What are some examples of error handling in Go?

What are some examples of error handling in Go?

In Go, error handling is done using the built-in error type. For example, when opening a file, you can check for errors like this:

file, err := os.Open("file.txt")
if err != nil {
    log.Fatal(err)
}

Can you explain how to create a custom error in Go?

Sure! You can create a custom error by implementing the Error() method. Here's an example:

type MyError struct {
    Message string
}

func (e *MyError) Error() string {
    return e.Message
}

What should I do if I encounter a panic in my Go application?

If you encounter a panic, you can recover from it using the recover function within a deferred function. Here's how:

default func() {
    if r := recover(); r != nil {
        fmt.Println("Recovered from panic:", r)
    }
}()