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Can someone explain how to configure hot module replacement properly with Webpack dev server when working with a legacy JavaScript codebase?

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Can someone explain how to configure hot module replacement properly with Webpack dev server when working with a legacy JavaScript codebase?
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Webpack 5 dev server hot module replacement configuration official documentation webpack-dev-server HMR legacy JavaScriptGoogle ↗
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Webpack 5 dev server hot module replacement configuration official documentation webpack-dev-server HMR legacy JavaScript Google ↗
  1. DevServer · webpack.js.org
  2. Hot Module Replacement · webpack.js.org
  3. hot module replacement with webpack · webpack/docs Wiki · github.com
  4. Hot Module Replacement · webpack.js.org

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Webpack 5 dev server hot module replacement configuration official documentation webpack-dev-server HMR legacy JavaScript
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