how to get the first key from 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: get first object key javascript

var example = {
    foo1: { /* stuff1 */},
    foo2: { /* stuff2 */},
    foo3: { /* stuff3 */}
};

let [first] = Object.keys(example)

console.log(first)