rollup.config.js

import { babel } from '@rollup/plugin-babel';
import { nodeResolve } from '@rollup/plugin-node-resolve';
import { terser } from 'rollup-plugin-terser';
import commonjs from '@rollup/plugin-commonjs';
import replace from '@rollup/plugin-replace';
import clear from 'rollup-plugin-clear';

const input = 'lib/main.js';
const fileName = 'canvas-datagrid';

const babelInput = {
  babelHelpers: 'bundled',
  presets: [
    [
      '@babel/preset-env',
      {
        corejs: 3,
        useBuiltIns: 'entry',
        modules: false,
        spec: true,
        targets: '> 0.25%, not dead',
      },
    ],
  ],
};
export default {
  input,
  plugins: [
    clear({ targets: ['dist'] }),
    replace({
      'window.EXCLUDE_GLOBAL': 'true',
    }),
    nodeResolve(),
    commonjs(),
    babel(babelInput),
  ],
  output: {
    file: `dist/${fileName}.module.js`,
    plugins: [terser()],
    sourcemap: true,
  },
};