How do I handle errors in Go?

How do I handle errors in Go?

In Go, errors are handled using the built-in error type. You typically return an error as the last return value from a function.

Can you give me an example of error handling in a function?

Sure! Here's a simple example:

func divide(a, b float64) (float64, error) {
    if b == 0 {
        return 0, fmt.Errorf("cannot divide by zero")
    }
    return a / b, nil
}

What should I do if I encounter an error?

You should check if the error is not nil and handle it appropriately, such as logging it or returning it to the caller.

Are there any best practices for error handling in Go?

Yes, some best practices include using error wrapping, providing context, and avoiding panic unless absolutely necessary.