结果数据的意义

I have this already written code by someone else to add new value on UI.Its using Java Script, AJAX and Json which I am totally new to.

I am not getting how they are fetching the variable resultData in done(function())

Code snippet is:

$.ajax(url, {
        cache : false,
        dataType: 'json',
        data : {
            depth: 10,
            readSystemFields: true,
            recordStates :'ACTIVE,PENDING'
        }
    }).done(function(resultData)

They are using it to get some values like:

$("#componentSectionFieldValue" +  {{rowidObject}} + (i + "" +j) + "b2bFinancial" ).append( $('<a />').attr('href', 'mailto:' + mdm.entity360view.helperUtil.getData(**resultData**, 
mdm.entity360view.ConfigContour.widgets.b2b.financal.section[i].field[j].coValue,
 mdm.entity360view.ConfigContour.widgets.b2b.financal.section[i].field[j].defaultValue,
 mdm.entity360view.ConfigContour.widgets.b2b.financal.section[i].field[j].defaultKey, mdm.entity360view.ConfigContour.widgets.b2b.financal.section[i].field[j].defaultKeyValue, 
mdm.entity360view.ConfigContour.widgets.b2b.financal.section[i].field[j].coFieldValues, 
mdm.entity360view.ConfigContour.widgets.b2b.financal.section[i].field[j].concatenateWith,  
mdm.entity360view.ConfigContour.widgets.b2b.financal.section[i].field[j].getStrategy) ).text(mdm.entity360view.helperUtil.getData(resultData, 
mdm.entity360view.ConfigContour.widgets.b2b.financal.section[i].field[j].coValue, 
mdm.entity360view.ConfigContour.widgets.b2b.financal.section[i].field[j].defaultValue, 
mdm.entity360view.ConfigContour.widgets.b2b.financal.section[i].field[j].defaultKey, 
mdm.entity360view.ConfigContour.widgets.b2b.financal.section[i].field[j].defaultKeyValue, 
mdm.entity360view.ConfigContour.widgets.b2b.financal.section[i].field[j].coFieldValues, 
mdm.entity360view.ConfigContour.widgets.b2b.financal.section[i].field[j].concatenateWith,  
mdm.entity360view.ConfigContour.widgets.b2b.financal.section[i].field[j].getStrategy)) );

This is a very good resource to see how done works with jquery ajax.

jqXHR.done(function( data, textStatus, jqXHR ) {}); An alternative construct to the success callback option, refer to deferred.done() for implementation details.

Then go through the documentation on done().

Since the jQuery.get method returns a jqXHR object, which is derived from a Deferred object, we can attach a success callback using the .done() method.

$.get( "test.php" ).done(function() {
  alert( "$.get succeeded" );
});

Hope this helps to get you started.