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A decision guide for Webpack 5 splitChunks: compare default, vendor-only, and custom cache group strategies with a production-ready configuration, validation commands, and caching verification steps.
Learn how to enable Rollup’s tree shaking to drop unused ES‑module exports, verify the size reduction, and handle common pitfalls like side‑effects and dynamic imports.
Stop shipping unused code. Learn how Rollup's tree shaking uses ESM static analysis to prune dead code and how to avoid the common 'side effect' pitfalls that break production apps.
Learn how Rollup’s static analysis removes unused JavaScript, what configuration and side‑effect markings are required, and how to verify the savings in a real‑world bundle.
Learn how Babel's transform‑runtime plugin replaces inline helpers with imports from @babel/runtime, cutting duplicate code and preventing global namespace pollution in your JavaScript bundles.
Learn how to configure browserslist and import only the core-js polyfills your target browsers actually need, reducing bundle size without sacrificing compatibility.
Compare full, modular, and plugin-based Lodash imports. Learn how to configure lodash-es with Vite, Webpack, or Rollup for tree-shaking and verify the production bundle.
Learn how to move data fetching into Next.js Server Components to shrink the client‑side JavaScript bundle, keep interactivity isolated, and verify the improvement with browser tools.
Guidance on importing only the needed polyfill, keeping globals clean, and verifying legacy support in a JavaScript library.
webpack
rollup
javascript
corejs
lodash
nextjs