如何檢索3天前的文檔？

Question

如何檢索3天內（從發佈日期起）的所有文檔？

東西類似於SQL給定： Checking if date is more than 3 years old in PostgreSQL

SELECT * FROM foos WHERE date < '3 days'::interval; 

Answer 1

db.collection.find({created_at : {$gt : <fill in the date of the day before three days back in the right format> }) 

應該工作