When should I use custom errors in JavaScript?

When should I use custom errors in JavaScript?

You should use custom errors in JavaScript when you want to create more meaningful error messages that are specific to your application.

Can you give me an example of a custom error?

Sure! You can create a custom error by extending the built-in Error class. For example:

class ValidationError extends Error {
    constructor(message) {
        super(message);
        this.name = 'ValidationError';
    }
}

What are the benefits of using custom errors?

Custom errors help in identifying specific error types, improving debugging, and providing clearer error messages to users.

Are there any downsides to using custom errors?

One downside is that it can add complexity to your codebase. If overused, it might make error handling more cumbersome.