Bootstrap 3.3.7 carousel-showmanymoveone禁用对最后一项的克隆

Question

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我是javascript的初学者，现在我轮播中的最后一项是3，我想将其设为8

for (var i=1;i<4;i++) {
  itemToClone = itemToClone.next();

  // wrap around if at end of item collection
  if (!itemToClone.length) {
    itemToClone = $(this).siblings(':first');
  }

  // grab item, clone, add marker class, add to collection
  itemToClone.children(':first-child').clone()
    .addClass("cloneditem-"+(i))
    .appendTo($(this));
}