access to the first element of javascript object code example

Example 1: javascript object first key

var person = {"name":"Steve","age":43};
var firstKeyValue = person[Object.keys(person)[0]]; //"Steve"

Example 2: javascript get first property of object

var person = { 'first_name': 'Johny', 'last_name':'Carson' };
var firstName=person[Object.keys(person)[0]]; //get first value of object :'Johny'