Compare two JSON objects and return the another JSON object with only the change in javascript

{
   "_id":"3fad6024-3226-451b-9e81-1c544aaaebf7",
   "name":"ank agents",
   "aboutUs":"i am about us",
   "agents":[],
   "retailerLanguage":[
      {
         "languageID":"20b4772c-2470-4eaa-bc0c-61429700781c",
         "language":{
            "name":"Korean",
            "__typename":"language"
         }
      },
      {
         "languageID":"9g04da56-0f53-4694-b6dc-0eb5a3aa1988",
         "language":{
            "name":"french",
            "__typename":"language"
         }
      }
   ],
   "termsAndConditions":"not agreed"
   }

{
   "_id":"3fad6024-3226-451b-9e81-1c544aaaebf7",
   "name":"ank retailer part 2",
   "aboutUs":"i am about us",
   "agents":[
      {
         "agentID":"89add463-7cb7-442a-b705-405e03f7e86a"
      },
      {
         "agentID":"1c98d888-6c43-463c-b7ed-79ea8736125f"
      }
   ],
 "retailerLanguage":[
 
  {
     "languageID":"20b4772c-2470-4eaa-bc0c-61429700781c", language: {name: "Korean", __typename: "language"}
  },
   {
     "languageID":"8f04da56-0f53-4694-b6dc-0eb5a3aa2990", language: {name: "Mandarin", __typename: "language"}
  },
   ],

   "termsAndConditions":"agreed"
}

{
   "name":"ank retailer part 2",
   "agents":[
      {
         "agentID":"89add463-7cb7-442a-b705-405e03f7e86a"
      },
      {
         "agentID":"1c98d888-6c43-463c-b7ed-79ea8736125f"
      }
   ],
   "retailerLanguage":[
       {
     "languageID":"8f04da56-0f53-4694-b6dc-0eb5a3aa2990", language: {name: "Mandarin", __typename: "language"}
  },
   ],

   "termsAndConditions":"agreed"
}

 //Function for comparision start here


  var diffParams = {};

  for( var p in obj1 ){
    if ( !compareValue(obj1[p] && obj1[p],obj2[p]&& obj2[p]) ){
      diffParams[p] = obj1[p];
    }
  }
  
  function compareValue(val1, val2){
    var isSame = true;
    for ( var p in val1 ) {
  
      if (typeof(val1[p]) === "object"){
        var objectValue1 = val1[p],
            objectValue2 = val2[p];
        for( var value in objectValue1 ){
          isSame = compareValue(objectValue1[value], objectValue2[value]);
          if( isSame === false ){
            return false;
          }
        }
      }else{
        if(val1 !== val2){
          isSame = false;
        }
      }
    }
    return isSame;
  }

//Function for comparision end here

var d = diffParams
console.log("the activity 146", d)