javascript mysql db connection

var mysql = require('mysql');

var con = mysql.createConnection({
  host: "localhost",
  user: "root",
  password: "",
  database: "experiment"
});
/*
con.connect(function(err) {
  if (err) throw err;
  console.log("Connected!");
});
*/
con.connect(function(err) {
  if (err) throw err;
  console.log("Connected!");
  con.query("SELECT * FROM users", function (err, result) {
    if (err) throw err;
    console.log("Result: " + result);
  });
});