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Mongoose | findOneAndDelete() Function

  • Last Updated : 20 May, 2020

The findOneAndDelete() function is used to find a matching document, remove it, and passes the found document (if any) to the callback.

Installation of mongoose module:

  1. You can visit the link to Install mongoose module. You can install this package by using this command.
    npm install mongoose
  2. After installing mongoose module, you can check your mongoose version in command prompt using the command.
    npm version mongoose
  3. After that, you can just create a folder and add a file for example index.js, To run this file you need to run the following command.
    node index.js

Filename: index.js

const mongoose = require('mongoose');
// Database connection
    useNewUrlParser: true,
    useCreateIndex: true,
    useUnifiedTopology: true
// User model
const User = mongoose.model('User', {
    name: { type: String },
    age: { type: Number }
// Find only one document matching the
// condition(age >= 5) and delete it
User.findOneAndDelete({age: {$gte:5} }, function (err, docs) {
    if (err){
        console.log("Deleted User : ", docs);

Steps to run the program:

  1. The project structure will look like this:
  2. Make sure you have installed mongoose module using following command:
    npm install mongoose
  3. Below is the sample data in the database before the function is executed, You can use any GUI tool or terminal to see the database, like we have used Robo3T GUI tool as shown below:
  4. Run index.js file using below command:
    node index.js

  5. After the function is executed, You can see in the database that the particular user is deleted as shown below:
    new Database

So this is how you can use the mongoose findOneAndDelete() function which finds a matching document, removes it, and passes the found document (if any) to the callback.

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