How to compare two object JSON using AngularJs?

Question

I have two object JSON which having hierachical structure. I need to compare each object inside rowset in JSON. And where ever the value not gettng equal then i have to addd one flag on corresponding object.

Please hava a look at my JSONs and give solution for that. If not angular atleast i have to achieve in Javascript.

Thanks in advance...

JSON1

{"entityinfo":{"entity":"Customer29Jan16","tenantid":"292FEC76-5F1C-486F-85A5-09D88096F098","timestamp":"2015-12-15T10:16:06.322Z"},"collections":{"Customer29Jan16":{"rowset":[{"CuId":"123","Name":"Ranjini","Quantity":"60","Rate":"60","Amount":"3600"}],"meta":{"parentreference":"***","pkname":"***","fkname":"***"},"rowfilter":[]},"Customer29Jan16Obj":{"rowset":[{"CuObjId":"456","FullAddress":"Electronic City","ObjAddr":"Bangalore","ObjName":"Testing"}],"meta":{"parentreference":"***","pkname":"***","fkname":"***"},"rowfilter":[]}}}

JSON2

{"entityinfo":{"entity":"Customer29Jan16","tenantid":"292FEC76-5F1C-486F-85A5-09D88096F098","timestamp":"2015-12-15T10:16:06.322Z"},"collections":{"Customer29Jan16":{"rowset":[{"CuId":"123","Name":"Vijay","Quantity":"60","Rate":"60","Amount":"3600"}],"meta":{"parentreference":"***","pkname":"***","fkname":"***"},"rowfilter":[]},"Customer29Jan16Obj":{"rowset":[{"CuObjId":"456","FullAddress":"SilkBoard","ObjAddr":"Bangalore","ObjName":"Testing"}],"meta":{"parentreference":"***","pkname":"***","fkname":"***"},"rowfilter":[]}}}

What do you mean by adding a flag to the corresponding object? — Sara Fuerst, May 10 '16 at 12:42
You can compare two objects with `angular.equals(obj1, obj2);`. — Arg0n, May 10 '16 at 12:44
Possible duplicate of [Compare objects in Angular](http://stackoverflow.com/questions/20409712/compare-objects-in-angular) — JrBenito, May 10 '16 at 12:51
@JrBenito - I need to get the exact object value of not matching. — bagya, May 10 '16 at 12:56
@tibsar - I want exact non match object value. In this example JSON object Name "Customer29Jan16" , The Name attribute different from another JSON . i need to find out the index to add the flag over there. — bagya, May 10 '16 at 13:00
@Arg0n I want exact non match object value. In this example JSON object Name "Customer29Jan16" , The Name attribute different from another JSON . i need to find out the index to add the flag over there — bagya, May 10 '16 at 13:01

score 6 · Answer 1 · answered May 10 '16 at 12:48

6

Use angular.equals(o1,o2) . It does deep comparison and does not depend on the order of the keys

angular.equals(JSON1, JSON2); // return boolean (true or false) based on the comparison

refer : Angularjs Docs

answered May 10 '16 at 12:48

Shushanth Pallegar

2,832
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It will give either true or false. I want exact non match object value. In this example JSON object Name "Customer29Jan16" , The Name attribute different from another JSON . i need to find out the index to add the flag over there. I hope you're getting my requirement. – bagya May 10 '16 at 12:59
@bagya check out this: http://stackoverflow.com/questions/4465244/compare-2-json-objects You may be able to modify it to meet your needs – Sara Fuerst May 10 '16 at 13:12

score 3 · Accepted Answer · answered May 10 '16 at 13:23

I've made an starting example for you to build on. You can play with it here.

JavaScript

var json1 = {"entityinfo":{"entity":"Customer29Jan16","tenantid":"292FEC76-5F1C-486F-85A5-09D88096F098","timestamp":"2015-12-15T10:16:06.322Z"},"collections":{"Customer29Jan16":{"rowset":[{"CuId":"123","Name":"Ranjini","Quantity":"60","Rate":"60","Amount":"3600"}],"meta":{"parentreference":"***","pkname":"***","fkname":"***"},"rowfilter":[]},"Customer29Jan16Obj":{"rowset":[{"CuObjId":"456","FullAddress":"Electronic City","ObjAddr":"Bangalore","ObjName":"Testing"}],"meta":{"parentreference":"***","pkname":"***","fkname":"***"},"rowfilter":[]}}};

var json2 = {"entityinfo":{"entity":"Customer29Jan16","tenantid":"292FEC76-5F1C-486F-85A5-09D88096F098","timestamp":"2015-12-15T10:16:06.322Z"},"collections":{"Customer29Jan16":{"rowset":[{"CuId":"123","Name":"Vijay","Quantity":"60","Rate":"60","Amount":"3600"}],"meta":{"parentreference":"***","pkname":"***","fkname":"***"},"rowfilter":[]},"Customer29Jan16Obj":{"rowset":[{"CuObjId":"456","FullAddress":"SilkBoard","ObjAddr":"Bangalore","ObjName":"Testing"}],"meta":{"parentreference":"***","pkname":"***","fkname":"***"},"rowfilter":[]}}};

function compareJSON(json1, json2) {
  var objectsDiffering = [];
  compareJSONRecursive(json1, json2, objectsDiffering);
  return objectsDiffering;
}

function compareJSONRecursive(json1, json2, objectsDiffering) {
  for(prop in json1) {
    if(json2.hasOwnProperty(prop)) {
        switch(typeof(json1[prop])) {
        case "object":
            compareJSONRecursive(json1[prop], json2[prop], objectsDiffering);
          break;
        default:
          if(json1[prop] !== json2[prop]) {
            objectsDiffering.push(json1);
          }
          break;
      }
    } 
    else {
      objectsDiffering.push(json1);
      break;
    }
  }
}

var differing = compareJSON(json1, json2);
console.log(JSON.stringify(differing));
//Logs: [{"CuId":"123","Name":"Ranjini","Quantity":"60","Rate":"60","Amount":"3600"},{"CuObjId":"456","FullAddress":"Electronic City","ObjAddr":"Bangalore","ObjName":"Testing"}]

Thanks for your code. Now i have small issue in this. When ever the existing object properties not matching i need to add "operationContext: IsUpdate". The same time whole object not there in JSON1 and is there in JSON2 in that case i need to add "operationContext: IsAdded". I hope you're getting my point. — bagya, May 11 '16 at 07:50
@bagya Add this before `objectsDiffering.push(json1);`. You want to set a property on the object right? — Arg0n, May 11 '16 at 08:02
yes..please have look on fiddle. https://jsfiddle.net/bagya1985/y9efgzh6/2/. This fiddle is working for matching object change. suppose Non-matching object. Where i need to include ""operationContext: IsAdded". — bagya, May 11 '16 at 09:14
@bagya You are setting the property on `json2`, `json1` is the object getting added. Maybe you want to switch this somehow? — Arg0n, May 11 '16 at 10:54
Here i newly added object property in JSON2. I can make it JSON1 or JSON2 that is no issue. but how can i add "operationContext: IsAdded" for newly added object only. please have look my Fiddle link https://jsfiddle.net/bagya1985/y9efgzh6/2/ and JSON2 — bagya, May 11 '16 at 11:02
Please have look my fiddle https://jsfiddle.net/bagya1985/y9efgzh6/3/. I need to add "operationContext: IsAdded" for newly added object only. — bagya, May 12 '16 at 06:39
@bagya I understand that, but since i don't know the logic of your code it would be better if you added this yourself. I gave you code to build on, you have to do some of the work yourself... — Arg0n, May 12 '16 at 06:48

How to compare two object JSON using AngularJs?

2 Answers2