Architecting Fast Updates: Implementing Custom HMR Logic in Vite
Learn how to implement custom Hot Module Replacement (HMR) in Vite to prevent full page reloads and preserve application state during development.
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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.
Stop waiting for full page reloads. Learn how Vite uses native ES Modules to decouple the module graph and enable lightning-fast Hot Module Replacement.
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Vite uses a dependency graph to manage Hot Module Replacement (HMR), allowing modules to opt-in to updates via import.meta.hot . When a module is updated, Vite attempts to invalidate only the affected branch of the graph to avoid a full page reload. A challenge arises when circular dependencies exist within the module graph. In these scenarios, the HMR bound
Integration Boundary Swiper v9+ ships as an ES‑module only distribution, removing the CommonJS/UMD entry points that v8 and earlier exposed. The swiper/react wrapper, which has existed since v8, is itself an ES module and therefore inherits the same constraint. This change forces toolchains that default to CommonJS – such as Jest’s default configuration or o