[ Node.js ] switch 사용법

a.js

var printHelloWorld = () => {
    console.log('Hello World');
    console.log('Hello World!!!!');
};

module.exports = {
    printHelloWorld
};

var test = 'doingsdf';

var printResult = () => {
    switch (test) {
        case 'start':
            console.log('start');
            break
        case 'end':
            console.log('end');
            break
        case 'doing':
            console.log('doing');
            break

        default:
            console.log('pass');
    }
}

module.exports = {
    printResult
};

b.js

var func = require('./a.js');

//func.printHelloWorld();
func.printResult();