Javascript: Sharepoint Column Mapping Config and self executable function

Javascript: Sharepoint Column Mapping Config and self executable function

var MAP = (function() {
     var private = {
           
        'RESOURCE':                 {
                                        "ResourceID"                : "ows_ID",
                                        "AllocationRole"            : "ows_ResourceRole1",
                                        "ResourceEmployee"          : "ows_ResourceEmployee1",
                                        "ResourceDepartment"        : "ows_ResourceDepartment1",
                                        "ResourceJobGroup"          : "ows_ResourceJobGroup1",
                                        "ResourceStartDate"         : "ows_ResourceStartDate1",
                                        "ResourceEndDate"           : "ows_ResourceEndDate1",
                                        "ResourceAllocatedTime"     : "ows_ResourceAllocatedTime1",
                                        "ResourceTariff"            : "ows_ResourceTariff1",
                                        "ResourceTravelTraining"    : "ows_ResourceTravelTraining1",
                                        "ResourceBgtCost"           : "ows_ResourceBgtCost1",
                                        "ResourceTotalAnnualHours"  : "ows_ResourceTotalAnnualHour1",
                                    },

        'ACTIVITY_BREAKDOWN' :      {
                                        "ActivityBreakdownID"   : "ows_ID",
                                        "ActivityType"          :  "ows_ActivityType",  
                                        "ActivitySubType"       : "ows_ActivitySubType", 
                                        "Role"                  : "ows_Role",  
                                        "Description"           : "ows_Description"
                                    }
      
     };

    return {
        get: function(name) { return private[name]; }
    };
})();

//usage
var resourceMapping = MAP.get('RESOURCE');