const { MongoClient } = require("mongodb");
const client = new MongoClient("mongodb://localhost:27017");
async function connectToMongo() {
try {
await client.connect();
console.log("Connected to MongoDB");
} catch (err) {
console.error(err);
}
}
async function deleteMany() {
try {
await connectToMongo();
const db = client.db("test");
const collection = db.collection("student");
const query = { roll: 23 };
const result = await collection.deleteMany(query);
console.log("Documents deleted: " + result.deletedCount);