Arrange the JSON object according to the date value

Question

Arrange the JSON object according to the date value

I am working on a JavaScript project that involves objects.

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

My goal is to create a new object where the dates are sorted in descending order.

Here's an example of what I want:

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

I have knowledge of how to achieve this with an array, but I'm facing challenges iterating through objects to sort by date.

Any assistance would be greatly appreciated.

UPDATE:

This is my current code snippet.

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, the output is not sorted by date as intended.

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)

javascript json sorting date object

Answer 1

Answer №1

Sorting an object can be tricky because it contains key value pairs, not serialized items.

To sort an object, you first need to create an array and then sort that array accordingly.

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();});

After sorting, the result will be an array arr organized by date.

Answer 2

Sorting an object can be tricky because it contains key value pairs, not serialized items.

To sort an object, you first need to create an array and then sort that array accordingly.

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();});

After sorting, the result will be an array arr organized by date.

Answer 3

Answer №2

In dealing with JSON objects, sorting them directly is not possible. One workaround is to extract the values into an array and then sort that array instead. It seems like the two "hidden id" identifiers are separate fields, as the provided example does not adhere to proper JSON format.

Answer 4

In dealing with JSON objects, sorting them directly is not possible. One workaround is to extract the values into an array and then sort that array instead. It seems like the two "hidden id" identifiers are separate fields, as the provided example does not adhere to proper JSON format.

Arrange the JSON object according to the date value

Answer №1

Answer №2

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