What are some examples of try-catch in TypeScript?

What are some examples of try-catch in TypeScript?

In TypeScript, try-catch is used for error handling. Here's a simple example:

try {
    // Code that may throw an error
    let result = riskyFunction();
} catch (error) {
    console.error('Error occurred:', error);
}

Can you show me a more complex example?

Sure! Here's a more complex example that includes custom error handling:

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

function riskyFunction() {
    throw new CustomError('Something went wrong!');
}

try {
    riskyFunction();
} catch (error) {
    if (error instanceof CustomError) {
        console.error('Custom error caught:', error.message);
    } else {
        console.error('General error caught:', error);
    }
}

What happens if I don't use try-catch?

If you don't use try-catch, any error thrown will cause the program to terminate, and you'll see an unhandled exception message.

Are there any best practices for using try-catch?

Yes! Some best practices include:

1. Only wrap code that may throw an error.
2. Avoid using try-catch for control flow.
3. Log errors for debugging purposes.