Optimizing Bundle Size with Rollup Tree-Shaking
Learn how to leverage Rollup's tree-shaking to eliminate dead code from your bundles. Discover the importance of named exports and the risks of the sideEffects flag.
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javascriptChoosing a Lodash Import Strategy to Reduce Bundle Size
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.
lodash
webpackRollup Tree-Shaking: An Architecture Note on Dead-Code Elimination
Tree-shaking is a static-analysis contract, not a minifier toggle. Here is the smallest Rollup design that satisfies it, plus checks and failure modes.
Taming Bundle Bloat: Mastering Tree Shaking in Rollup
Learn how Rollup's tree shaking removes unused code through static analysis of ES Modules and how to avoid common pitfalls like side effects and CommonJS dependencies.
Using Rollup Tree‑Shaking to Remove Unused JavaScript Code
Learn how to configure Rollup’s built‑in tree‑shaking to drop dead exports, understand its limits, and verify that the bundle really shrinks.
Ensuring Core‑JS Tree‑Shaking Works with CommonJS Builds
Context For a low‑traffic web app, every kilobyte of JavaScript counts. Core‑JS 3 offers selective imports (e.g., import 'core-js/modules/es.array.flat'; ) and a runtime detector ( import 'core-js/actual'; ) that can trim polyfills. Babel’s useBuiltIns: "usage" automatically injects only the polyfills that the target browsers actually need. However, Core‑JS
corejslodash vs lodash-es for bundle optimization
A small-scale application currently utilizes the full lodash package. To reduce the production bundle size, there is a need to transition to a more modular import strategy. The primary goal is to minimize the JavaScript payload without introducing runtime regressions or duplicate utility instances. Two documented approaches exist: importing specific methods
Does Rollup preserve re-exported symbols when tree-shaking a library build?
Goal is to configure a Rollup library build that maximizes downstream tree-shaking while keeping the declared public API intact. Static tree-shaking relies on ES module syntax and accurate sideEffects metadata, and code splitting is driven by dynamic import() with manualChunks shaping. Output format choice between es and cjs changes interop helpers and expor