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Rename User (Immutable Update)

When updating items inside an array, prefer immutable updates: create a new array and, for the matching item, return a new object with the change. This avoids surprising side effects.

You’ll rename a user identified by id without mutating the input array or any existing user objects.

Your Task

  • Complete renameUser(users: { id: number; name: string }[], id: number, newName: string): { id: number; name: string }[].
  • Return a new array.
  • For the matching user, return a new object with the updated name.
  • Leave all other users unchanged (same references are fine).

Examples

  • renameUser([{ id: 1, name: 'Ada' }], 1, 'Lin') → [{ id: 1, name: 'Lin' }]
  • renameUser([{ id: 1, name: 'Ada' }], 2, 'Lin') → [{ id: 1, name: 'Ada' }]