Blog
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C++ Virtual Destructor — Complete Guide
Fix C++ memory leaks caused by a missing virtual destructor: why deleting through a base pointer without one causes undefined behavior, and how to fix it.
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NestJS Complete Guide | Build Scalable Node.js APIs
Build production-grade APIs with NestJS. Covers modules, controllers, services, guards, pipes, TypeORM, and testing with practical TypeScript examples.
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C++ Tag Dispatch | Compile-Time Algorithm Selection
Tag dispatch uses empty tag types and overload resolution to pick optimal algorithms—like `std::advance` on random-access vs bidirectional iterators—wit...
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React Native Complete Guide | Mobile Apps with JavaScript
Build iOS and Android apps with React Native. Covers core components, navigation, state management, native APIs, and Expo workflow with practical examples.
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C++ expected | 'Error Handling' Guide
std::expected is a type introduced in C++23 that represents success or error.
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C++ Profiling: Find Bottlenecks with Timers, gprof, perf,
C++ profiling guide: chrono timers, gprof, Linux perf, Valgrind Callgrind, and common pitfalls—measure before you optimize.
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C++ Chat Server Architecture: Boost.Asio, Room Management,
Build production C++ chat servers: Boost.Asio async I/O, acceptor-worker pattern, room management, message routing, connection pooling, heartbeat, grace...
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Python Basics | Variables· Operators
Learn Python syntax: variables, operators, if/elif/else, for/while loops, and indentation. Clear examples for beginners and interview prep.
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C++ Remove Algorithms: remove, unique & the Erase–Remove
Understand std::remove and remove_if with vector erase, unique after sort, list::remove, and C++20 std::erase / erase_if — plus string cleanup patterns.
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C++ Segmentation Fault: Causes, Debugging, and Prevention
Understand SIGSEGV and Access Violation in C++: null pointers, dangling pointers, buffer overflows, and stack overflow.