How does Query.prototype.get() work in Mongoose?

Last Updated : 17 Mar, 2021

The Query.prototype.get() function is used for the update operations, and it returns the value of a path in the update’s $set.

Syntax:

Query.prototype.get()

Parameters: This function has two parameters, one is path parameter and other is optional val parameter to set the value.
Return Value: This function returns Query Object.
Installing mongoose :

npm install mongoose

After installing the mongoose module, you can check your mongoose version in command prompt using the command.

npm mongoose --version

After that, you can just create a folder and add a file for example, index.js as shown below.

Database: The sample database used here is shown below:

Project Structure: The project structure will look like this:

Example 1:

index.js

const mongoose = require('mongoose'); 
  
// Database connection 
mongoose.connect('mongodb://127.0.0.1:27017/geeksforgeeks', { 
    useNewUrlParser: true, 
    useCreateIndex: true, 
    useUnifiedTopology: true
}); 
  
// User model 
const User = mongoose.model('User', {  
    name: { type: String }, 
    age: { type: Number } 
}); 
  
const query = User.updateOne({name:"Gourav"}, 
                             { $set: { name: 'New Gourav' } }); 
console.log("GET Name:",query.get('name'));  

Run index.js file using below command:

node index.js

Output:

GET Name: New Gourav

Example 2:

index.js

const express = require('express'); 
const mongoose = require('mongoose'); 
const app = express() 
  
// Database connection 
mongoose.connect('mongodb://127.0.0.1:27017/geeksforgeeks', { 
    useNewUrlParser: true, 
    useCreateIndex: true, 
    useUnifiedTopology: true
}); 
  
// User model 
const User = mongoose.model('User', {  
    name: { type: String }, 
    age: { type: Number } 
}); 
  
const query = User.updateOne({name:"Gourav"},  
                             { $set: { name: 'Gourav New' } }); 
console.log("GET Name:",query.get('name'));  
  
app.listen(3000, function(error ) { 
    if(error) console.log(error) 
    console.log("Server listening on PORT 3000") 
}); 

Run index.js file using below command:

node index.js

Output:

Server listening on PORT 3000
GET Name: Gourav New

Reference:
https://mongoosejs.com/docs/api/query.html#query_Query-get

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How does Query.prototype.get() work in Mongoose?

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