Required dynamically MAP Calculation by using Query String like sql query.

[abdulrehmananwar]

i want you to add feature for flutter Map(). just like sql query string.
in sql query we write some thing like below
string dynamicquery = "select quantity*price as amount from table1";
so we want to write this query for flutter map to calculate frontend calculation dynamically
Map<String,dynamic> mapvalues = new Map();
mapvalues["qty"] = 10;
mapvalues["price"] = 120;
// how to calculate it dynamically
mapvalues.addAll(here we will add dynamicquery result values);