4 ms·

You answered your own question. Call with const isAdmin = true; . . . createUser(user, isAdmin, sendWelcomeEmail)

• rcxdude 5mo ago
  If you swap the order of isAdmin and sendWelcomeEmail you'll get no error from the compiler but now the names will be masking the actual behaviour.
  • arethuza 5mo ago
    Can you imagine how much fun it would be to find that bug?