我正在使用引導(dǎo)材料設(shè)計來顯示帶有它們值的下拉列表。我需要使用 JQuery 或任何其他方法清除所選值，因為我嘗試執(zhí)行的操作導(dǎo)致了錯誤。我瀏覽了 md bootstrap 的文檔，但沒有任何運氣。HTML代碼<div class="form-group"> <label for="ddID">Select list:</label> <select id="ddID" class="selectpicker mdb-select md-form" required> <option value="" disabled selected></option> <option value="1">1</option> <option value="2">2</option> <option value="3">3</option> <option value="4">4</option> <option value="5">5</option> </select> </div>查詢**1st attempt**function clear_value() { $('#ddID').removeAttr('required'); $('#ddID').val(''); }**2nd attempt**function clear_value() { $("#ddID").material_select("destroy"); $("#ddID").material_select(); }**3rd attempt**function clear_value() { $('select.mdb-select').materialSelect({ destroy: true }); }**4th attempt**function clear_value() { $(".active").removeClass(); }錯誤Uncaught TypeError: Cannot read property 'setAttribute' of null at Object.applyStyleOnLoad [as onLoad] (applyStyle.js:66) at index.js:69 at Array.forEach (<anonymous>) at new Popper (jq.js:67) at Dropdown.toggle (dropdown.js:176) at HTMLInputElement.<anonymous> (dropdown.js:267) at HTMLInputElement.dispatch (jquery-3.4.1.min.js:2) at HTMLInputElement.v.handle (jquery-3.4.1.min.js:2)
清除材料設(shè)計下拉值會導(dǎo)致錯誤
慕妹3242003
2023-04-01 17:21:23
