Real-life: distinct() to dedupe users

Keep only the first user for each id and output the names.

Solve the task in the editor — no long theory.
Run the check and compare your output with the expected result.
Stuck? Open the solution and carry the approach into your own code.

Solution spoiler · click to reveal

const { from, distinct, map } = Rx;

const users = [
  { id: 1, name: 'Ana' },
  { id: 1, name: 'Ana copy' },
  { id: 2, name: 'Bo' },
];

const result$ = from(users).pipe(
  distinct(user => user.id),
  map(user => user.name)
);

result$.subscribe(value => console.log(value));

script.ts // TypeScript

CONSOLE · Console output

Hit Run to see the result...