PROSAGA码农传奇-html/HTML5-删除promocode后最终金额不变

<div class =“post-text”itemprop =“text”>
  <P>
    同
     <code>
      $('.support:checked').val()
    </code>
     您可以获取当前所选单选按钮的值。我修改了你的代码以利用它。
  </p>
  <P>
  </p>
  <div class =“snippet”data-lang =“js”data-hide =“false”data-console =“true”data-babel =“false”>
    <div class =“snippet-code”>
       <pre class="snippet-code-js lang-js prettyprint-override">
        <code>
          function myFunction() {
  var discountAmt = [];
  discountAmt[0] = "0";
  discountAmt[1] = "5";
  discountAmt[2] = "10";
  discountAmt[3] = "15";
  var n = $(".checkBoxLabel:checked").length;
  var multiply = 5 * n;
  var totalAmount = $('#totalAmount').html("$" + multiply);
  var discountAmount = $('#discountAmount').html("$" + discountAmt[n]);
  var youPay = $('#youPay').html(discountAmt[n]);
  return [totalAmount, discountAmount, youPay];
}
var $totalCost = 0;
function checkPromocode() {
    if ($('#procode').val().length >= 5) {
      var checkPromocode = $('#procode').val();

$.ajax({
        type: "POST",
        url: baseUrl + "/C_Registration/checkPromocode",
        data: {
          checkPromocode: checkPromocode
        },
        success: function(response) {
          var obj = JSON.parse(response);
          //alert(obj.message);
          var finalAmt = $totalCost;

var codes = myFunction();
          $('#promocodeMessage').html(obj.message);
          var sellingprice = finalAmt - (finalAmt * (obj.discount / 100));
          $('#youPay').html(sellingprice.toFixed(2));

} //END success fn
      }); //END $.ajax
    } else {
        var codes = myFunction();
        //recalculate the value depending on the currently selected radio button
        if ($('.support:checked').val() === '1') {
          var a = codes[2].html();
          var totCost = a * 2;
          $('#youPay').html(totCost);
        } else {
          $('#youPay').html(codes[2].html());
        }
      $('#promocodeMessage').html("Please check your promo code");
    }
}

$(document).ready(function() {

$("#ckbCheckAll").click(function() {
    $(".checkBoxLabel").prop('checked', $(this).prop('checked'));
    var codes = myFunction();
    $('.calculationStrip').show();
    $totalCost = codes[2].html();
    $('#youPay').html(codes[2].html());
  });

$(".checkBoxLabel").change(function() {
    if (!$(this).prop("checked")) {
      $("#ckbCheckAll").prop("checked", false);
    }
  });

/*Customization script here*/
  $('.support').on('click', function() {
    var codes = myFunction();
    if ($(this).val() === '1') {
      var a = codes[2].html();
      var totCost = a * 2;
      $totalCost = totCost;
      $('#youPay').html(totCost);

} else {
      $totalCost = codes[2].html();
      $('#youPay').html(codes[2].html());
    }
    checkPromocode();
  });

$('#procode').keyup(function() {
    checkPromocode();
  });
});
        </code>
      </pre>
       <pre class="snippet-code-html lang-html prettyprint-override">
        <code>
          <ul class="bookList">
  <li><input type="checkbox" class="checkbox_round show_on_click select_all" id="ckbCheckAll">Select All</li>
  <li><input type="checkbox" name="book[]" value="1" class="all_checkbox checkBoxLabel ">Book One </li>
  <li><input type="checkbox" name="book[]" value="2" class="all_checkbox checkBoxLabel "> Book Two</li>
  <li><input type="checkbox" name="book[]" value="3" class="all_checkbox checkBoxLabel"> Book Three</li>
</ul>

<p>suport fields if user choose Yes then it will calculate the total cost mutiply by numbre of books. for example user chose two books then total cost is 10*2=20</p>
<ul>
  <li><input type="radio" name="support" value="1" class="support">Yes</li>
  <li><input type="radio" name="support" value="0" class="support">No</li>
</ul>

<p>Final Amount to pay:- $<span id="youPay"></span> </p>