从sqlite数据库中获取结果

Question

i want to get the location from specific user and when i run this code it gets me error ' Uncaught TypeError: Cannot read property 'location' of undefined ' and i dont know how i can fixed. this is the code :

db.transaction(function(tx){
     tx.executeSql("SELECT location FROM users WHERE username='"+username+"'",[], success ); 
});

function success(tx,results){
     var city = results.rows.item[0].location;
}

Answer 1

在result.rows上调用item时，您使用的是方括号而不是括号。