jq用逗號分隔字串

<script>
var str=new String();
var arr=new Array();
str="ddd,dsd,3,dd,g,k";
arr=str.split(',');//注split可以用字元或字串分割
for(var i=0;i<arr.length;i++)
{
alert(arr[i]);
}
</script>

應用的例項：
//載入函式
$(function () {
if ("<%=information_Id%>" != "") {
$(".information_Person").val("<%=information_Person%>");
$(".information_Title").val("<%=information_Title%>");
$("#ContentPlaceHolder1_product_Img").val("<%=information_Img%>");
$(".sonType_Id").find("option[value='" + <%=sonType_Id%> + "']").attr("selected", true);
//關鍵字
var arr = new Array();
str = "<%=information_Key %>";
arr = str.split(',');//注split可以用字元或字串分割
var a = 0, key = "";
for (var i = 0; i < arr.length; i++) {
a++;
key += "<div class='input-group key_Div'><input class='form-control keyword' type='text' value='" + arr[i] + "' dr='" + a + "' /><span class='input-group-addon add'><i class='glyphicon glyphicon-plus'></i></span><span class='input-group-addon del'><i class='glyphicon glyphicon-minus'></i></span></div>";
}
$(".ff").html(key);
$(".btn_xg").show();
}
});