How can I implement custom validation in Mongoose?

How can I implement custom validation in Mongoose?

You can implement custom validation in Mongoose by using the validate property in your schema definition.

Can you give me an example of a custom validator?

Sure! Here's an example: you can create a custom validator to check if a string is a valid email format.

What if I want to validate a number to be within a specific range?

You can use a custom validator function that checks if the number falls within your desired range.

How do I handle validation errors in Mongoose?

You can handle validation errors by using a try-catch block or by listening to the 'error' event on your model.