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Medium
1w
229
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Distributed Web Crawling Guide: System & Architecture
- Web crawling extracts data from websites, distributed crawling scales processes across multiple machines.
- Using Celery and Redis for a distributed web crawler enhances efficiency in large-scale scraping.
- Tasks are divided among workers, URLs are tracked in Redis, and parsers can be customized.
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13 Likes
Medium
1w
101
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The Birthday Paradox: Why 23 People Are All You Need for a 50% Chance of Shared Celebration
- In a group of 23 people, there is a 50% chance of at least two people sharing the same birthday.
- The Birthday Paradox arises from comparing every possible pair of people against all 365 potential dates, leading to an explosion in the number of comparisons.
- This paradox has significant implications in computer science and cryptography, setting limits on collision probabilities for hash functions and aiding in testing the quality of random number generators.
- Understanding the principles behind the Birthday Paradox showcases the limitations of human intuition in probability and highlights the importance of precise mathematical analysis in various fields.
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Python Blogs
1w
144
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What are the best practices for writing meta descriptions in an e-store?
- Meta descriptions act like signs in a store, providing a brief overview of e-store pages for both people and search engines.
- Best practices for writing effective meta descriptions include keeping them concise, using power words to grab attention, incorporating target keywords, speaking directly to the user, adding a call-to-action, ensuring uniqueness for each description, and accurately reflecting the page content.
- Additional tips for crafting pro-level meta descriptions include avoiding jargon, highlighting benefits, and considering mobile users by keeping descriptions short.
- Writing meta descriptions for an e-store can be enjoyable and impactful, serving as mini-ads that entice users to click and explore further.
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8 Likes
Dev
1w
293
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🚀 Master VS Code on Mac: The Ultimate Keyboard Shortcuts Guide for Next.js & Python Developers
- Master VS Code on Mac with essential keyboard shortcuts for Next.js & Python developers.
- Learn basic text editing, advanced coding techniques, tab management, and debugging shortcuts.
- Maximize efficiency and productivity by customizing shortcuts and practicing with real projects.
- Discover game-changing shortcuts for navigating code, debugging, and staying organized on macOS.
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Dev
1w
288
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Import on Interaction
- Import on Interaction is a performance pattern that allows deferred loading of resources over the network based on user interaction.
- It involves using React.lazy, Suspense, Dynamic Import, and facade pattern to load resources only when needed instead of loading them immediately on page load.
- Examples include loading 3rd party widgets, authentication SDKs, infrequently used features like scroll-to-top animations or export libraries, analytics, and tabbed interfaces on user interaction or click events.
- Facades can be used for deferring loading of elements like Youtube video embeds and Google login SDK until the user interacts with them to enhance performance.
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Javacodegeeks
1w
199
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Build REST/GraphQL APIs with Apache Camel
- Apache Camel simplifies system connection and API exposure.
- Learn how Camel integrates with GraphQL and REST APIs for seamless development.
- Apache Camel's DSL and GraphQL's efficient data fetching enhance backend orchestration.
- Explore setting up projects, creating models, services, REST endpoints, and GraphQL schemas.
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12 Likes
Dev
1w
242
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Single Core Hundred Thousand Concurrency（1751263171256200）
- Troubling question for junior CS student: achieving high concurrency on single-core processor.
- Evolution from multi-process to event-driven models. Event-driven architecture key for high concurrency.
- Event-driven processor explained with high-concurrency endpoint processing. Performance testing results shared.
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14 Likes
Dev
1w
390
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Mastering Asynchronous Programming Patterns Task Modern Web（1751263152800600）
- Experience the charm of modern async programming through a Rust-based framework.
- Learn about async advantages like concurrent execution, performance improvement, and resource efficiency.
- Explore async runtime, handling tasks, async stream processing, and performance comparison.
- Deep dive into async thinking for better web app scalability and user experience.
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23 Likes
Dev
1w
1.7k
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API Gateway Design Pattern Unified Entry Management Strategy in Microservice Architecture（1751262543677200）
- API gateways are critical entry points in microservice architectures, handling authentication, load balancing.
- Well-designed gateways abstract microservice complexities, providing unified interfaces, routing, and cross-cutting concerns.
- Advanced gateway features include service mesh integration, dynamic config management, multi-protocol support.
- Performance optimization strategies like connection pooling, caching, compression, enhance gateway operations.
- Security considerations focus on authentication, input validation, DDoS protection, monitoring, and scalability strategies.
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19 Likes
Dev
1w
457
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Flame Graph Reveals Performance Optimization Truth Deep Analysis by Computer Science Student（1751262387538400）
- A junior computer science student shares insights gained from exploring performance optimization in web development.
- The student highlighted the benefits of Rust-based web frameworks, emphasizing memory safety and performance optimization.
- Extensive testing and optimization led to significant performance improvements, leveraging the framework's asynchronous architecture and zero-cost abstractions.
- The experience deepened the student's understanding of modern web development principles, praising the framework's combination of type safety, performance, and developer experience.
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23 Likes
Dev
1w
305
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Perl 🐪 Weekly #727 - Which versions of Perl do you use?
- Perl Weekly 727 ran a poll on Perl versions used at work.
- Results showed varying version usage, with comments on using system Perl.
- Editor Gabor Szabo also shared updates on his Perl OOP book and Leanpub.
- Supporting Szabo via Patreon/GitHub was encouraged for those who find his work valuable.
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18 Likes
Medium
1w
220
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Why Data Centers Are Moving Underwater (And What It Means for Your Apps)
- Data centers are now being moved underwater to cool overheating digital infrastructure.
- A 1,433-ton data center is processing high-definition images and AI workloads 35 meters underwater off the coast of China.
- This innovative approach is seen as the next frontier in cloud computing infrastructure.
- The move to underwater data centers can have significant implications for app performance, latency, and environmental impact.
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13 Likes
Dev
1w
186
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When Should You Choose CSS Grid Over Flexbox?
- CSS Grid and Flexbox are tools for creating layouts in different situations.
- CSS Grid is ideal for two-dimensional layouts with precise placement and overlapping elements.
- Use CSS Grid for full-page layouts, responsive designs, and when needing strict control.
- Flexbox is better for one-dimensional layouts like navigation bars or flexible item sizes.
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11 Likes
Dev
1w
161
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The Ultimate Guide to Error Handling in JavaScript: try-catch, Throwing, and Real-World Practices
- Errors in JavaScript are inevitable, but good code remains safe with proper handling.
- The article covers try-catch blocks, throwing errors, and handling async errors in JS.
- Understand why errors occur, how try...catch works, throwing custom errors, and real-world practices.
- Learn best practices, such as meaningful error messages, custom error classes, and async handling.
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9 Likes
Javacodegeeks
1w
195
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Building Internal Developer Platforms with Backstage.io
- Backstage.io is a framework enhancing developer experience through templates, documentation, and governance.
- Its integration at Spotify centralized tools, streamlined workflows, and improved quality and discoverability.
- Backstage's TechDocs, templates, and governance tools benefit organizations like American Airlines and Netflix.
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11 Likes
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