Sự khác biệt giữa Vite dev server và Webpack dev server?

Cold start comparison: Webpack dev server bundle toàn bộ module graph trước khi server ready — project 1000 modules có thể mất 10-30 giây; Vite start trong <1 giây bất kể project size vì không pre-bundle source.
Dependency pre-bundling: Vite dùng esbuild pre-bundle node_modules một lần (cached), browser chỉ cần load vài files thay vì hàng nghìn; Webpack bundle tất cả cùng nhau.
HMR mechanism differences: Webpack HMR phải re-compile affected module và dependencies, có thể mất 1-10 giây với large modules; Vite HMR chỉ invalidate changed module và propagate lên import chain, thường <100ms.
Vite precision: Vite biết chính xác file nào thay đổi và chỉ update đúng phần đó; React Fast Refresh với Vite preserve component state khi update.
Trade-off: Vite dev (ESM) và production (Rollup bundled) có thể có behavior khác nhau — potential inconsistencies với circular imports hay module loading order.
Large projects: Vite advantage càng rõ khi project lớn hơn — Webpack cold start tăng linear với module count, Vite gần như constant.
Turbopack (Next.js 13+): Vercel's Webpack successor viết bằng Rust, cạnh tranh trực tiếp với Vite về speed trong dev mode.

Cold start comparison: Webpack dev server bundles the entire module graph before the server is ready — a project with 1000 modules can take 10-30 seconds; Vite starts in under 1 second regardless of project size because it does not pre-bundle source files.
Dependency pre-bundling: Vite uses esbuild to pre-bundle node_modules once (cached), so the browser only needs to load a few files instead of thousands; Webpack bundles everything together.
HMR mechanism differences: Webpack HMR must recompile the affected module and its dependencies, which can take 1-10 seconds for large modules; Vite HMR only invalidates the changed module and propagates up the import chain, typically under 100ms.
Vite precision: Vite knows exactly which file changed and updates only that part; React Fast Refresh with Vite preserves component state on update.
Trade-off: Vite dev (ESM) and production (Rollup bundled) environments can have different behavior — potential inconsistencies with circular imports or module loading order.
Large projects: Vite's advantage becomes more pronounced as the project grows — Webpack cold start increases linearly with module count, Vite stays nearly constant.
Turbopack (Next.js 13+): Vercel's Webpack successor written in Rust, directly competing with Vite in dev-mode speed.

Xem toàn bộ Build Tools cùng filter theo level & chủ đề con.

Cold start comparison: Webpack dev server bundle toàn bộ module graph trước khi server ready — project 1000 modules có thể mất 10-30 giây; Vite start trong <1 giây bất kể project size vì không pre-bundle source.
Dependency pre-bundling: Vite dùng esbuild pre-bundle node_modules một lần (cached), browser chỉ cần load vài files thay vì hàng nghìn; Webpack bundle tất cả cùng nhau.
HMR mechanism differences: Webpack HMR phải re-compile affected module và dependencies, có thể mất 1-10 giây với large modules; Vite HMR chỉ invalidate changed module và propagate lên import chain, thường <100ms.
Vite precision: Vite biết chính xác file nào thay đổi và chỉ update đúng phần đó; React Fast Refresh với Vite preserve component state khi update.
Trade-off: Vite dev (ESM) và production (Rollup bundled) có thể có behavior khác nhau — potential inconsistencies với circular imports hay module loading order.
Large projects: Vite advantage càng rõ khi project lớn hơn — Webpack cold start tăng linear với module count, Vite gần như constant.
Turbopack (Next.js 13+): Vercel's Webpack successor viết bằng Rust, cạnh tranh trực tiếp với Vite về speed trong dev mode.

Cold start comparison: Webpack dev server bundles the entire module graph before the server is ready — a project with 1000 modules can take 10-30 seconds; Vite starts in under 1 second regardless of project size because it does not pre-bundle source files.
Dependency pre-bundling: Vite uses esbuild to pre-bundle node_modules once (cached), so the browser only needs to load a few files instead of thousands; Webpack bundles everything together.
HMR mechanism differences: Webpack HMR must recompile the affected module and its dependencies, which can take 1-10 seconds for large modules; Vite HMR only invalidates the changed module and propagates up the import chain, typically under 100ms.
Vite precision: Vite knows exactly which file changed and updates only that part; React Fast Refresh with Vite preserves component state on update.
Trade-off: Vite dev (ESM) and production (Rollup bundled) environments can have different behavior — potential inconsistencies with circular imports or module loading order.
Large projects: Vite's advantage becomes more pronounced as the project grows — Webpack cold start increases linearly with module count, Vite stays nearly constant.
Turbopack (Next.js 13+): Vercel's Webpack successor written in Rust, directly competing with Vite in dev-mode speed.

Xem toàn bộ Build Tools cùng filter theo level & chủ đề con.