“ xml查找”不是功能

I currently have the following ajax call which runs successfully:

$.ajax({
            url: "services/orders/<%=OrderServices.Action.BULK_SUPPLIER_DISCOUNT%>",
            data: params,
            complete: function(xhr) {
                if (ajax.fullCheck(xhr, "delete your selected item")) {
                    unsavedChanges = false;
                }
                var xml = xhr.responseXML;
            updateAutoTotalsFromXml(xml);

            }
        });

variable "xml" returns:

<Response><Totals><FixedCost>0</FixedCost><FixedPrice>0</FixedPrice><VarCost>70.4900</VarCost><VarPrice>224.87</VarPrice></Totals><Success/></Response>

however when i get to here, i get the error Uncaught TypeError: xml.find is not a function.

function updateAutoTotalsFromXml(xml) {
        console.log(xml);
        curFixedCost = parseFloat(xml.find("FixedCost").text());
        curFixedPrice = parseFloat(xml.find("FixedPrice").text());
        curVarCost = parseFloat(xml.find("VarCost").text());
        curVarPrice = parseFloat(xml.find("VarPrice").text());
    }

ideas?

According to jQuery.parseXML():

Parses a string into an XML document.

jQuery.parseXML uses the native parsing function of the browser to create a valid XML Document. This document can then be passed to jQuery to create a typical jQuery object that can be traversed and manipulated.

You can convert the xml to a jqueryObject and only after you can use the find function:

var xml = '<Response><Totals><FixedCost>0</FixedCost><FixedPrice>0</FixedPrice><VarCost>70.4900</VarCost><VarPrice>224.87</VarPrice></Totals><Success/></Response>';

function updateAutoTotalsFromXml(xml) {
  console.log(xml);
  var xmlDoc = $.parseXML(xml);
  var jqObj = $(xmlDoc);
  curFixedCost = parseFloat(jqObj.find("FixedCost").text());
  curFixedPrice = parseFloat(jqObj.find("FixedPrice").text());
  curVarCost = parseFloat(jqObj.find("VarCost").text());
  curVarPrice = parseFloat(jqObj.find("VarPrice").text());

  console.log('curFixedCost: ' + curFixedCost +
              ' curFixedPrice: ' + curFixedPrice +
              ' curVarCost: ' + curVarCost +
              ' curVarPrice: ' + curVarPrice)
}


updateAutoTotalsFromXml(xml);
  

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

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