Created
February 29, 2020 14:13
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A Tour of Go - Exercise: Stringers
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// https://tour.golang.org/methods/18 | |
package main | |
import "fmt" | |
type IPAddr [4]byte | |
func (ip IPAddr) String() string { | |
return fmt.Sprintf("%d.%d.%d.%d", ip[0], ip[1], ip[2], ip[3]) | |
} | |
func main() { | |
hosts := map[string]IPAddr{ | |
"loopback": {127, 0, 0, 1}, | |
"googleDNS": {8, 8, 8, 8}, | |
} | |
for name, ip := range hosts { | |
fmt.Printf("%v: %v\n", name, ip) | |
} | |
} |
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