Question

I need to store datas like DBs does on client-side in JS,

db.insert(unique_key,{
    a : 20,
    b : 30
}) ;
db.select('a>10') ;

This is just illustrative syntax to show,

How can I procces datas more than key/value pair do.

Any acknowledge would be great,

Thank you!

Answer 1

You can use JavaScript object literal notation to store data and a javascript linq library (ex. jslinq) to query them.
If you can use jQuery, data operation are simple see: Adding/removing items from JSON data with JQuery

Example from codeplex jslinq:

var myList = [
            {FirstName:"Chris",LastName:"Pearson"},
            {FirstName:"Kate",LastName:"Johnson"},
            {FirstName:"Josh",LastName:"Sutherland"},
            {FirstName:"John",LastName:"Ronald"},
            {FirstName:"Steve",LastName:"Pinkerton"}
            ];

var exampleArray = JSLINQ(myList)
                   .Where(function(item){ return item.FirstName == "Chris"; })
                   .OrderBy(function(item) { return item.FirstName; })
                   .Select(function(item){ return item.FirstName; });