[Node.js] module exports / require

 

 

exports : object

 

- module exports

// local
const secret = "SUPER SECRET";
// share
const john = "john";
const peter = "peter";

// console.log(module);
module.exports = { john, peter };

 

john, peter 의 key name이 같기 때문에 값을 그대로 전달

 

 

module 위치

const names = require("./04-names");

 

 

 

- module import

const { john, peter } = require("./04-names");
const sayHi = require("./05-utils");

sayHi("susan");
sayHi(john);
sayHi(peter);

 

or

const names = require("./04-names");
const sayHi = require("./05-utils");

sayHi("susan");
sayHi(names.john);
sayHi(names.peter);

 

 

export 각각. 

06-alternative-flavor.js

module.exports.items = ["item1", "item2"];
const person = {
  name: "bob",
};
module.exports.singlePerson = person;

const data = require("./06-alternative-flavor");

console.log(data);

 

 

function export

07-mind-grenade.js

const num1 = 5;
const num2 = 10;

function addValues() {
  console.log(`the sum is : ${num1 + num2}`);
}
addValues();

 

// 함수 호출 module 가져옴

require("./07-mind-grenade");