Can I exclude specific CommonJS modules from being converted to ESM in Vite

javascript
import { defineConfig } from 'vite';
import vue from '@vitejs/plugin-vue';

export default defineConfig({
  plugins: [
    vue(),
  ],
  optimizeDeps: {
    include: ['node_modules/your-cjs-module'], // Include specific CJS modules
    exclude: ['node_modules/your-cjs-module-that-should-not-be-transformed'], // Exclude specific CJS modules
  },
});

In this example, the `include` option is used to specify the CommonJS modules that should be included in the optimization process. The `exclude` option is used to specify the CommonJS modules that should not be included in the optimization process.

Additional Options

javascript
  optimizeDeps: {
    esbuildOptions: {
      plugins: [require('esbuild-plugin-commonjs')],
    },
  },
  

- `transform`: This option allows you to specify a custom transformer for the CommonJS modules. For example, you can use it to specify a custom transformer that converts CommonJS modules to ESM:

javascript
  optimizeDeps: {
    transform: (code) => {
      // Custom transformer logic here
      return code;
    },
  },
  

Conclusion