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How to Remove of MongoDB in Node.js?

  • The remove() method returns an object which contains information about how the execution affected the database.
  • In this, You can delete records, or documents as it is called in MongoDB, by using the remove() method.
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  • The first parameter of the remove() method is a query object defining which documents to delete.
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Example

Remove the record of employee whose address is hussain. Create a js file named "remove.js", having the following code:

remove.js

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: 'hussian' };  
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

Output:

 remove procedure of mongodb in node.js

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Verification

You can check that the record having address "hussain" is deleted and only following records are available now:

 verification of  remove mongodb in node.js remove

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