json: for in loop

JavaScript

var data = {
   "response" : {
      "HUGHM017" : {
         "FIRST_NAME" : "Matthew",
         "LAST_NAME" : "Hughen"
      },
      "HUGHM041" : {
         "FIRST_NAME" : "Michael",
         "LAST_NAME" : "Hughes"
      },
      "HUGHM018" : {
         "FIRST_NAME" : "Marie",
         "LAST_NAME" : "Hughes"
      }
   },
   "status" : {
      "COUNT" : 3
   }
};
    
    var people = data.response;
    for(var prop in people){
        if (people.hasOwnProperty(prop)){
            console.log(prop);
            console.log(people[prop].FIRST_NAME);
        }
    }
    
    for(let prop of people){
        
            console.log(prop);
            console.log(people[prop].FIRST_NAME);
    }