Using MongoDB $pull to delete documents within an Array
问题 I have a collection in MongoDB, which is like following: { "_id" : "5327010328645530500", "members" : [ { "participationCoeff" : 1, "tweetID" : "5327010328645530500" }, { "participationCoeff" : 1, "tweetID" : "2820402625046999289" }, { "participationCoeff" : 0.6666666666666666, "tweetID" : "6122060484520699114" }, { "participationCoeff" : 1, "tweetID" : "4656669980325872747" } ] } { "_id" : "2646953848367646922", "members" : [ { "participationCoeff" : 1, "tweetID" : "2646953848367646922" }, {