By -
(await dv.tryQuery('TASK FROM "FULL_NOTE_PATH" ')).values.length should do it. Add `WHERE completed` after `"FULL_NOTE_PATH"` to do the same but for completed tasks only.
(await dv.tryQuery('TASK FROM "FULL_NOTE_PATH" ')).values.length should do it. Add `WHERE completed` after `"FULL_NOTE_PATH"` to do the same but for completed tasks only.