JSFiddle - React, Tailwind, and code Playground

HTML

<div id="result"></div>

JavaScript

var people = [];

var result = document.getElementById('result');
var person = { firstName : "John", lastName : "Doe", age : 50, eyeColor : "blue" };
var person1 = { firstName : "Ben", lastName : "", age : 44, eyeColor : "brown" }; 

people.push(person); 
people.push(person1);

for(var i =0; i< people.length; i++){
    result.innerHTML += people[i].firstName + '<br/>';
}