Node.js MongoDB Drop
Drop Collection
You can delete a table, or collection as it is called in MongoDB, by using
the drop() method.
The drop() method takes a callback function
containing the error object and the result parameter which returns true if the collection was dropped successfully,
otherwise it returns false.
ExampleGet your own Node.js Server
Delete the "customers" table:
var MongoClient = require('mongodb').MongoClient;
var url = "mongodb://localhost:27017/";
MongoClient.connect(url, function(err, db) {
if (err) throw err;
var dbo = db.db("mydb");
dbo.collection("customers").drop(function(err, delOK) {
if (err) throw err;
if (delOK) console.log("Collection
deleted");
db.close();
});
});
Run example »
Save the code above in a file called "demo_drop.js" and run the file:
Run "demo_drop.js"
C:\Users\Your Name>node demo_drop.js
Which will give you this result:
Collection deleted
db.dropCollection
You can also use the dropCollection() method to delete a table (collection).
The dropCollection() method takes two parameters: the name of the collection
and a callback function.
Example
Delete the "customers" collection, using dropCollection():
var MongoClient = require('mongodb').MongoClient;
var url = "mongodb://localhost:27017/";
MongoClient.connect(url, function(err, db) {
if (err) throw err;
var dbo = db.db("mydb");
dbo.dropCollection("customers", function(err, delOK) {
if (err) throw err;
if (delOK) console.log("Collection
deleted");
db.close();
});
});
Run example »
Save the code above in a file called "demo_dropcollection.js" and run the file:
Run "demo_dropcollection.js"
C:\Users\Your Name>node demo_dropcollection.js
Which will give you this result:
Collection deleted
