javascript - How to delete a message in mongoDB using js

Question

1. mongoDB stores articles

2. A message has time, title, content, publisher and _id

3. Using JavaScript

4. The express framework of node.js used

5. Please post the code Thank you

Answer 1

May I ask what middleware the poster uses to operate mongodb? Here I will write it according to mongoose:

//因为不清楚楼主想要通过什么条件进行删除，通过id肯定不靠谱
//这里通过作者和文章标题进行查询并删除，使用的是findOne值查询一个
Passage.findOneAndRemove({author:"LiMing",title:"helloworld"}).exec();

Answer 2

db.person.remove(“name”:"ziling")

增
db.collection("tb2").insert([{"name":"wilson001","age":21},{"name":"wilson002"},{"age":22}],function(err,result){})
删
db.collection("tb2").remove({"name":"wilson002"},function(err,result){});
改
db.collection("tb2").update({"name":"wilson001"},{$set:{"age":100}},function(err,result){});
查
db.collection("tb2").find({"name":"wilson001"}).toArray(function(err,result){});