calc.js

exports.add= function (a, b){
    return a +b;  
};

ch02_test5.js

var calc =require('./calc');
console.log('모듈로 분리한 후 - calc.add : ' +  calc.add(20, 20));

Command: node "C:/Program Files (x86)/Brackets/samples/ko/Getting Started/macaronics/ch02_test5.js"

Working directory: C:/Program Files (x86)/Brackets/samples/ko/Getting Started/macaronics/

모듈로 분리한 후 - calc.add : 40

Program exited with code 0