FileInfo for NodeJS

FileInfo.js

var fs = require('fs');
var path = require('path');
var mime = require('mime');

var FileInfo = function (fullPath) {
  if (fs.existsSync(fullPath)) {
    this.fullPath = fullPath;
    var stats = fs.statSync(fullPath);
    this.size = stats["size"];
    this.name = path.basename(fullPath);
    this.contentType = mime.lookup(fullPath);
  }
};

FileInfo.prototype.fullPath = "";
FileInfo.prototype.name = "";
FileInfo.prototype.size = 0;
FileInfo.prototype.contentType = "";

module.exports = FileInfo;