database - How do I return the results of a query using Sequelize and Javascript? -

i'm new @ javascript , i've hit wall hard here. don't think sequelize question , more javascript behavior.

i have code:

sequelize.query(query).success( function(row){             console.log(row);     } ) 

the var row returns value(s) want, have no idea how access them other printing console. i've tried returning value, isn't returned expect , i'm not sure goes. want row, don't know how obtain :(

using javascript on server side requires use callbacks. cannot "return" them want, can write function perform actions on results.

sequelize.query(query).success(function(row) {     // here stuff on row     // end process     process.exit(); } 

a more practical example, in express route handler:

// create session app.post("/login", function(req, res) {     var username = req.body.username,         password = req.body.password;     // obviously, not inject directly query in real     // world ---- bad.     return sequelize       .query("select * users username = '" + username + "'")       .success(function(row) {           // - never store passwords in plain text           if (row.password === password) {               req.session.user = row;               return res.json({success: true});           }           else {               return res.json({success: false, incorrect: true});           }       }); }); 

ignore injection , plain text password example - brevity.

functions act "closures" storing references variable in scope function defined in. in above example, correct res value stored reference per request callback i've supplied sequelize. direct benefit of more requests can handled while query running , once it's finished more code executed. if wasn't case, process (assuming node.js) wait 1 query finish block other requests. not desired. callback style such code can needs , move on, waiting important or processer heavy pieces finish , call function once complete.

edit

the api handling callbacks has changed since answering question. sequelize returns promise .query changing .success .then should need do.