JSFiddle - React, Tailwind, and code Playground

JavaScript

var a =[
  {
    "NAME": "John Doe",
    "AGE": 25,
    "CITY": "New York",
    "COUNTRY": "USA",
    "GROUP_ID": 1,
    "ACTIVE": 1
  },
  {
    "NAME": "Peter Parker",
    "AGE": 44,
    "CITY": "Los Angeles",
    "COUNTRY": "USA",
    "GROUP_ID": 2,
    "ACTIVE": 1
  }
]
a.forEach(function(item){
delete(item['GROUP_ID']);
delete(item['ACTIVE'])
});
console.log(a)