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

Last Updated : 17 Mar, 2021

The Query.prototype.intersects() function is used to declare an intersects query for geometry(). This function is widely used with geometry function.
Syntax:

Query.prototype.intersects()

Parameters: This function has one arg parameter of the Object type.
Return Value: This function returns Query Object.

Installing mongoose:

npm install mongoose

After installing the mongoose module, you can check your mongoose version in the 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:

javascript

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.find(); 
query.where('path').intersects().geometry({ 
    type: 'LineString'
  , coordinates: [[180.0, 11.0], [180, 9.0]] 
}) 
  
console.log(query._conditions) 

Run index.js file using below command:

node index.js

Output:

{ path: { '$geoIntersects': { '$geometry': [Object] } } }

Example 2:

javascript

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.find(); 
query.where('path').intersects().geometry({ 
    type: 'LineString'
  , coordinates: [[181.0, 12.0], [181, 10.0]] 
}) 
  
console.log(query._conditions) 
  
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
{ path: { '$geoIntersects': { '$geometry': [Object] } } }

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

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