How do you list all properties of an object

You can use the Object.getOwnPropertyNames() method which returns an array of all properties found directly in a given object. Let's see the usage of this in an example below:

const newObject = {
a: 1,
b: 2,
c: 3,
};

console.log(Object.getOwnPropertyNames(newObject));
["a", "b", "c"];