deletetenders.js

var MongoClient = require('mongodb').MongoClient,
    assert = require('assert');

// Connection URL
var url = 'mongodb://localhost:27017/tender';
// Use connect method to connect to the Server
MongoClient.connect(url, function (err, db) {
    assert.equal(err,null);
        var collection = db.collection("tenders");
            collection.find({}).toArray(function(err,docs){
            assert.equal(err,null);
            console.log("Found:");
            console.log(docs);
        });
	collection.remove({ } ,function(err, result) {
          assert.equal(err,null);
      	});
});