How to return the value out side of the query function nodjs

Question

I am trying to get the value from mysql using node.js. Now i want to that value display out side of the query function

 

I am trying this code :

 

var someVar=[];

con.query('SELECT Mobiles from Salestb' , function (err,rows,callback) {

if(err) {

throw err;

} else {

setValue(rows[0].Mobiles);

}

});

function setValue(value) {

someVar = value;

console.log(someVar);

}

console.log(someVar);

 

But it shows Null Value