Node.js MongoDB Remove

by Online Tutorials Library July 14, 2022

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.js Remove 1

Verification

You can check that the record having address “Ghaziabad” is deleted and only following records are available now:

Node.js Remove 2

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