weboack的简单使用（commonJs与es6）

 npm install webpack@3.6.0 -g

function add(num1,num2){
  return num1+num2
}
function mul(num1,num2){
  return num1*num2
}

module.exports = {
  add,
  mul
}

const {add,mul} = require("./mathUtils.js")
console.log(add(20,30))

 webpack ./src/main.js  ./dist/bundle.js

 <script src="./dist/bundle.js"></script>

let name = ‘why‘
let age = ‘18‘
let height  = 1.88
export {name,age,height}

const {add,mul} = require("./mathUtils.js")
console.log(add(20,30))
//以下为es6的写法
import {name,age,height} from ‘./info‘
console.log(name)