externals#

• Type: string | object | function | RegExp
• Default: undefined

At build time, prevent some import dependencies from being packed into bundles in your code, and instead fetch them externally at runtime.

For more information, please see: webpack Externals

Example#

Exclude the react-dom dependency from the build product. To get this module at runtime, the value of react-dom will globally retrieve the ReactDOM variable.

export default {
  output: {
    externals: {
      'react-dom': 'ReactDOM',
    },
  },
};