Javascript beginner. Get all properties of javascript object

Question

let's suppose I have the following object:

k = {
  name : 'Sam',
  age : 20,
  interests : " ... "
  friends: " ... "
};

How to get all the objects properties without using the Object.keys() function in the ouptup format:

['name', 'age', 'interests' ...]

Note: don't mark my question as duplicate and provide a link to an answer with the Object.keys() function

Alternative duplicate: https://stackoverflow.com/questions/684672/how-do-i-loop-through-or-enumerate-a-javascript-object — David, May 01 '17 at 11:58

Paul · Accepted Answer · 2017-05-01T12:01:27.710

1

var keys = [];
for (var key in k){
    keys.push(key);
}

For more complicated objects than your example, you may want to check k.hasOwnProperty(key) in that loop before adding it.

edited May 01 '17 at 12:01

answered May 01 '17 at 11:58

Paul

I need the keys but not values – John P May 01 '17 at 12:00
key in this example is the key. I had a typo where I wasn't pushing it but that's corrected. – Paul May 01 '17 at 12:01
thank you! in 5 min I will mark it as an accepted answer – John P May 01 '17 at 12:03

1 Answers1