()
| 18 | type list []item |
| 19 | |
| 20 | func (l list) print() { |
| 21 | if len(l) == 0 { |
| 22 | fmt.Println("Sorry. We're waiting for delivery 🚚.") |
| 23 | return |
| 24 | } |
| 25 | |
| 26 | for _, it := range l { |
| 27 | it.print() |
| 28 | } |
| 29 | } |
| 30 | |
| 31 | func (l list) discount(ratio float64) { |
| 32 | for _, it := range l { |