Removes a field with a value of NULL, Undefined, "" in the object

functionRemoveemptyfield (obj) {varNEWOBJ = {}; if(typeofobj = = "string") {obj=json.parse (obj); }        if(objinstanceofArray) {NEWOBJ= []; }        if(objinstanceofObject) {             for(varattrinchobj) {                if(Obj.hasownproperty (attr) && obj[attr]!== "" && Obj[attr]!==NULL&& Obj[attr]!==undefined) {                    if(Obj[attr]instanceofObject) {Newobj[attr]=Removeemptyfield (obj[attr]); }Else if(typeofOBJ[ATTR] = = "string" && ((Obj[attr].indexof ("{") >-1 && obj[attr].indexof ("}") >-1) | | (Obj[attr].indexof ("[") >-1 && obj[attr].indexof ("]") >-1))){                        Try{                            varAttrobj =Json.parse (obj[attr]); if(AttrobjinstanceofObject) {Newobj[attr]=Removeemptyfield (attrobj); }                        }Catch(e) {newobj[attr]=Obj[attr]; }                    }Else{newobj[attr]=Obj[attr]; }                }            }        }        returnNEWOBJ; }

Object-to-string removal of invalid fields

function Stringifynoemptyfield (obj) {        var newObj = Removeemptyfield (obj);          for (var in newObj) {            ifinstanceof  Array) {                = json.stringify (newobj[attr]);            }        }         return json.stringify (NEWOBJ);    }

Removes a field with a value of NULL, Undefined, "" in the object