Get Selected value from Multi-Value Select Boxes by jquery-select2?

I am using Select2 Jquery to bind my dropdown which is used for multiple selection . I am using select2 jquery.

It's working fine, I can bind my dropdown but I need to get the selected value from my multi-value selector. I am looking for method to get value which is supported by select2 Jquery. it might be having a function get selected value.
my drop down binding code

$(".leaderMultiSelctdropdown").select2( {
    maximumSelectionSize: 4
});

alert("Selected value is: "+$(".leaderMultiSelctdropdown").select2("val"));

alternatively, if you used a regular selectbox as base, you should be able to use the normal jquery call, too:

alert("Selected value is: "+$(".leaderMultiSelctdropdown").val());

both return an array of the selected keys.

I know its late but I think you can try like this

$("#multipledpdwn").on("select2:select select2:unselect", function (e) {

    //this returns all the selected item
    var items= $(this).val();       

    //Gets the last selected item
    var lastSelectedItem = e.params.data.id;

})

Hope it may help some one in future.

Returns the selected data in structure of object:

console.log($(".leaderMultiSelctdropdown").select2('data'));

Something like:

   [{id:"1",text:"Text",disabled:false,selected:true},{id:"2",text:"Text2",disabled:false,selected:true}]

Returns the selected val:

console.log($('.leaderMultiSelctdropdown').val());
console.log($('.leaderMultiSelctdropdown').select2("val"));

Something like:

["1", "2"]

Try like this,

jQuery('.leaderMultiSelctdropdown').select2('data');

Simply :

$(".leaderMultiSelctdropdown").val()