Node.js module exports and require

lib.js

let person = {
    age:23,
    name:"Mehmet Burak Erman",
    
    show: function() {
    	return this.name;
    }
}

function foo() {
	return 'foo!'
}

module.exports.person = person;
module.exports.foo = foo;

/* == OR ==*/
module.exports = {
	"person":person,
	"foo":foo
}
  
  

main.js

let lib= require('./lib.js');

console.log(lib.foo());      // > foo!
console.log(lib.person.age); // > 23