rollup.config.js

import resolve from '@rollup/plugin-node-resolve'

export default {
  input: 'src/index.js',
  output: [
    {
      name: 'parser',
      format: 'cjs',
      file: './index.cjs',
    },
    {
      name: 'parser',
      format: 'esm',
      file: './index.js',
    },
  ],
  plugins: [resolve()],
}