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Tree shaking in React.js leverages ES6 static imports and named exports to eliminate dead code, reducing bundle size and improving load performance, while best practices such as modular design, avoiding side effects and dynamic imports ensure optimal dead‑code elimination across components and libraries.
This article explains the purpose and ES6‑module basis of tree‑shaking, compares the implementation details of Rollup and Webpack, provides configuration and code examples, and shows real‑world bundle size and build‑time results to help developers choose the right bundler for optimal output.
This article explains how Webpack’s tree shaking removes dead code and unused assets by analyzing ES6 module imports, demonstrates configuration for development and production builds, and discusses the role of sideEffects in achieving optimal bundle size.
This article explains the fundamentals and implementation details of Rollup's tree‑shaking feature, showing how unused JavaScript code is identified and removed through static ES6 module analysis, with practical code examples and visual demonstrations of variable, function, and class elimination.