這個JavaScript函數如何function reset() {    var customSelect = document.getElementsByClassName("custom-select")[0];    var select = customSelect.getElementsByTagName("select")[0];    var selected = customSelect.getElementsByClassName("select-selected")[0];    var selectedItem = customSelect.getElementsByClassName('same-as-selected')[0];    select.selectedIndex = 0;    selected.innerHTML = select.options[select.selectedIndex].innerHTML;    selectedItem.classList.remove('same-as-selected');}可以轉換成jQuery函數嗎？我試過這樣的第一個變量：  var customSelect = document.getElementsByClassName("custom-select")[0];  var jqcustomSelect = $(".custom-select:eq(0)").html();  console.log(customSelect + "  JQ: " + jqcustomSelect);但我對輸出感到困惑：customSelect = [object HTMLDivElement]盡管jqcustomSelect = html code1）如何轉換此功能？2）為什么customSelect輸出[object HTMLDivElement]，而de輸出html代碼？