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PlanetPython

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Mirek D��ugosz: Interesting bugs: Artifact building failure caused by GitHub API rate��limits

  • A memorable bug encountered at work involved GitHub API rate limits causing artifact building failure in a Jenkins pipeline.
  • The bug surfaced issues not visible in local development and showcased the value of broad knowledge in troubleshooting.
  • The pipeline step aimed to build a container image from code versions with proposed changes in a standard web app architecture setup.
  • GitHub API requests for extracting the newest frontend version led to HTTP status 429 errors due to rate limits, despite small team activity.
  • Investigation revealed different rate limits for authenticated users, prompting a hypothesis on shared IP addresses in the company.
  • Updating API requests with authentication tokens increased the rate limit from 60 to 5000 per hour, resolving the rate limit issue.
  • Challenges in passing the token through multiple layers in the container build environment led to implementing secret mounting for security.
  • This solution ensured pipeline success without API rate limit errors, providing a correct resolution to the artifact building problem.

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Logrocket

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Using CSS breakpoints for fluid, future-proof layouts

  • CSS breakpoints are crucial for creating responsive web layouts that adjust dynamically to different screen sizes based on viewport widths.
  • Modern breakpoints focus on content-driven thresholds rather than fixed device widths, emphasizing fluid layouts and new CSS features like container queries for future-proof designs.
  • Responsive design, introduced by Ethan Marcotte, uses fluid grids and media queries to adapt styles based on viewport characteristics, replacing the need for separate desktop and mobile versions of websites.
  • Breakpoints are specific viewport widths at which a site's layout shifts, with common ones like 768px distinguishing tablet from desktop layouts.
  • Modern CSS tools like Flexbox and Grid support responsiveness, while newer features like clamp() and container queries offer more dynamic control over layouts.
  • Choosing breakpoints involves considering either device-based breakpoints or content-based breakpoints that adapt the design where content adjustment is needed.
  • Popular CSS frameworks like Bootstrap and Tailwind have default breakpoints for different screen sizes, offering predefined classes for creating responsive layouts.
  • Best practices for creating CSS breakpoints include starting with a mobile-first approach, avoiding awkward breakpoint ranges, and wisely using media and container queries.
  • Testing responsive breakpoints can be done using browser tools like Chrome DevTools or cloud-based testing tools to ensure consistent design across devices.
  • Emerging techniques like fluid design and tools like Utopia promote proportional and fluid scaling without the need for fixed breakpoints, enhancing adaptability and design consistency.

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Logrocket

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How to use Relume AI to design wireframes fast-er

  • Relume AI is an AI-powered tool that helps designers create wireframes quickly.
  • It assists in generating sitemaps, building wireframes, and exporting to Figma.
  • Relume is ideal for those looking to bypass a blank canvas or in need of layout ideas.
  • It is best suited for users familiar with designing templates and using prompts effectively.
  • The tool may not be suitable for those with clear layouts based on research or who prefer hands-on sketching.
  • Traditional wireframing involves manual building, while AI wireframing is faster and generated based on input.
  • Relume offers free and premium plans for users, enabling them to access advanced features for complex projects.
  • The tool allows users to create projects, generate sitemaps, edit wireframes, and export them to Figma seamlessly.
  • AI wireframing tips include providing detailed prompts, treating AI wireframes as drafts, and adding personal touches.
  • Relume offers a quick and structured wireframing solution but may sometimes produce generic layouts.

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Hackaday

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Simulation and Motion Planning for 6DOF Robotic Arm

  • Leo Goldstien shared an update on Hackaday.io about his 3D printed 6DOF robotic arm named ManiPylator.
  • The update covers the command and control aspects, simulation, and testing involved in operating the robotic arm.
  • The project is based on free and open-source software, utilizing planning and simulation software with MQTT message queues.
  • The robotic arm successfully traced out the shape of a heart based on a mathematical equation expressed in Python code, demonstrating its capabilities.

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Logrocket

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React forwardRef explained: Usage, alternatives, and React 19 update

  • forwardRef is a React utility that lets a parent component pass a ref through a child component to access the child’s DOM node or instance directly.
  • It enables direct interaction between parent and child components, especially when dealing with higher-order components or wrapper components.
  • Refs in React allow access and interaction with DOM elements directly, bypassing typical data flow and enabling actions beyond props and state.
  • Common use cases for refs include managing focus, text selection, media playback, triggering animations, integration with third-party DOM libraries, and measuring element dimensions.
  • While powerful, refs should be used sparingly to maintain code clarity and readability, favoring props and state for data flow.
  • Creating and attaching refs in class components involves using createRef to create a ref and associating it with a DOM element for direct manipulation.
  • In functional components, refs cannot be attached directly, but forwardRef allows for ref forwarding, enabling parent components to interact with child components' DOM elements.
  • useImperativeHandle works with forwardRef to customize instance values exposed when using refs, providing more control and functionality.
  • Refs should not be used unnecessarily in React, especially for unnecessary DOM manipulation, accessing internal states of child components, or replacing controlled components.
  • Choose between forwardRef, useRef, callback refs, React Context, and useImperativeHandle based on the component hierarchy and the need for direct DOM access.

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Javacodegeeks

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JMeter Session Cookie Management Example

  • When testing web applications using Apache JMeter, handling session cookies is vital for simulating real-world user behavior—especially in login/logout scenarios.
  • Apache JMeter uses the HTTP Cookie Manager to store and resend cookies automatically, mimicking browser-like session behavior.
  • The setup of a JMeter test plan involves adding Thread Group, HTTP Request Defaults, HTTP Cookie Manager, login request, protected page request, logout request, and listeners.
  • Managing sessions with cookies is crucial for accurate performance testing, and JMeter's HTTP Cookie Manager simplifies this process by handling cookies across requests.

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Logrocket

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How to use the useEffect hook in React: A complete guide

  • useEffect enables handling side effects directly inside functional components in React, from data fetching to DOM manipulation.
  • This guide aims to clarify the core concepts behind useEffect, covering real-world lessons and effective usage patterns.
  • Basic usage of useEffect involves running code once when the component mounts: useEffect(() => { // Code to run once }, []);
  • useEffect in React is for handling effects like fetching data or DOM manipulation and differs significantly from class-based lifecycle methods.
  • Understanding basic JavaScript concepts is crucial when using useEffect to avoid problems with outdated props or state values.
  • Key points include defining effects clearly, controlling dependencies, adding cleanup logic, avoiding unnecessary effects, and keeping effects efficient.
  • useEffect is commonly used for asynchronous tasks like data fetching, allowing components to manage actions after mounting.
  • Effects run after rendering and update in React, providing asynchronous behavior without blocking the UI.
  • Advice for seasoned React developers includes transitioning from class-based components to functional components with Hooks.
  • The control flow of effects in React includes initial render/mounting, subsequent renders, cleanup function execution, and unmounting.

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RealPython

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Execute Your Python Scripts With a Shebang

  • Shebang line (#!) in shell scripts specifies the path to the interpreter to execute the file.
  • It allows running Python scripts directly without explicitly calling the Python interpreter.
  • Include shebang for scripts requiring direct execution but not for import-only modules.
  • Best practices involve using /usr/bin/env for portability and ensuring script executability.

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Johndcook

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Approximation of Inverse, Inverse of Approximation

  • The inverse of an approximation is an approximation of the inverse, which may vary in quality depending on the situation.
  • When considering derivatives and inverse functions, the best linear approximation to the inverse of a function at a point is the inverse of the best linear approximation to the function.
  • The inverse function theorem states that for a smooth function, the best linear approximation to the inverse function at a point is the linear transformation represented by the inverse of the matrix representing the linear approximation of the function.
  • The theorem emphasizes the exactness of the approximations at a point, with specific conditions such as differentiability and non-singularity of the derivative.

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Medium

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Why I stopped using hosted AI and ran one on my own machine

  • Running AI locally provides more control, privacy, and eliminates concerns like rate limits and data security.
  • Transitioning to local AI means no reliance on external services, ensuring data stays on the user's machine.
  • Local AI tools offer quick responses without network lag or dependence on cloud resources.
  • With local AI, users can work offline and have more direct interaction with AI models.
  • Setting up and running local AI models is accessible to developers, writers, and designers.
  • Users can run small to medium-sized models effectively on modern machines without cloud dependencies.
  • Tools like Ollama and LM Studio optimize memory usage for smooth local AI operation.
  • Installing local AI tools is straightforward, requiring basic setup skills comparable to npm installation.
  • The local AI landscape has evolved with mature tooling that offers an improved user experience.
  • Local AI allows users to prototype in the cloud and then deploy or experiment locally.

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Medium

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Why Writing Is Essential for Engineering Managers

  • Writing is crucial for engineering managers as it helps in scaling themselves by providing clear instructions and reducing dependency on them.
  • Written documentation facilitates actual alignment among team members by ensuring everyone interprets priorities, decisions, and trade-offs uniformly.
  • Maintaining written records such as decisions, design docs, and performance notes is essential to remain honest and avoid revisionist history when things go wrong.
  • Encouraging a culture of writing in the team can help in developing engineers who can efficiently manage projects, mentor others, and make informed decisions.

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Technically Dev

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Technically dispatch: Why Databricks wanted a database

  • Databricks acquired a small database company called Neon, which is a wrapper around PostgreSQL, known for helping build basic apps.
  • Databricks traditionally focused on analytical workflows while Neon is more transactional, leading to confusion among developers.
  • Speculations suggest Databricks aims to expand into the operational market to stay competitive in the AI field where open-source alternatives are challenging their dominance.
  • Neon's AI agent-focused development and ease of use via API could offer Databricks the opportunity to integrate their production database for apps built using AI agents.

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Dev

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Type Aliases and Newtypes: Wrapping for Safety

  • Type aliases and newtypes in Rust provide ways to add semantic meaning and enforce type safety in programming.
  • Type aliases allow creating alternative names for existing types, improving readability but not enforcing stricter type safety.
  • Newtypes, implemented using tuple structs, introduce distinct types for stricter type safety compared to type aliases.
  • Practical examples show how newtypes prevent logical bugs by enforcing correct usage of types, enhancing code safety.
  • Newtypes are particularly useful for scenarios like enforcing units of measure to avoid confusion and improve code clarity.
  • Overusing type aliases can lead to bugs due to the lack of strict type enforcement, making newtypes more suitable for critical distinctions.
  • Boilerplate code with newtypes can be reduced by implementing traits like Deref or From for easier access to inner values.
  • Newtypes in Rust are considered zero-cost abstractions, as the compiler optimizes them away without introducing runtime penalties.
  • Type aliases enhance readability, while newtypes ensure correctness at compile time, making them valuable tools for Rust developers.
  • Exploring Rust's trait system and real-world applications of newtypes can deepen understanding and utilization of these concepts.

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Medium

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CSS Grid Problems That Is Frustrating (And How I Fix Them)

  • CSS Grid layout can be frustrating due to various problems like incorrect positioning, weird gaps, alignment issues, and poor mobile responsiveness.
  • Common issues include elements ending up in wrong places, strange gaps between items, inconsistent alignment, and desktop designs not translating well to mobile.
  • Solutions involve checking container properties, using correct grid properties like gap, understanding alignment systems, and creating responsive layouts with auto-fit and media queries.
  • Debugging tools like Firefox's Grid Inspector, pen and paper for visualizing layouts, and explaining problems out loud can help in resolving CSS Grid issues effectively.

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Logrocket

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​​Improving frontend workflows with in-browser database tools

  • In-browser database sandboxes help frontend developers manage data directly in their web browsers, enabling dynamic user interfaces, offline applications, and quick testing without complex backend systems.
  • These tools, like RxDB, database.build, Neo4j Sandbox, and AskYourDatabase, utilize APIs like IndexedDB for storing, searching, and syncing data while offering AI features for simplifying database tasks.
  • Key features of in-browser database sandboxes include running lightweight tools in browsers, working offline, and using AI for natural language queries, automated data generation, and data visualization.
  • Benefits for frontend tasks include supporting dynamic UIs with real-time data updates, aiding quick prototyping with mock data, and enabling offline functionality for seamless user experiences.
  • In-browser database tools like RxDB offer features such as reactive architecture, strong offline capabilities, and smooth syncing with backend databases, beneficial for SPAs and PWAs.
  • database.build, an SQL-based tool, facilitates rapid prototyping, mock data creation, and simple queries with AI query suggestions and data generation, all in the browser without complex setups.
  • Neo4j Sandbox caters to graph-based data modeling needs, assisting in data visualization and managing complex relationships, while offering tools like Neo4j Bloom for query suggestions and data exploration.
  • AskYourDatabase simplifies data management with AI-powered natural language queries, making it easy for users to work with SQL and NoSQL databases directly in the browser or through a desktop application.
  • Various tools offer AI-driven features to improve frontend workflows by suggesting queries, creating datasets, and aiding data visualization, catering to developers with different levels of database knowledge.
  • Choosing the right in-browser database tool depends on project goals, leverage of AI features, preference for in-browser vs. cloud options, cost considerations, and accessibility, ensuring optimal frontend workflow enhancements.

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