I would love to know a few things about Node.js async and MongoDB. If the server starts before my connection to, and my templates or Ajax depend on data from the database will serving (I precompile my handlebars) the HTML file fail or will my templates/Ajax wait for the connection and then continue?

If it works, I would love to understand better how exactly it worked! If it fails, how can I "fix" it elegantly?

This is an example of a solution, using hoisting (seems bad to me tbh):

//connect to db
mongodb.connect("someDBplace",
    (err, db)=>{
    if(err){
        return generalLogger.error(`The database has failed to connect: ${err}.`);
    }else{ //start the server now:
        generalLogger.info(`Connected to database: ${stringify(db.databaseName)}.`);

server.listen(`${port}`, (err)=>{
    if(err){
        generalLogger.error(err);
    }
    //for demo: console th eMIMEtype
    generalLogger.info(`The Server started on port: ${port}.`);
});
    }
});