JavaScript Fundamentals & Patterns
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Publish-Subscribe Pattern
11 min read • Published onLearn the architectural principles, implementation strategies, and production-grade patterns for building scalable, resilient event-driven systems using the Pub/Sub pattern.
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Error Handling Paradigms in JavaScript
21 min read • Published on • Last Updated OnMaster exception-based and value-based error handling approaches, from traditional try-catch patterns to modern functional programming techniques with monadic structures.
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JavaScript String Length and Unicode
7 min read • Published on • Last Updated OnUnderstand why '👨👩👧👦'.length returns 11 instead of 1, and learn how to properly handle Unicode characters, grapheme clusters, and international text in JavaScript applications.TL;DRJavaScript’s string.length property counts UTF-16 code units, not user-perceived characters. Modern Unicode text—especially emoji and combining characters—requires multiple code units per visual character. Use Intl.Segmenter for grapheme-aware operations.
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LRU Cache and Modern Alternatives
16 min read • Published on • Last Updated OnLearn the classic LRU cache implementation, understand its limitations, and explore modern alternatives like LRU-K, 2Q, and ARC for building high-performance caching systems.
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Exponential Backoff and Retry Strategies
14 min read • Published on • Last Updated OnLearn how to build resilient distributed systems using exponential backoff, jitter, and modern retry strategies to handle transient failures and prevent cascading outages.
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Asynchronous Task Processing in Node.js
9 min read • Published on • Last Updated OnBuild resilient, scalable asynchronous task processing systems from basic in-memory queues to advanced distributed patterns using Node.js.