Reverse object in jQuery.each

Question

HTML:

Answer 1

jsonObj = [];

            $.each(data.reverse(), function (i, dt) {
                jsonObj.push({
                    'id': dt.id
                });

Answer 2

Here's an option that seemed to have worked for me. Hope this helps someone. Obviously only works on simple objects (non-nested) but I suppose you could figure out way to make something more complicated with a little extra work.

var reversed_object = {};
Object.keys(original_object).reverse().forEach(function(key)
{ reversed_object[key] = original_object[key]; });

Answer 3

You can use javascript function sort() or reverse()

var data = $.parseJSON($('#sdata').val());
data.reverse();
$.each(data, function(id, sc) {
alert(id);
}

Answer 4

There is another solution, a fairly easy one:

$(yourobject).toArray().reverse();

That's it.

Answer 5

As it is, you can't in any reliable manner. Because you are enumerating an Object, there is never a guaranteed order.

If you want a guaranteed numeric order, you would need to use an Array, and iterate backwards.

---

EDIT: This will convert your Object to an Array, and do a reverse iteration.

Note that it will only work if all the properties are numeric.

var data = $.parseJSON($('#sdata').val());
var arr = [];

for( var name in data ) {
    arr[name] = data[name];
}
var len = arr.length;
while( len-- ) {
    if( arr[len] !== undefined ) {
        console.log(len,arr[len]);
    }
}

Answer 6

For Objects

If you are dealing with an object, reverse() won't work! Instead you can do this to maintain the order.

$.each(Object.keys(myObj).reverse(),function(i,key){
  var value = myObj[key];
  //you have got your key and value in a loop that respects the order, go rock!
});