Node.js MongoDB Remove
In MongoDB, you can delete records or documents by using the remove() method. The first parameter of the remove() method is a query object which specifies the document to delete.
Example
Remove the record of employee whose address is Ghaziabad.
Create a js file named "remove.js", having the following code:
- var http = require('http');
- var MongoClient = require('mongodb').MongoClient;
- var url = "mongodb://localhost:27017/ MongoDatabase";
- MongoClient.connect(url, function(err, db) {
- if (err) throw err;
- var myquery = { address: 'Ghaziabad' };
- db.collection("employees").remove(myquery, function(err, obj) {
- if (err) throw err;
- console.log(obj.result.n + " record(s) deleted");
- db.close();
- });
- });
Open the command terminal and run the following command:
- Node remove.js
Verification
You can check that the record having address "Ghaziabad" is deleted and only following records are available now:
