1 views collected around this technical thread.
This article explains how React relies on shallow comparison of immutable data to trigger re‑renders, demonstrates common pitfalls when mutating state directly, and shows how using Immer provides a concise, copy‑on‑write solution that reduces bugs, memory usage, and CPU overhead.
Immer.js, created by the author of MobX, provides a lightweight immutable data library for JavaScript using ES6 proxies, offering simple APIs and seamless integration with React’s state management, while comparing its concepts, implementation details, and trade‑offs against Immutable.js and manual cloning techniques.
This article introduces functional programming concepts including pure functions, currying, function composition, and declarative vs imperative code, with practical JavaScript examples and a Flickr API demo application.
The article recounts the author’s early encounters with big‑data challenges, the shift from relational to NoSQL systems, the development of an immutable‑data batch architecture, and the eventual formulation of the Lambda Architecture, illustrating how simplicity and fault‑tolerance can replace complex incremental designs.