Return from callback function in Javascript

Question

How do I get the return value from inside a value of node.js/javascript callback?

function get_logs(){
    User_Log.findOne({userId:req.user._id}, function(err,          


        

Answer 1

You can't. You should instead pass another callback to your function. Something like this:

function get_logs(callback){
    User_Log.findOne({userId:req.user._id}, function(err, userlogs){
        if(err) throw err;
        if(userlogs){
            callback("hello there is a logs");
        } else {
            callback("there is no logs yet...");
        }
    })
}

get_logs(function(arg1) {
   console.log(arg1);
});