1、var option = new Option(text,value); //这里要大写Option() 2、var option = new Option(); option.text = text; option.value=value; 我个人比较喜欢第一种方法来创建option对象。 另外,select标记还有一个比较有用的属性就是selectedIndex,通过它可能获取当前选择的option索引,或通过索引设置指定options集...
<option value="banana">Banana</option> <option value="cherry">Cherry</option> </select> <button onclick="getSelectedValues()">Get Selected Values</button> <script> function getSelectedValues() { var selectElement = document.getElementById('myMultiSelect'); var selectedValues = Array.from(se...
</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...
();// Get all the cells from the currently selected range to the bottom-most edge of the used range.// This method acts like the Ctrl+Shift+Down arrow key keyboard shortcut while a range is selected.letextendedRange = range.getExtendedRange( direction, activeCell ); extendedRange.select(...
ExecQuery("SELECT * FROM Win32_BaseBoard"); var e = new Enumerator(properties); var info = "<table border=1>"; info += "<tr bgcolor='#CDEDED' style='font-weight: bold;'><td width='450'>主板信息 </td></tr>"; for (; !e.atEnd(); e.moveNext()) { var p = e.item();...
string strSelectStart = "<select id=friendLink name=friendLink style=width:275px;height:27px; onChange=javascript:GetValue(); >"; if (type == "0") { link = strSelectStart + "<option selected=selected>---友情链接---</option>"; } else { link...
from.remove(i); 4、Select里Option的上下移动 functionfnUp() { varsel=document.getElementById("selID"); for(vari=1; i<sel.length; i++) {//最上面的一个不需要移动,所以直接从i=1开始 if(sel.options[i].selected) { if(!sel.options.item(i-1).selected) ...
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...
Alternatively, use the Ctrl+Shift+I shortcut on Windows or Linux, and Option+Command+I on macOS. Select the Elements tab and select the Styles tab. Select the <body> element. In the Styles tab, look at the applied theme. If the current theme is dark, the dark-theme styles are ...
{ "type" : "select", "options" : { "us" : "USA", "ca" : "Canada", "de" : { "selected" : "selected", "html" : "Germany" } } } Generates: <select> <option value="us">USA</option> <option value="ca">Canada</option> <option value="de" selected="selected">Germany</op...