Answer
Bundlers like Webpack, Vite, or Rollup merge multiple modules into optimized bundles. Tree shaking removes unused exports, reducing bundle size and improving load performance.
Quick Answer
Module bundling (Webpack, Vite, Rollup): combines all module files into one or a few bundles for the browser. Tree shaking: static analysis of ES module imports removes code that's imported but never used. import { specific } from "big-lib" — if only specific is used, tree shaking removes the rest of big-lib from the bundle. Reduces bundle size dramatically.
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SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
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Source: SugharaIQ