按日期值对JSON对象进行排序

Question

I have an object in javascript

Object {HIDDEN ID: "06/03/2014", HIDDEN ID: "21/01/2014"}

I want to be able to create a new object that will have it sorted by recent date.

Like so:

SortedObject {"HIDDEN ID" : "21/01/2014", "HIDDEN ID" : "06/03/2014"}

I know how I could achieve this with an array but I dont know how to iterate through objects to sort by date.

Any help is much appreciated

EDIT:

Now I Have this code.

for(var x=0; x<folderList.length; x++){
                    retrieveAllFilesInFolder(folderList[x], function(){
                        var arr = []; 
                        for(var i in fileListObj) { 
                           var d = fileListObj[i].split("/");
                           arr.push({"id": i, "date":(new Date(d[2],d[1]-1,d[0]))}); 
                        }
                        arr.sort(function(a,b) { return a.date < b.date;});
                        console.log(arr); 
                    });
                }

However my output is not sorted bydate.

Object 1 id: "hiddenID1", date: Mon Nov 18 2013 00:00:00 GMT+0000 (GMT Standard Time)
Object 2 id: "hiddenId2", date: Thu Mar 06 2014 00:00:00 GMT+0000 (GMT Standard Time)
Object 3 id: "hiddenId3", date: Thu Sep 05 2013 00:00:00 GMT+0100 (GMT Daylight Time)

Answer 1

You cant sort an object as it contains key value pairs & not serialized items.

You must first construct an array & then sort it.

var obj = {"a" : "21/01/2014", "b" : "06/03/2014"};

var arr = []; 

for(var i in obj) { 

   var d = obj[i].split("/"); 

   arr.push({"id": i, "date":(new Date(d[2],d[1]-1,d[0]))}); 
}

arr.sort(function(a,b) { return a.date.valueOf() > b.date.valueOf();});

The result will be a an array arr sorted by date.

Answer 2

you can't "sort" JSON objects; the only thing you could do would be to get the values into an array and sort the array. i assume the two "hidden id"'s are two distinct fields because your example is not valid JSON.