a rollup demo by xujiong

• demo
• plugin

// umd
const { add } = require("xj-rollup-demo");
console.log(11, add(1, 2));

// esm
import { add, reduce, findIndex } from "xj-rollup-demo";

const list = [1, 2, 3, 4, 5, 6];

console.log(
  22222,
  add(2, 2),
  reduce(4, 2),
  findIndex(list, (item) => item === 1)
);