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PlanetPython

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Mirek D��ugosz: Interesting bugs: peculiar intermittent failure in testing��pipeline

The article discusses a peculiar intermittent failure encountered in a testing pipeline.
The author describes maintenance of a suite of automated tests, with one test repeatedly failing intermittently.
The failing test involved checking a chart plotting data from the last 30 days against data retrieved from an API.
Despite local transformations to align the data structures, the test would intermittently fail without a clear reason.
Deepdiff comparisons were used for data validation, highlighting differences that were challenging to interpret in the logs.
The author attempted to isolate the issue by running the test locally but was unable to reproduce the problem.
Further analysis revealed discrepancies in the date ranges requested from the API and displayed on the UI, leading to the intermittent failures.
A pattern was observed where the test failed only in the first run of the day shortly after midnight UTC, hinting at a time-related issue.
Additional logging was added to gather more information on the discrepancy between JavaScript and Python times during test execution.
Ultimately, the issue was traced back to clock synchronization problems on machines running Selenium Grid, resolved by configuring NTP to use a specific server.

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Medium

369

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Why I Don’t Recommend Bootcamps or Computer Science Degree Programs

The writer was unable to find a job as a software engineer despite having some available opportunities.

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Dev

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The Building Blocks of an AI Coding Assistant

The article discusses the essential building blocks of an AI coding assistant by exploring continue.dev as an open-source platform revolutionizing AI coding tools.
It emphasizes the importance of understanding components like Models, Context, Docs, MCP Servers, Rules, Prompts, and Data to effectively utilize AI coding assistants.
Models in coding assistants define deep learning models for various roles such as Chat, Autocomplete, Edit, and more, with support from providers like OpenAI, Amazon Bedrock, and others.
Context blocks allow pulling data from external sources like documentation sites, while Docs blocks index documentation locally for quick reference.
MCP Servers, based on the Model Context Protocol, share language model tools standards and are integral to AI coding assistants.
Rules in coding assistants provide instructions for generating relevant code, following specific guidelines such as Effective Go Principles in Go programming.
Prompts offer reusable chat prompts for assisting with tasks, exemplified by the 'Go Hype Beast' prompt for idiomatic Go code suggestions.
The article highlights the importance of adopting a block-based approach to AI assistants for customization, task specialization, and transparency in the coding process.
By enabling a composable framework, continue.dev empowers users to build tailored coding assistants based on their needs and preferences.
Users can leverage the seven building blocks to create personalized AI coding assistants, enhancing productivity and workflow efficiency.

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Dev

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Building a Low-Level Game Engine from Scratch

CHIFEngine is a low-level graphics engine focused on large-scale open-world games, designed for customizability and performance.
The engine utilizes an Entity Component System (ECS) for modular and efficient entity handling, with a focus on cache efficiency and performance.
CHIFEngine implements a custom job system for parallelizing tasks like physics, AI, and procedural generation, improving performance and scalability.
Challenges in building the engine include memory management, procedural generation, and efficient asset handling.

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Dev

144

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Worklets and Threading in Reanimated for Smooth Animations in React Native

Reanimated is a powerful tool for building smooth animations in React Native.
Worklets are short-running JavaScript functions that execute on the UI thread, offloading heavy computation and animation logic from the JavaScript thread.
Worklets offer key features such as running in a separate thread, simple syntax, and performance optimization for gestures, transitions, and animations.
Threading in Reanimated allows fine control over where and how functions run, including options like runOnJS, runOnUI, runOnRuntime, and createWorkletRuntime.

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Javacodegeeks

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Hybrid Auth: Integrating Firebase with OAuth2 Proxy in Kubernetes

This guide explains how to integrate Firebase with OAuth2 Proxy in a Kubernetes environment for hybrid authentication.
Firebase Authentication is commonly used for user management, while Okta provides identity management and authentication solutions.
OAuth2 Proxy acts as an authentication gateway, intercepting requests and ensuring authentication via an OAuth provider before granting access.
The integration involves configuring Okta as an identity provider, deploying OAuth2 Proxy in Kubernetes, exposing OAuth2 Proxy with Kubernetes Ingress, and leveraging the Firebase Admin SDK for token exchange.

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The Pragmatic Engineer

382

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Building Figma Slides with Noah Finer and Jonathan Kaufman

Jonathan Kaufman and Noah Finer discuss the journey of building Figma Slides, from a hackathon project to a full-fledged product with over 4.5M slide decks created.
They share insights on the tech stack, challenges faced, and engineering practices at Figma.
Figma's unique engineering practices include using C++ for frontend development and engaging in EngCrits for feedback.
The complexity of seemingly simple UI elements like the Single Slide View showcases the intricacies of Figma's development.
The team rewrote parts of the C++ codebase to TypeScript and implemented feature flags for testing and deployment.
Figma's testing approach involves running unit and interaction tests with feature flags on and off to prevent regressions.
Engineering challenges included implementing multiplayer cursor functionality and ensuring interoperability between Figma products.
The team utilized tools like DWARF debugging and internal tools for bug identification and resolution.
Beta testing, zero bug policy, and staging environments were key components of Figma's development and release process.
The conversation delved into details about Figma's engineering culture, tech stack, and design-first software engineering approach.

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Microsoft

396

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Use BrowserStack App Automate with Appium UI Tests for .NET MAUI Apps

This blog explores using BrowserStack App Automate to run UI tests for .NET MAUI apps written with Appium and NUnit.
BrowserStack's App Automate allows testing on real iOS and Android devices in the cloud, providing access to 2000+ devices.
It enables testing under real-world conditions, offering preset network conditions and the ability to customize them.
The process involves setting up BrowserStack with existing Appium UI tests for .NET MAUI apps and integrating it into CI/CD pipelines.
Steps include signing up for BrowserStack, creating credentials, and adding BrowserStack configuration files to projects.
Automating tests with BrowserStack involves running them locally or integrating them into Azure DevOps Pipelines or GitHub Actions Workflow.
Detailed test reports with logs, screenshots, videos, and session recordings are generated when tests are run on BrowserStack.
Integrating BrowserStack App Automate ensures that .NET MAUI applications are tested on real devices to identify real-world issues.
Running tests on actual devices aids in detecting issues that may only manifest under real-world conditions.
BrowserStack App Automate streamlines running existing Appium NUnit tests on their Device Cloud for better testing efficacy.

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Logrocket

423

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Skeuomorphism in UX: Definitions, examples, and its relevance today

Skeuomorphism in UX refers to interface elements that imitate real-world objects for visual and interaction cues.
Initially used for physical products, skeuomorphism was prominent in Apple's early iOS designs to aid user understanding.
Skeuomorphism was replaced by flat design in 2013, focusing on minimalist aesthetics and functionality.
Neumorphism, a modern approach, combines aspects of skeuomorphism and flat design for a minimalist 3D effect.
While skeuomorphism has influenced modern design trends, its relevance has diminished as UI/UX favors minimalism.
Best practices for skeuomorphic designs include realistic textures, balance with clarity, and monitoring performance.
Dos for skeuomorphic designs involve keeping them modern and limiting confusing elements while monitoring performance impact.
The decline of skeuomorphism is attributed to cluttered interfaces, obsolescence, and scalability issues compared to flat design.
Flat design, introduced in 2013, emphasizes 2D elements, bright colors, simplicity, and clean typography for enhanced usability.
Neumorphism, emerging in 2019, balances minimalist and 3D effects, but poses accessibility challenges due to low contrast ratios.
Skeuomorphism, though less prevalent now, still finds applications in UI interfaces and branding contexts to create familiar interactions.

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Logrocket

347

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DesignOps explained: Making UX teams work smarter

DesignOps focuses on improving the operational aspects of design teams to enhance efficiency, collaboration, and impact, with a key emphasis on workflows, processes, infrastructure, design systems, and talent management.
Efficient processes from concept to handoff are crucial in achieving higher-quality outcomes with less friction, emphasizing the importance of structured and intentional approaches.
Design infrastructure plays a vital role in providing designers with the necessary tools for effective work, ranging from Figma access to prototyping software and collaborative apps.
Design system management and talent recruitment are essential components of DesignOps, as maintaining a healthy design system and attracting the right mix of designers contribute to organizational success.
DesignOps involves a continuous improvement cycle, focusing on speed, quality, waste reduction, and team satisfaction through regular process reviews and refinement.
Key strategies for efficient DesignOps implementation include understanding the design team's needs, maintaining a clear design process, conducting periodic design system health checks, investing in automation, and facilitating cross-functional collaboration.
Cultivating a strong design culture is crucial, with recurring meetings, such as design critiques, book reviews, and creative sessions, playing a vital role in fostering unity, creativity, and continuous improvement.
A common pitfall in DesignOps is over-standardization, which can hinder creativity and lead to longer lead times, lack of innovation, and decreased job satisfaction.
Balancing structure and flexibility is key in DesignOps to avoid chaos or rigidity, emphasizing the importance of guidelines and best practices over strict instructions.

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Medium

265

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Try This Trick If You Are Not Willing to Spend Money on Cursor IDE

Cursor IDE is a highly accurate and smooth IDE for coding projects.
It offers detailed explanations of errors, making it easier to understand code.
The free trial of Cursor IDE lasts for 14 days with 150 requests from premium models.
Users can extend the trial by utilizing the code indexing feature.

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16 Likes

Johndcook

329

The glass disk game

The glass disk game is a game played on a grid using colored glass disks placed on vertices or edges.
There are specific rules for adding disks, such as creating green disks by copying blue and yellow ones.
The game has a mathematical interpretation involving commutative diagrams in algebraic topology.
The glass disk game is a list of theorems in algebraic topology and homological algebra.

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19 Likes

Medium

292

Unlock the Power of Video Editing: CapCut Pro Benefits

CapCut Pro offers a user-friendly interface, making it easy for beginners to navigate and use.
The app allows high-quality video exports up to 4K resolution for sharp and clear videos.
CapCut Pro provides customizable templates and effects to enhance video editing.
It offers collaboration features, regular updates, affordable pricing, cross-platform compatibility, tutorials, and resources.

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17 Likes

Dev

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Temporal Dead Zone in JavaScript: WTF Is It & Why Should You Care?

The Temporal Dead Zone (TDZ) is a real thing in JavaScript that helps catch bugs early and forces you to write cleaner code.
TDZ exists to make variable access more predictable and avoid the issues caused by var hoisting in previous versions of JavaScript.
Understanding TDZ can help you avoid hidden bugs, improve debugging by throwing clear ReferenceErrors, and follow modern JavaScript best practices.
To escape the TDZ, always declare variables at the top of their scope and use let/const instead of var in modern JavaScript projects.

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2 Likes

Dev

243

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From Local Development to Live Server: A Complete Guide to Deploying Your React JS Project on Ubuntu

Deploying a React JS project on an Ubuntu server can be done following a comprehensive guide.
The guide covers steps such as connecting to the server, server preparation, Node.js and npm setup, project deployment, Nginx configuration, SSL installation with Let's Encrypt, and process management with PM2.
Advanced deployment tips include using environment variables for configuration, error logging, automated deployment scripts, and firewall rules.
Common troubleshooting tips are provided, along with a bonus section on continuous deployment using GitHub Actions or GitLab CI/CD.

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