Programming

Questions about C#, Python, Java, algorithms, and code architecture.

ProgrammingSoftware Architecture Comparison & Selection Criteria Guide

Compare common software architecture patterns like microservices, monolithic, and event-driven. Learn key technical & business criteria for selecting the best architecture for your application.

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ProgrammingPython urllib TimeoutError vs URLError Differences

Learn the key differences between TimeoutError and URLError exceptions in Python's urllib.request.urlopen. Understand why TimeoutError occurs after specified timeout while URLError happens closer to threshold.

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ProgrammingPHP Return by Reference: Fix 'Only Variable References' Warning

Learn how to properly return NULL by reference in PHP without triggering 'Only variable references should be returned' warnings. Understand the fix for null-coalescing.

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ProgrammingTroubleshoot EFTCardAdd SOAP API Connection Timeout in Jack Henry jXchange

Learn how to resolve ErrCode 100 connection timeout issues with EFTCardAdd SOAP API in Jack Henry jXchange. Includes network validation, API configuration, and troubleshooting steps.

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ProgrammingGitHub Last Updated Timestamp: Why Folders Show Older Dates

Learn why GitHub shows older 'last updated' dates for folders despite recent file changes. Discover reliable methods to check if a GitHub project is actively maintained.

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ProgrammingHow to Filter JSON Objects with jq to Exclude Substrings

Learn to use jq to filter JSON objects and exclude those containing specific substrings in attributes like 'fruits'. Fix common issues with any() and select() for effective JSON processing and data filtering.

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ProgrammingBackend Development Workflows: Docker Tools & Best Practices

Comprehensive guide to backend development workflows using Docker containers, tools, and best practices for modern backend development environments.

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ProgrammingFix TFTP Server Dynamic XML Configuration for IP Phones

Learn how to fix TFTP server implementation in Node.js to serve dynamically generated XML configuration files for IP phones instead of logging 'file not found' errors.

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ProgrammingHow to Click reCAPTCHA with Python Selenium Automation

Learn how to programmatically click reCAPTCHA checkboxes using Python and Selenium. Complete guide with code examples for Eventbrite automation.

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ProgrammingResolve NotFittedError with StackingClassifier Prefit Models

Learn how to fix sklearn StackingClassifier NotFittedError when using prefit models and pipelines. Complete troubleshooting guide.

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ProgrammingFix ScottPlot WpfPlotGL FileNotFoundException in .NET 10.0

Resolve System.IO.FileNotFoundException when using ScottPlot WpfPlotGL with .NET 10.0. Learn about OpenTK compatibility issues, assembly binding redirects, and step-by-step solutions for WPF plotting in C# on Windows 11.

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ProgrammingFix Vcpkg /MD vs /MT Runtime Mismatch in Visual Studio

Resolve Vcpkg /MD vs /MT mismatch in Visual Studio. Use x64-windows-static triplet, update vcpkg.json, reinstall packages and rebuild to enforce /MT now.

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ProgrammingAdapter vs Strategy Pattern: How to Decide for Outputs

Learn Adapter vs Strategy pattern for multiple outputs like console, file, email. Decision criteria: intent, interface compatibility, runtime selection, coupling. Design patterns examples in C# and Java.

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ProgrammingEnforce Unique customer_id in Pandas DataFrame

Ensure unique customer_id in Pandas: Debug drop_duplicates, normalize types, use set_index(verify_integrity=True), and detect duplicates.

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ProgrammingFix Italian Holiday Calculation: December 28 vs 31 Bug

Learn how to fix JavaScript errors in Italian holiday calculation that incorrectly marks December 28th instead of December 31st. Includes timezone-safe code examples.

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ProgrammingComprehensive .NET Dependency Injection & Services Guide

Practical guide to .NET dependency injection and services: fundamentals, service lifetimes, keyed services, advanced patterns. Books, Microsoft docs, tutorials.

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ProgrammingFix Ollama Verbose Output in OpenCode GPT-OSS TUI

Troubleshoot and fix OpenCode Ollama provider issues causing verbose, incorrect file listing with gpt-oss:20b model. Update opencode.json config, enable tools, test commands for concise outputs like hosted providers.

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ProgrammingFix CL_INVALID_VALUE Error in OpenGL-OpenCL Interoperability for Delphi

Learn how to fix CL_INVALID_VALUE error when creating shared context between OpenGL and OpenCL in Delphi. Complete guide with code examples and best practices.

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ProgrammingRefactor C++/CLI Base64 Encoding in Visual Studio

Improve C++/CLI code for Base64 encoding in Visual Studio. Refactor repetitive code, enhance readability, and boost efficiency. Best practices included.

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ProgrammingData Leakage in Time Series Regression: Closer Snapshots?

Is training a time series regression model on snapshots closer to departure data leakage when predicting earlier? Learn validation strategies, feature rules, and pitfalls to avoid lookahead bias in forecasting final bookings.

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