How do I get the username for an id from a list of ids

Question

When I print my allusers list I get this :

allusers {
           2BrbqqlkVf1NSocm58qr95iL5h2: {…}, 
           7VQMBXdTPIZZZ8ztOLx9JEeRty1: {…}, 
           HNXrFSF3YoT07qapsz3xE9ODGp2: {…}, 
           NwiWN3xDq3awRghWscVBEmxaclB2: {…}, 
           P7P4Vc5hy1ZrYY9YDB5AfNIpQf2: {…},
 …}

each one of the ids look like this :

2BrbbqqlkVf1NSocm58q95iL5h2: {Username: "ee", Email: "ee@gmail.com"}

I have the id stored in candidateid , how do I get the user name? I tried this:

<Button onClick={() => setchosen(candidateid)}>
  <h1>{allusers.candidateid.Username}</h1> 
</Button>

I also tried using .map and it doesn't work

Does this answer your question? [Dynamically access object property using variable](https://stackoverflow.com/questions/4244896/dynamically-access-object-property-using-variable) — , Jul 16 '20 at 09:58

score 1 · Accepted Answer · answered Jul 16 '20 at 10:02

1

You can't use candidateId as a property-access because javascript will try to find a property on allUsers with the literal name candidateId.

What you want to do is:

allusers[candidateId].Username

That uses the value saved in candidateId.

answered Jul 16 '20 at 10:02

Christian

22,585
9
80
106

score 1 · Answer 2 · answered Jul 16 '20 at 10:16

1

You can easily do:

allusers[candidateId].Username

answered Jul 16 '20 at 10:16

tsiwant

11
3

How do I get the username for an id from a list of ids

2 Answers2