//获取select下拉框Option的Value值:document.form1.testvalue.value//获取select下拉框Option的Text值:document.form1.testvalue.options[document.form1.testvalue.selectedIndex].text
<select id=”test” name=””> <option value=”1″>text1</option> <option value=”2″>text2</option> </select> code: 一:javascript原生的方法 1:拿到select对象: var myselect=document.getElementById(“test”); 2:拿到选中项的索引:var index=myselect.selectedIndex ; // selectedIndex代表的...
let selectElement = document.getElementById('myMultiSelect'); let selectedValues = Array.from(selectElement.options).filter(option => option.selected).map(option => option.value); 2. 使用querySelectorAll和Array.from 还可以使用CSS选择器配合querySelectorAll来直接找到所有被选中的option元素,然后将它...
</title></head><body><h1style="color: green">GeeksforGeeks</h1><b>How to get selected value in dropdown list using JavaScript?</b><p>Select one from the given options:<selectid="select1"><optionvalue="free">Free</option><optionvalue="basic">Basic</option><optionvalue="premium">Pr...
window.document.getElementById("bigclass").selectedIndex 的结果是:1 一、新增一个option var sel=document.getElementById("select的id"); var op=document.createElement("option"); op.value=值; op.text=显示文本; sel.add(op); 二、删除一个option ...
<option value="banana">Banana</option> <option value="cherry">Cherry</option> </select> <button onclick="getSelectedValue()">Get Selected Value</button> <script> function getSelectedValue() { var selectElement = document.getElementById('mySelect'); ...
window.document.getElementById("bigclass").selectedIndex 的结果是:1 一、新增一个option var sel=document.getElementById("select的id"); var op=document.createElement("option"); op.value=值; op.text=显示文本; sel.add(op); 二、删除一个option ...
window.document.getElementById("bigclass").selectedIndex 的结果是:1 一、新增一个option var sel=document.getElementById("select的id"); var op=document.createElement_x("option"); op.value=值; op.text=显示文本; sel.add(op); 二、删除一个option ...
For data attributes, append the option name to data-, as in data-parent="". Nametypedefaultdescription parent selector false If a selector is provided, then all collapsible elements under the specified parent will be closed when this collapsible item is shown. (similar to traditional accordion...
For data attributes, append the option name to data-, as in data-parent="". Nametypedefaultdescription parent selector false If a selector is provided, then all collapsible elements under the specified parent will be closed when this collapsible item is shown. (similar to traditional accordion...