我们如何为select2添加静态标签

In my application I am using select2 plugin for drop-down with multiple select values. And now I want to add some static option to the select2 drop-down.

<select multiple="" class="test">
   <option value="a">Illustrations</option>
   <option value="b">Maps</option>
   <option value="add">Add Status</option>
</select>

And I am applying multi select, now when I click on add status option I want to do some functionality and this option will not selected as like the option.

And my js code :

$('.test').select2();
$('.test').on("select2-selecting", function(e) { 
   alert($(".test").val());
});

But alert is giving all the selected values a,b,add. But I want to get the 'add' option only.

Please suggest me how can I do this.

Thanks in advance.

Try it with this:

alert($(".test option:selected").val());

Could it be? Or do you need to handle an event at the value 'add'?

$('.test').select2();
$('.test').on("select2:select", function(e) {
    if( $('.test').val()[0] === "add" ) {alert("add")}
    //or search value add
    if($(".test").val().indexOf("add")  > -1) {alert("search add")}
});