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When your app’s first load feels sluggish, dynamic imports can slice the bundle into on‑demand chunks. This guide shows how to set them up in Webpack, verify they work, and avoid common pitfalls like browser support and load failures.
Reduce initial bundle size by using Rollup's dynamic import() and manualChunks to isolate vendor libraries and lazy-load feature modules on demand.
Automatic Chunking Behavior Rollup automatically creates separate chunks for modules imported via dynamic import() . However, the internal algorithm used to determine which modules share a chunk remains opaque, and the tool does not enforce a default maximum chunk size. Constraints and Uncertainty While output.manualChunks allows for explicit grouping, it re
webpack
rollup