模块化操作

package.json

{
  "name": "moduledemo",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "keywords": [],
  "author": "",
  "license": "ISC"
}

01.js

const sum=function(a,b){
    
	return parseInt(a)+parseInt(b)
}
const subtract=function(a,b){
    
	return parseInt(a)-parseInt(b)
}

module.exports={
    
	sum,
	subtract
}

02.js

const m=require('./01.js')

console.log((m.sum(6,5)))
console.log((m.subtract(6,5)))