Trying to sort a custom JavaScript object

You should be able to sort an array of objects, based on the object attributes, by writing a custom sort function like so:

function customSortByPID(a,b) {
  if (a.ProductID > b.ProductID)
  {
      return 1;
  }
  else if (a.ProductID < b.ProductID)
  {
      return -1;
  }
  return 0;
}

Where ProductID is an attribute of your object. You would call it like this:

  myArray.sort(customSortByPID);

That should at least get you started on how to write custom sort functions. Be aware that JavaScript is not strongly typed, which could lead to unexpected sorting behavior (treating an int like a string).

** DISCLAIMER ** I didn't test any of the above, it's just off the top of my head.

First of all, it's really hard to understand the structure of the object. Is this what it looks like?

[
  {  "46913872:2:Size" : 10 },
  {  "46913872:2:Hollow-to-Hem": 57},
  {  "46913872:1:Hips" : "34"}, ...
]

It looks like you want it to sort to

[
  {  "46913872:1:Hips" : "34"}, // all ids are the same here, but this index is 1
  {  "46913872:2:Hollow-to-Hem": 57}, // index is 2 but Hollow comes before Size
  {  "46913872:2:Size" : 10 },
]

The following solution works if I understood your object structure. Like ThatSteveGuy said, you can pass a comparator to your sort method. Since the object is so complicated, this is what you would do

attributes.sort(function(a, b){
  // Make sense of your objects a and b. See the inner function defined below
  var newA = improveObject(a);
  var newB = improveObject(b);

  if (newA.id > newB.id) { return 1; }
  if (newA.id < newB.id) { return -1; }
  // id is the same, check index
  if (newA.index > newB.index) { return 1; }
  if (newA.index < newB.index) { return -1; }
  // index is the same, check name
  if (newA.name > newB.name) { return 1; }
  if (newA.name < newB.name) { return -1; }
  // it's the same thing 
  return 0;

  // Turns {  "46913872:2:Size" : 10 }
  // into {id: 46913872, index: 2, name: "Size", value: 10}
  function improveObject(obj) {
    for (var key in obj) {
      var pieces = key.split(":");
      return {
        id: parseInt(pieces[0]),
        index: parseInt(pieces[1]),
        name: pieces[2],
        value: obj[key];
      };
    }
  }
});

However, the object really doesn't make sense. I would urge you to re-think its structure. Even if I didn't fully understand your object (you should have listed the actual json for the object), the example tells you all you need to know about sorting in js.

You are missing the point of creating objects in the first place if you are putting multiple values in a string separated by a delimiter. The structure should instead be,

cart.attributes = [
    {
        attributes: {
            id: "46913872",
            quantityIterator: 2,
            name: "Dress Color"
        },
        value: "57",
    },
    // repeat for each product
];

Making a function to create an object from the encoded string is trivial. Split the string by ':' and record each part separately.

function makeProduct(key, val) {
    var parts = key.split(':');

    var attrs = {};
    attrs.productId = parts[0];
    attrs.quantityIterator = parts[1];
    attrs.name = parts[2];

    return { attributes: attrs, value: val};
}

Example usage:

makeProduct("46913872:2:Bust", 34); 

returns the object:

{
    attributes: {
        name: "Bust",
        productId: "46913872",
        quantityIterator: "2"
    },
    value: 34
}

A generic way to sort an object by multiple fields is listed in this answer.

Something like this works well, and you can easily define a function to wrap around it and sort jQuery objects given the comparison attribute:

    var $jobj = jQuery( '.jcss' ); // your selector here
    var $jarr = [];

    $jobj.each( function () {
        $jarr.push( jQuery( this ) );
    } );

    $jarr.sort( function ( a, b ) {
        var attr = {}; // your comparison attribute here
        attr.a = parseInt( a.data( 'priority' ) || 0 );
        attr.b = parseInt( b.data( 'priority' ) || 0 );
        return attr.a < attr.b ? -1 : attr.a > attr.b ? 1 : 0;
    } );

    $jobj = jQuery( jQuery.map( $jarr, function ( obj, i ) {
        return obj[0];
    } ) );

    // whatever you need to do here
    $jobj.css( { 'text-decoration': 'blink' } );