How do I count online users in Firebase?

Question

I have a mini chat app! Users can't able to see how many people are using the app! I tried a lot! So, I need to show the number of people! How do I come up with?
This is my code:
https://code.sololearn.com/WLaG3nAnA4bF/?ref=app

Answer 1

It really depends on the structure.
The standard way is using numChildren() in class DataSnapShot.
Read more: https://firebase.google.com/docs/reference/js/firebase.database.DataSnapshot.html#numChildren
Good luck on developing that nice app

Answer 2

Seniru Pasan bro would be better if you make the code! Plz!

Answer 3

Arb Rahim Badsa I tried this one
msgRef.once("value").then((snap)=>{
snap.forEach((user)=>{
console.log((user)); //i cant find what is inside
})
console.log(snap.numChildren());
});
You can get the names of all the user if can provide the user properties

Answer 4

Seniru Pasan problem solved bro!!! Thanks for your answer !!

Answer 5

Arb Rahim Badsa can u give the ref to the active users