18 lines
408 B
Go
18 lines
408 B
Go
package greetings
|
|
|
|
import (
|
|
"errors"
|
|
"fmt"
|
|
)
|
|
|
|
// Hello returns a greeting for the named person.
|
|
func Hello(name string) string {
|
|
// If no name was given, return an error with a message.
|
|
if name == "" {
|
|
return "", errors.New("empty name")
|
|
}
|
|
|
|
// Return a greeting that embeds the name in a message.
|
|
message := fmt.Sprintf("Hi, %v. Welcome!", name)
|
|
return message, nil
|
|
}
|