Database api doesn't seem to be returning correct data

From the supabase-js Docs the function should be like this

const { data, error } = await supabase
  .from('countries')
  .select()

const { data, error } = await supabase
  .from('countries')
  .select()

const { data, error } = await supabase
  .from('countries')
  .select()

const { data, error } = await supabase
  .from('countries')
  .select()

though it seems like something has changed because it doesn't return neither data nor error
https://supabase.com/docs/reference/javascript/select

Supabase Documentation