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Jquery: Removing dynamically generated element when modal confirmation button is clicked

For example:

<body>

    <div class="container">
      <!-- Generated by ajax -->
      <div class="item" id="item_1">
        <span class="remove-item"></span>
      </div>
      <div class="item" id="item_2">
        <span class="remove-item"></span>
      </div>
    </div>


    <div class="modal" id="removeItemModal">
        <h3>Are you sure you want to remove?</h3>
        <input type="hidden" id= "removeItemIdModalInput">
        <button type="button">Cancel</button>
        <button type="button" id="remove-confirm-btn">Confirm</button>
     </div>

</body>

When clicked on the remove-item class a modal will be shown with two button Confirm and Cancel when user clicks on confirm, remove the whole (parent) item. How can i achieve this?? Here's what i did:

$(document).on("click",".remove-item", function (e) {

        var removeProductId = $(this).closest(".item").attr("id");

        // Setting the value in modal's hidden input
        $("#removeItemIdModalInput").val(removeProductId);

        $("removeItemModal").modal('toggle');

    });

$(document).on("click","#remove-confirm-btn", function (e) {

        var removeProductId = $("#removeItemIdModalInput").val();

        $("removeItemModal").modal('toggle');

        // Removing the container div/item
        $(removeProductId).fadeOut(300,function () { $(this).remove();});


    });

But It's not working. Why? Is there a better approach?

[EDIT]
TS wants a modal window, this answer provides an alternative


Instead of a modal window, you can use confirm() too.

If that is confirmed, you select the parent of the span, by using parent() , fade that element out, and remove. Just like you already had.

Also note that you use remove-item and remove_item both, I changed it all to remove_item

 $(document).on("click", ".remove_item", function(e) { if(confirm("Do you want to remove this box")) { $(this).parent().fadeOut(300, function () { $(this).remove();}); } return; });
 #item_1, #item_2 { border: 1px solid black; margin: 2em; } .remove_item { background: red; }
 <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <div> <!-- Generated by ajax --> <div id="item_1"> Item 1 <span class="remove_item">remove</span> </div> <div id="item_2"> Item 2 <span class="remove_item">remove</span> </div> </div>

Here's what solved my problem:

$(document).on("click","#remove-confirm-btn", function (e) {

        var removeProductId = $("#removeItemIdModalInput").val();

        $("removeItemModal").modal('toggle');

        // Changed here
        $("body").find(removeProductId).fadeOut(300,function () { $(this).remove();});


    });

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