Solving the Dev-Server Lag: How Vite's Native ESM Approach Changes HMR
Stop waiting for bundles to rebuild. Learn how Vite uses Native ESM and esbuild pre-bundling to decouple the module graph from the reload cycle for near-instant HMR.
ReadMeFeed / Community knowledge
Real questions. Useful conversations. Find the people who know your stack.
Stop waiting for bundles to rebuild. Learn how Vite uses Native ESM and esbuild pre-bundling to decouple the module graph from the reload cycle for near-instant HMR.
Discover how Vite eliminates slow cold starts by leveraging native ES Modules (ESM) to serve code without bundling during development.
Vite avoids slow cold starts by serving source files as native ES modules in dev and pre-bundling CommonJS dependencies on demand with esbuild. This keeps startup fast and HMR stable when configured with optimizeDeps.
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.
Tree-shaking in Rollup depends on a precise sideEffects contract. Learn how ESM boundaries, named exports, and visualizer audits keep library bundles lean.
Diagnose Rollup circular dependency warnings by reading the module chain, extracting shared code to a leaf module, deferring with dynamic import, or externalizing third-party cycles.
Vite’s Hot Module Replacement uses native ES modules to update only changed parts of an app, preserving state with React Fast Refresh. See a concrete example, how to use <code>import.meta.hot</code>, and common pitfalls.
Learn how to implement custom Hot Module Replacement (HMR) in Vite to prevent full page reloads and preserve application state during development.
Learn how to use the import.meta.hot API in Vite to create HMR boundaries, prevent full page reloads, and properly clean up side effects during development.