route parameter in node

To create a route parameter in Node.js, follow these steps:

1. Define the route with a parameter in the Express application using a colon followed by the parameter name, for example, '/users/:userId'.
2. Access the parameter value inside the route handler function using the request object's params property, like req.params.userId.
3. Utilize the parameter value as needed within the route handler function for processing or responding to the request.

I hope this helps!