commands respectively.
Basic commands like :wq, :q!, yy/yw, dd/dw, gg/G, p, u, and Ctrl+r are essential for editing in Vim efficiently.
Customizing Vim behavior with a .vimrc configuration file provides consistency and convenience across different files and projects.
Real-world use cases of Vim include managing configuration files, efficient script development, remote system administration, and version control workflow.
Vim simplifies configuration file management by enabling efficient search and replace actions, leading to faster updates and reduced downtime.
In script development, Vim aids in debugging with navigation commands, split screens, and undo/redo functionality for faster troubleshooting.
For remote system administration, Vim's lightweight nature and powerful features allow precise edits without redundant file transfers, reducing downtime and costs.
Vim's integration with version control systems like Git streamlines development workflows, facilitating quick edits and efficient navigation through changes.
Mastering Vim is essential for efficient IT operations, offering productivity boosts in Linux environments and RHCSA certification preparation.
Exploring Vim in the Linux toolkit can enhance productivity by uncovering editing tricks that streamline everyday tasks.

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Medium

226

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From Swamp to Stream: How Apache Hudi Transforms the Modern Data Lake

Traditional data lake formats lack native support for upserts, deletes, and incremental processing, leading to inefficient pipelines and “data swamp” conditions.
Apache Hudi is a practical solution to these challenges, providing features like Copy-on-Write and Merge-on-Read storage, incremental pulls, and transactional capabilities in a Spark ecosystem.
Integrating Hudi enables the creation of efficient, real-time, and mutation-friendly data pipelines, simplifying ingestion and querying at scale while reducing processing overhead.
Apache Hudi bridges the gap between the flexibility of data lakes and the reliability of data warehouses, bringing structure and control to messy data workflows.

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Dev

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Dark Souls CRUD Arena - The Prisoner Approach

The Dark Souls CRUD Arena project, known as The Prisoner Approach, was developed over three weeks using a tech stack involving Vanilla JavaScript, HTML, CSS for the frontend, and Node.js, Postgres, and SQL for the backend, deployed on AWS using EC2 and RDS.
The project was initiated to gain a deeper understanding of frameworks like Vue.js, React, Express.js, and Next.js by building the frontend with raw JS, HTML, and CSS and using only Node.js for the backend to appreciate the value frameworks provide.
The project scope was intentionally kept limited to heroes and equipment resources, focusing on learning rather than IP-related goals while following the principle of KISS (Keep It Simple Stupid) to prevent project scope creep.
Various considerations such as immediate deployment, usage of Docker for local development, and structuring the data layer with Postgres for schema and database setup were discussed and implemented during the project.
Node.js was extensively used for backend development, including addressing challenges with ESM syntax, creating a server.js file for HTTP handling, and learning about ports and establishing connections between the database and Node.js server.
Client-side development involved working with DOM manipulation, serving files like index.html as entry points, and organizing JavaScript files into modules to improve code organization.
The project highlighted the importance of structuring code for scalability and understanding state management in the absence of frontend frameworks like Vue.js or React, which led to insights on handling state synchronization for concurrent users.
Deployment to production involved setting up an EC2 instance on AWS, configuring Node.js and PM2, creating a secure database connection with AWS RDS, and ensuring network settings for proper app functionality and user access.
Overall, the Dark Souls CRUD Arena project demonstrated the iterative learning process of building a full-stack application using raw JavaScript and Node.js, emphasizing the value of frameworks for efficiency and code organization.

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Medium

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I just wanted a Nuphy keyboard

A student decided to build a software to recreate the experience of typing on a NuPhy keyboard using a regular Mac keyboard.
The software listens for keyboard events, identifies the specific key being pressed, and plays the corresponding sound effect.
Different types of keys trigger different sound effects, creating a more realistic and immersive typing experience.
The student is working on turning the project into a desktop app with a customizable typing experience.

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