JSFiddle - React, Tailwind, and code Playground

JavaScript

var myArray = {};
count = 3
initArray()
showObject()

function initArray(){
  for(var i=1; i< count+1; i++) {
		var newElement = {}
  	newElement.FirstName = "first" + i;
  	newElement.LastName = "last" + i;
    var keyName = "key" + i
    var obj = {};
    myArray[keyName] = newElement
	}
  console.log(myArray);
}

function showObject(){
  for(var i=1; i< count+1; i++) {
		 console.log("key" + i);
     debugger;
     console.log(myArray["key" + i])
	}
}