Recursively removing a directory in node.js

rmdir.js

var fs = require('fs')
  , path = require('path')

function rmdir(dir, callback) {
  fs.readdir(dir, function rmfiles(err, files) {
    if (err && err.code == 'ENOTDIR') {
      return fs.unlink(dir, callback);
    }
    else if (err) {
      return callback(err);
    }
    var count = files.length;
    if (count == 0) {
      return fs.rmdir(dir, callback);
    }
    files.forEach(function(file) {
      var todel = path.join(dir, file);
      rmdir(todel, function(err) {
        count--;
        if (count <= 0) {
          fs.rmdir(dir, callback);
        }
      });
    })
  });
}