What are the best practices for error handling in TypeScript?

What are the best practices for error handling in TypeScript?

In TypeScript, it's important to use try-catch blocks for synchronous code and to handle promises with .catch() for asynchronous code. Additionally, you should define custom error types to provide more context.

Can you explain how to create custom error types?

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

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

What about logging errors? Any recommendations?

Yes, logging is crucial. Use a logging library like Winston or Pino to capture error details and stack traces. Ensure you log errors at appropriate levels (info, warn, error) based on their severity.

How can I ensure that my error handling is consistent across my application?

To ensure consistency, create a centralized error handling middleware in your application. This way, all errors can be processed in one place, allowing for uniform logging and response formatting.