rollup.config.js
import babel from 'rollup-plugin-babel';
export default {
input: 'src/index.js',
output: [
{
dir: 'lib',
file: 'index.js',
format: 'cjs',
},
{
dir: 'lib',
file: 'index.es.js',
format: 'esm',
},
],
plugins: [
babel({
babelrc: false,
presets: [['env', { modules: false }]],
plugins: ['transform-object-rest-spread'],
}),
],
};