nodejs 如何使用 ES6 的 import 等语法

nodejs 如何使用 ES6 的 import 等语法

package.json

{
  "dependencies": {
    "babel-polyfill": "^6.26.0",
    "koa": "^2.7.0",
    "koa-bodyparser": "^4.2.1",
    "koa-router": "^7.4.0",
    "koa-static": "^5.0.0"
  },
  "devDependencies": {
    "babel-cli": "^6.26.0",
    "babel-preset-env": "^1.7.0",
    "babel-preset-stage-0": "^6.24.1",
    "babel-register": "^6.26.0"
  }
}

start.js

require('babel-polyfill');
require('babel-register');
require('./server.js');

server.js

import Koa from 'koa';
import KoaStatic from 'koa-static';
import Router from 'koa-router';
import bodyParser from 'koa-bodyparser';

const app = new Koa();

app.use(bodyParser());
app.use(KoaStatic(__dirname + '/public'));
const router = new Router();
router.get('/', async (ctx) => {
  ctx.body = 'hello';
});
app.use(router.routes(), router.allowedMethods());
mongodbServer();
app.listen(1111, () => {
  console.log('listen:1111');
});