Find in JSON

findInJSON.js

const data = [
  { "id": "1", "firstname": "Friendly", "lastname": "Glenn" },
  { "id": "5", "firstname": "Ifits", "lastname": "Friendly" },
  { "id": "24", "firstname": "Mya", "lastname": "Crotch" },
  { "id": "81", "firstname": "Glenn", "lastname": "Tipton" },
  { "id": "23", "firstname": "Friendly", "lastname": "Dude" },
];

/* -----------------------------------------
  Object extension:
  Filters out json to find a specified value 
  in any of the key / value pairs
  ------------------------------------------*/
Object.prototype.valueFind = function(val) {
  return this.filter( obj => {
    return Object.values(obj).find( item => item == val )
  })
}

console.log(data.valueFind('Friendly'))