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Object.defineProperty Explained Simply
A practical, senior-dev guide to property descriptors, getters/setters, defaults that surprise people, and real-world recipes you’ll actually reuse. Introduction Most of…
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JSON.stringify Tips for Complex Data
From circular references to BigInt, Dates, and custom replacers — how to serialize JavaScript objects safely and predictably. Introduction At first glance,…
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Storing Complex Objects in localStorage
A practical, senior-dev guide to serializing complex data (Dates, Maps/Sets, BigInt, circular refs), compression, versioning/migrations, quotas, and rock-solid utilities for…
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Debouncing Object Updates in the Browser
How to throttle noisy state changes, avoid localStorage jank, and keep your UI snappy with debounce patterns for object updates. Introduction…
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Pattern: Using Objects as Caches
Practical recipes for blazing-fast lookups in the browser and Node — keys, eviction (TTL/LRU), invalidation, memory safety, and TypeScript-friendly utilities. Introduction You…
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Why JavaScript is Single Threaded — But Not Really
Understanding the Event Loop, Web APIs, and Concurrency without losing your sanity Introduction You’ve probably heard this before: “JavaScript is single-threaded.”…
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Why Temporal Dead Zone Still Trips Up Beginners
Demystifying one of JavaScript’s most misunderstood concepts — with clear rules, examples, and gotchas. Introduction If you’ve ever seen an error like: ReferenceError:…
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Chainable Methods: Write Your Own Lodash
Build a tiny, fast, chainable utility library from scratch — complete with lazy evaluation, mixins, and TypeScript types. Introduction Fluent, chainable APIs…
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Memoization Patterns in Vanilla JS
Speeding up expensive function calls with caching strategies you can write by hand Introduction Every developer has faced this: a function…
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IIFE: The Pattern You Should Know
Why Immediately Invoked Function Expressions still matter in modern JavaScript. Introduction Before ES6 modules, IIFEs (Immediately Invoked Function Expressions) were…