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From 200ms to 100ms: Our Go Optimization Journey That Saved Millions

In a crisis where their main API was crawling at 200ms, the team optimized their Go application's compiler optimizations to improve performance significantly.
Issues like string concatenation inefficiencies and interface boxing were identified as bottlenecks.
By optimizing their build process, string handling, interface usage, and JSON responses, they achieved remarkable performance gains.
Implementing sync.Pool for object pools and smarter slice allocations further reduced overhead and improved efficiency.
With compiler directives, build tags, and other optimizations, they saw an average response time improvement from 200ms to 95ms, along with reduced memory and CPU usage.
Lessons learned included the impact of small changes, guiding the compiler for better memory management, the magic of PGO, and the importance of build flags.
The article highlights the significance of updating to Go 1.24, fixing build processes, profiling, optimizing string handling, using object pools, implementing build tags, and compounding optimizations for substantial performance gains.
Optimizations in the Go application led to considerable speed improvements across different APIs without altering business logic.
The article emphasizes the importance of understanding and leveraging Go's compiler optimizations and tooling for enhanced performance.
By focusing on compiler flags and code patterns, the team achieved a 50% performance improvement in their Go application.
Implementing these optimization strategies can lead to cost savings on infrastructure and increased user satisfaction.

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Dev

242

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The Heartbeat of Modern Web Applications（1750268860379400）

Modern web applications demand real-time interactions, revolutionizing user experiences.
Real-time features like instant messaging, collaborative editing, and live streaming require powerful backend technologies.
Asynchronous programming and high-performance frameworks are crucial for achieving real-time interactions.
A Rust-based web backend framework excels in asynchronous processing and optimization for real-time applications.
It leverages non-blocking I/O, lightweight task scheduling, and elegant error handling for high performance.
The framework supports native WebSocket and SSE, efficient message broadcasting, and low-latency request processing.
It offers flexible protocol support, robust state management, and advanced concurrency control.
A practical case study of building an online collaborative whiteboard showcases the framework's capabilities.
Compared to traditional and popular frameworks, the Rust-based framework shines in real-time scenarios.
Choosing the right backend framework is crucial for enhancing the 'heartbeat' of modern web applications.

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Medium

396

My Top 5 Pinterest Decor Finds This Week (I’m Obsessed )

Pinterest decor finds include squishy chairs, cozy throws, pampas grass, and macramé wall hangings for a soft and calming vibe.
Adding fairy lights or warm LED strips can create a magical atmosphere in a room, especially around mirrors or shelves.
A 3-tier cart filled with trailing plants offers mobility and decorative charm, allowing you to move your mini jungle to follow the sunlight.
Mixing different frames, textures, and adding unique decorative items like hats or baskets can create an eclectic and visually appealing wall display.
Leaning a large mirror against the wall can instantly elevate the space, making it appear larger and more upscale.
The decor ideas are cute, easy to implement, and offer maximum style with minimal effort, providing a chic and put-together look.

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Dev

170

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My Node.js - First Interview Experience & Important Concepts!

First Node.js interview experience highlighted the importance of understanding core concepts in backend development.
Topics covered included function declaration versus expression, setTimeout() function, selecting DOM elements, async/await, callbacks, and Node.js basics.
Node.js is a runtime environment for running JavaScript outside the browser, utilizing Google's V8 Engine for speed.
Node.js is single-threaded due to its use of Event Loop and Non-blocking I/O.
Cannot access DOM in Node.js as it runs on the server, not in the browser.
Example of creating a simple HTTP server in Node.js illustrated.
Distinction between synchronous and asynchronous functions was explained.
Common HTTP methods like GET, POST, PUT, DELETE were mentioned.
Explanation provided on 'this' keyword, undefined vs null, and == vs === comparisons in JavaScript.
Understanding truthy and falsy values and global versus local scope were part of the discussion.
The preference between startup and big companies was shared as per personal goals and preferences.
Key takeaway emphasized the importance of strong JavaScript knowledge as the foundation for learning Node.js.
Encouragement to practice daily for continuous learning and growth.

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Medium

174

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How I Tricked My Brain to Be Addicted to Coding

The author shares their journey of transitioning from a video game addict to being addicted to coding.
The author learned 9 programming languages, built over 40 coding projects, solved over 1500 LeetCode problems, and cracked interviews at big tech companies.
They highlight that they initially struggled with being addicted to video games and social media.
The article discusses 5 psychological hacks that helped the author develop a love for coding.
The author aims to help readers rewire their brains to enjoy coding through these psychological techniques.
The addictive nature of activities like video games is linked to dopamine production in the brain.

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Medium

140

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This Flutter Method Eliminated 200+ Lines of My Scrolling Code

Flutter developers often struggle with complex scroll logic, spending time on scroll positions and ScrollController.
Scrollable.ensureVisible() method simplifies scroll tasks by requiring the BuildContext of the widget to make visible.
Using this method can save developers from reinventing the wheel with unnecessary code.
Implementing ensureVisible() can increase code elegance and simplify scroll-to-section features.
Practical implementation example includes a product list with category navigation.
Adding a delay for dynamically loaded content ensures widgets are fully rendered before scrolling.
Combining ensureVisible() with animation controllers can enhance complex animations.
Different alignment values can be used based on screen size for optimal results.
GlobalKeys should be assigned to target widgets to avoid scrolling issues.
It's important to create GlobalKeys only for widgets that actually need to be scrolled to.
Scrollable.ensureVisible() provides clean, efficient programmatic scrolling without manual calculations.
Mastering ensureVisible() involves using GlobalKeys effectively, handling timing issues, and combining it with other Flutter features.
The method covers a wide range of use cases from simple scroll to top functionality to complex navigation systems.
Implementing ensureVisible() patterns can lead to smoother user experiences with predictable scrolling.
Developers are encouraged to share their experiences with ensureVisible() implementation and follow for more Flutter tips.

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Medium

114

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How to Reverse an Array Like a Developer

To reverse an array in-place without using built-in methods, use a two-pointer approach.
The process involves shrinking the window and reversing step by step.
This logic mirrors the process of comparing the first and last characters of a word to check for palindromes.
A challenge example provided is reversing 'Sham' to 'mahs.'
Engaging in such challenges can help in developing problem-solving skills.

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The Pragmatic Engineer

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The present, past and future of GitHub

GitHub recently celebrated its 17th anniversary, discussing its evolution, remote-first operating model, and integration of AI.
The CEO Thomas Dohmke shares insights on GitHub's architecture, remote work culture, and AI implementations like Copilot.
GitHub's architecture transitioned beyond its original Rails monolith, emphasizing a remote-first work environment.
Key topics include GitHub's security practices, hiring more junior engineers, and early product-market fit strategies.
The acquisition by Microsoft, launch of Copilot reshaping software development, and views on AI agents as tools are discussed.
The episode delves into the development of Copilot, starting with GPT-3 during the pandemic and its rapid adoption post-launch.
Additional topics include AI engineering, GitHub's intern program, pull request invention, and monetization changes post-acquisition.
Insights on GitHub's quiet period, open-sourcing Copilot extensions, and the relationship between AI agents and engineering roles are explored.
The episode references various tools, technologies, and industry leaders contributing to GitHub's journey.
Overall, the episode provides an in-depth look at GitHub's past, present, and future in the context of technology and AI advancements.

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Dev

332

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Function Declaration & Function Expression

Function declarations, or function statements, declare a function using the function keyword with a designated function name.
Function declarations do not require variable assignment and are standalone constructs that can be accessed before or after their definition.
Function declarations are hoisted and executed before other code in the program.
The function within a function declaration can be accessed both before and after its definition.
Example: function functionName() { // set of statements }
Function expressions are similar to function declarations but do not have a function name and can be stored in a variable assignment.
Function expressions are executed only when the program interpreter reaches the line of code where they are defined.
The function in a function expression can only be accessed after its definition.
Example: let variableName = function(param1, param2) { // set of statements }
console.log(variableName(args1, args2));
Reference link: https://www.geeksforgeeks.org/javascript/difference-between-function-declaration-and-function-expression-in-javascript/

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Dev

157

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Building a Tab Component with Tailwind CSS and React

Tabs are a common UI pattern for switching between different views or content areas.
Benefits of using tabs include organizing related content, enhancing usability, and avoiding unnecessary page reloads or routing.
Components for building a tab component using React and Tailwind CSS include Tabs, TabList, Tab, TabPanels, and TabPanel.
Tabs.js file contains the functional components for managing tabs and their corresponding functionalities.
Example usage demonstrates how to implement tabs in an application with different sections like Overview, Pricing, and Reviews.
Tailwind CSS styling tips include using specific utilities for animations and transitions to enhance the tab component's visual appeal.
Enhancements like adding keyboard support, animating tab panel content, lazy-loading content, and syncing tab state with URLs can further improve the tab component.
Building tab components with Tailwind CSS and React Context ensures modular, styled, and scalable code.
Reference provided for mastering Tailwind at scale to enhance the architecture, patterns, and performance of the tab component.
The approach suggested keeps UI logic clean, makes tabs accessible, and provides users with a seamless navigation experience.

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9 Likes

Medium

360

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Copilots, Not Autopilots: Inside Microsoft’s Human-in-the-Loop AI Strategy

Microsoft adopts a 'human-in-the-loop' approach to AI development and use, emphasizing people as central to the process.
The company focuses on 'AI-enabled' tools rather than 'AI-powered' systems, framing AI as assisting rather than replacing humans.
This philosophy permeates Microsoft's strategy from the boardroom to product branding and policy discussions.
Microsoft's Vice Chair and President, Brad Smith, highlighted the empowering potential of AI in a recent U.S. Congress testimony.
The company considers AI a tool to enhance human capabilities rather than a standalone force.
The human-in-the-loop ethos guides Microsoft's approach to AI development and implementation.

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Medium

276

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Juris.JS: The Documentation Site That Breaks Every Rule (And Every Performance Record)

Juris.JS is a documentation site that challenges traditional web development rules and excels in performance.
It operates without JSX, compilation, or transpilation, using pure JavaScript objects for UI structure and native browser performance.
The site emphasizes reactive functions and static values, avoiding manual subscriptions, effect dependencies, and stale closures.
It ensures fine-grained updates to DOM properties when state changes, without the overhead of a virtual DOM.
Components in Juris.JS only track relevant state paths that execute, leading to efficient updates.
The documentation runs real code examples, showcasing immediate component functionality and update capabilities.
Juris.JS supports component-based development and progressive enhancement, making legacy code reactive without rewrites.
The documentation site implements concepts like routing, state persistence, mobile navigation, and performance tracking in a real application for inspection.
It highlights separating business logic from presentation and promotes a composition pattern for flexible UI structures.
By questioning traditional web development assumptions, Juris.JS demonstrates a future where complexity is eliminated, not managed.

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Medium

"Nobody Cares. Work Harder."

Life rewards outcomes, not just efforts. Build so strong that they can't ignore you.
Talent is overrated; obsession and relentlessness are key to success.
Discipline means working regardless of how you feel. High performers push through regardless of their emotions.
Your story is significant only when you turn it into something real. Transform your struggles into fuel for success.
There's no savior; success requires your focus, consistency, and mindset.
Tips for getting ahead: Build without seeking approval, be consistently dedicated, eliminate soft habits, and nurture your mental strength.
Ultimately, work harder as nobody cares about excuses. Success comes from being serious, focused, and dedicated.

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4 Likes

Medium

213

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Why Java Continues to Be a Top Programming Language in 2025

Java remains a cornerstone of software development in 2025, evolving to stay relevant.
New Java versions introduce features enhancing productivity and application performance.
Recent versions like Java 21 and 23 added virtual threads, simplified main classes, and more.
Java is ideal for scalable applications across industries, especially in finance and healthcare.
Learning Java first facilitates transitioning to other modern JVM languages like Kotlin.
Java skills are in demand for professionals at all experience levels.
Java's community support aids learning and career growth for developers.
Java's age-resistant value and long-term relevance make it a strong career foundation.
Consistent practice and building real-world projects are crucial for Java developers.
A program offers a job-focused path with mentorship and real projects for aspiring Java developers.
Strong fundamentals like Java create lasting careers amidst changing tech trends.

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Javacodegeeks

421

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Gatling vs JMeter: Choosing the Right Performance Testing Tool

Performance testing tools Gatling and JMeter are compared for choosing the right tool based on specific needs.
Key factors compared include architecture, resource usage, maximum users, and reporting capabilities.
Gatling is known for high-scale testing, developer-friendliness, CI/CD integration, and better reporting.
JMeter is recommended for GUI-based testing, broad protocol support, legacy systems, and extensive plugin ecosystem.
Real-world usage examples of load testing and API performance testing are provided for both tools.
Gatling excels in running on a single machine, using less memory, and generating reports automatically.
Conclusion suggests using both tools for different purposes in an organization based on specific requirements.
Consider JMeter for general-purpose testing and Gatling for high-performance web application testing.
Both tools offer robust performance testing capabilities at lower costs compared to commercial tools.
The final recommendation is to leverage the strengths of each tool in different testing scenarios.

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