Receivers

d is the instance. Similar to self in python,

Convention of instance is normally lowercase letters.

When to use a receiver?

• It depends
• You need to determine firsr the function signature
• For example, if you want to execute instance.print() you must use a receiver

func (d deck) print() {
    for i, card := range d {
        fmt.Println(i, card)
    }
}

Other format

If the instance will not be used.

func (eb englishBot) getGreeting() string {
    return "Hi there!"
}

You can ommit the variable and do it this way.

func (englishBot) getGreeting() string {
    return "Hi there!"
}