</b><p>Select one from the given options:<selectid="select1"><optionvalue="free">Free</option><optionvalue="basic">Basic</option><optionvalue="premium">Premium</option></select></p><p>The value of the option se
<option value="VALUE-aaa" selected> TEXT-aaaaa </option> <option value="VALUE-bbb"> TEXT-bbbbb </option> </select> 1. 2. 3. 4. 5. 6. 7. 8. 原生js获取select标签这个对象: var selectTest = document.getElementById("selectBox"); 然后找到selected的option标签的索引值: var selectIndex ...
var obj = document.getElementById(select_id); for(i=0;i<obj.length;i++){ if(obj[i].value == something) obj[i].selected = true; } 1. 2. 3. 4. 5. 下面给出实例演示: 1、HTML结构 <select id="test"> <option selected value="0">- 请选择 -</option> <option value="1">关羽...
可以使用forEach()方法或for...of循环来遍历选择选项。例如,使用forEach()方法可以这样实现: 代码语言:txt 复制 selectOptions.forEach(function(option) { if (option.selected) { var optionValue = option.value; // 在这里可以对选项的值进行处理或使用 } }); 在循环中,可以通过option.value获取...
function getSelectedOptions(selectbox){ let result = new Array(); for (let option of selectbox.options) { if (option.selected) { result.push(option); } } return result; } 添加选项 可以使用 JavaScript 动态创建选项并将它们添加到选择框。首先,可以使用 DOM 方法,如下所示: let newOption = do...
}for(varj=0; j<uny.length; j++) {//会循环所有option//如果选择第一个,未选择院校,只需要判断option的value是否等于0//如果等于0:未选择,否则就可以通过if(uny[j].selected) {//找到选中的选项//选中了if(uny[j].value==0) {//错误alert("请选择你就读的大学"); ...
find('option:selected').val(); requestParam['loginType'] = loginType!=null && loginType!=undefined ? parseInt(loginType):1; requestParam['merchNo'] = $("#InputMerNo").val()||''; requestParam['userName'] = $("#InputUsername").val()||''; return requestParam; } function other...
这里需要获取多个元素,首先通过id获取select元素,再找到select元素的父元素。因为生成的美化下拉框需要放到父元素中。还要获取到select所有的option子节点。如下所示: //获取下拉框vareSelect = document.getElementById('selectElem');//获取下拉框父节点vareDd =eSelect.parentNode;//获取下拉框选项varaOptions = eSele...
To add a tooltip to a disabled or .disabled element, put the element inside of a <div> and apply the tooltip to that <div> instead. Options Options can be passed via data attributes or JavaScript. For data attributes, append the option name to data-, as in data-animation="". NameTyp...
This option is particularly useful in that it allows you to position the popover in the flow of the document near the triggering element - which will prevent the popover from floating away from the triggering element during a window resize. content string | function '' Default content value if...