golang diff of string arrays
package main import "fmt" func difference(slice1 []string, slice2 []string) []string { var diff []string // Loop two times, first to find slice1 strings not in slice2, // second loop to find slice2 strings not in slice1 for i := 0; i < 2; i++ { for _, s1 := range slice1 { found := false for _, s2 := range slice2 { if s1 == s2 { found = true break } } // String not found. We add it to return slice if !found { diff = append(diff, s1) } } // Swap the slices, only if it was the first loop if i == 0 { slice1, slice2 = slice2, slice1 } } return diff } func main() { slice1 := []string{"foo", "bar", "hello"} slice2 := []string{"foo", "world", "bar", "foo"} fmt.Printf("%+v\n", difference(slice1, slice2)) }
