JSFiddle - React, Tailwind, and code Playground

by pikitemplates

HTML

<div class='item-all'>
<div class='item-save' data-id='123'>
Save1
</div>
<div class='item-save' data-id='124'>
Save2
</div>
<div class='item-save' data-id='125'>
Save3
</div>
<div class='item-save' data-id='126'>
save4
</div>
</div>
<div class='item-append'>
</div>
<div class='count'>0</div>

CSS

.item-save {
    position: relative;
    display: block;
    font-size: 14px;
    margin: 5px;
    padding: 5px;
    background: #a5a5a5;
    float:left;
    text-align: center;
    cursor: pointer;
}

.productad{background:red;color:#eee}

JavaScript

function createItem(item){
    var elemId = item.data("id");
    var clonedItem = item.clone();
    var newItem = $(`<div data-id="${elemId}"></div>`);
    newItem.append(clonedItem);
    newItem.appendTo('.item-append');
}
function countSaveItems(){
    $('.count').html($(".item-append div.item-save[data-id]").length);
}
$('.item-all .item-save').click(function() {
  $(this).toggleClass('productad')
  window.localStorage.setItem('test_' + this.dataset.id, $(this).hasClass('productad'));
});
$('.item-all .item-save').each(function() {
  var id = 'test_' + $(this).data("id");
  $(this).append(`<button class='close'>Close</button>`);
  if (localStorage.getItem(id) && localStorage.getItem(id) == "true") {
    $(this).addClass('productad');
    createItem($(this));
    countSaveItems();
  }
});
$(".item-all .item-save").click(function() {
  var elemId = $(this).data("id");
  var existing = $(`.item-append div[data-id="${elemId}"]`);
  if (existing.length > 0){
    existing.remove();
  }else{
    createItem($(this));
  }
  countSaveItems();
});
$(".item-append").on("click", ".close", function() {
    var id = $(this).parent().data("id");
    localStorage.removeItem(`test_${id}`);
  $(`.item-save[data-id='${id}']`).removeClass('productad');
    $(this).parent().remove();
  countSaveItems();
});