How to compare current user id with the id from one collection in firebase using React-CodePudding

I´m trying to compare my current uid with uid from one collection, but im failing could someone please help me?

This is my Code:

    const user1 = auth.currentUser.uid;


const [users, setUsers] = useState([]);

useEffect(() => {
    const usersRef = collection(db, "Admin");
    const q = query(usersRef);
    const unsub = onSnapshot(q, querySnapshot => {
        let users = [];
      querySnapshot.forEach((doc) => {
            users.push(doc.data());
      });
      setUsers(users);
    });
    return () => unsub();
})

  console.log(users);


if(user1 === users.uid){}

CodePudding user response：

The code is showing a list of many users. But a list does not have an id attribute.

The code is trying to compare a list of users to a single user.

Thus, users.uid will not work.

Only a single user object might have an id.

Query for a single user and compare its id along these lines: user1 === user.uid.

CodePudding user response：

In your case here, users is an array so you can't write:

if(user1 === users.uid){}

Instead you need to to find if user1 exists in the users array first and then do the check like this:

const user1Found = users.find(user => user1 === user.uid);
if (user1Found) {}