Get RadioButtonList and CheckBoxList Value using jQuery

This code snippet for Get RadioButtonList and CheckBoxList Value using jQuery inASP.NET.

User code after bind the checkboxlist in C#
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foreach (ListItem item in checkBoxList.Items)
{
item.Attributes.Add("hiddenValue", item.Value);
}
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JQuery
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$(document).ready(function (){
$("#button").click(function (){
$("#ctl00_ContentPlaceHolder1_checkBoxList").val('');
var list=""; var item="";
$("[id*=checkBoxList] input:checked").each(function () {
if(list=='')
list+=$(this).parent().attr('hiddenValue')
else
list+=", "+$(this).parent().attr('hiddenValue')
});
$("#ctl00_ContentPlaceHolder1_txtValue").val(all);
});
$("#addBtn").click(function (){
$("#ctl00_ContentPlaceHolder1_txtRadio").val('');
var item= $('#ctl00_ContentPlaceHolder1_radioButtonList input[type=radio]:checked').val();
$("#ctl00_ContentPlaceHolder1_txtRadio").val(item);
});
});