4.Node.js 使用 Babel 搭建ES6开发环境

{
  "name": "Worktile Pro IM",
  "version": "1.0.0",
  "main": "app.js",
  "scripts": {
    "run": "babel-node app.js",
    "build": "babel . -d .dist --ignore=\"node_modules\""
  },
  "devDependencies": {
    "babel-cli": "*",
    "babel-core": "*",
    "babel-preset-es2015-node5": "*",
    "babel-preset-stage-3": "*",
    "babel-register": "*"
  }
}

cnpm install --save

{
  "presets": ["es2015-node5", "stage-3"],
  "plugins": []
}

// bin.js
require('babel-polyfill');
require('babel-register');
require('./main.js'); // 这个地方引入您的项目的启动文件

export const name = 'calc';
export const add = (x, y) => {
    return x + y;
};

import * as calc from './lib';
const x = 3;
const y = 5;
console.log(`${calc.name}`);
const result_add = calc.add(x, y);
console.log(`${x} + ${y} = ${result_add}`);

$ node bin.js

calc
3 + 5 = 8