You can get an array of object keys. Let's see how it's done. Let's have the following object:
let obj = {a: 1, b: 2, c: 3};
Get an array of its keys:
let keys = Object.keys(obj);
Let's output this array to the console:
console.log(keys);
Get an array of keys of the next object:
let obj = {x: 1, y: 2, z: 3};