Exercises & activities from the go workshop provided by Packt: https://courses.packtpub.com/courses/go
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
46 lines
714 B
46 lines
714 B
package main
|
|
|
|
import (
|
|
"fmt"
|
|
"os"
|
|
)
|
|
|
|
func getPassedArgs(minArgs int) []string {
|
|
|
|
if len(os.Args) < minArgs {
|
|
fmt.Printf("At least %v arguments are needed\n", minArgs)
|
|
os.Exit(1)
|
|
}
|
|
|
|
var args []string
|
|
for i := 1; i < len(os.Args); i++ {
|
|
args = append(args, os.Args[i])
|
|
}
|
|
|
|
return args
|
|
|
|
}
|
|
|
|
func findLongest(args []string) string {
|
|
|
|
var longest string
|
|
for i := 0; i < len(args); i++ {
|
|
if len(args[i]) > len(longest) {
|
|
longest = args[i]
|
|
}
|
|
}
|
|
|
|
return longest
|
|
|
|
}
|
|
|
|
func main() {
|
|
|
|
if longest := findLongest(getPassedArgs(3)); len(longest) > 0 {
|
|
fmt.Println("The longest word passed was:", longest)
|
|
} else {
|
|
fmt.Println("There was an error")
|
|
os.Exit(1)
|
|
}
|
|
|
|
}
|