How to detach firebase Realtime listeners?-CodePudding

I'm using the firebase real-time database version 9, and I use this method to retrieve back data:

const refList= ref(
  db,
  `users/${uid}`
);
onValue(refList, (snapshot) => {
  let allData = snapshot.val() === null ? [] : snapshot.val()
});

So this is real-time communication therefore this ref has to use a listener. I checked their documentation, they say to use the off() method onto the ref without any code examples.

refList.off()

Will this remove the listener?

CodePudding user response：

The onValue call now returns a function that (when called) removes the listener. So:

const unsubscribe = onValue(refList, (snapshot) => {
  let allData = snapshot.val() === null ? [] : snapshot.val()
});

And then later:

unsubscribe();