如何使用JavaScript从下拉列表中获取所选值?
我try 了下面的方法,但它们都返回选定的索引而不是值:
var e = document.getElementById("ddlViewBy");
function show(){
var as = document.forms[0].ddlViewBy.value;
var strUser = e.options[e.selectedIndex].value;
console.log(as, strUser);
}
e.onchange=show;
show();
<form>
<select id="ddlViewBy">
<option value="1">test1</option>
<option value="2" selected="selected">test2</option>
<option value="3">test3</option>
</select>
</form>