在javascript中传递数组值
我有一份小组名单:在javascript中传递数组值,javascript,ajax,Javascript,Ajax,我有一份小组名单: <select multiple="multiple" name="groups[]" id="groups[]" class="myclass"> <option value="1">Employee</option> <option value="2">Suppliers</option> <option value="3">Customers</option>
<select multiple="multiple" name="groups[]" id="groups[]" class="myclass">
<option value="1">Employee</option>
<option value="2">Suppliers</option>
<option value="3">Customers</option>
</select>
雇员
供应商
客户
我正在使用下面的代码将组传递到ajax url,但只传递了一个组
<Script>
groups=document.getElementById("groups[]").options.item(addIndex).value;
xmlHttp.open("POST","?action=ajaxcontac&groups="+ groups,true);
</Script>
groups=document.getElementById(“groups[]”).options.item(addIndex).value;
xmlHttp.open(“POST”,“action=ajaxcontac&groups=“+groups,true”);
如何将多个组传递到url
谢谢尝试此解决方案:
演示
var opts = document.querySelectorAll("#groups\\[\\] option"),
groups = [].map.call(opts, function(option) {
if (option.selected) {
return "groups[]=" + option.value;
}
}).filter(Boolean).join("&");
xmlHttp.open("POST", "?action=ajaxcontac&" + groups, true);