Read folder BFS / DFS

var fs;
var folder = c:/

var list = fs.readdirSync(folder); // queue and stack

while(list.length > 0) {
    var item = list.pop(); // DFS
    // var item = list.shift(); // BFS
    if(item.isFile()) {
        console.log(item.name);
    }
    else if(item.isFolder()) {
        var nItems = fs.readdirSync(item);
        list = list.concat(nItems);
    }
}