sd

book_with_bridge/comon_shit/main.go

@@ -2,16 +2,15 @@ package main
 
 import "fmt"
 
-func join(srt ...string) string {
-	res := ""
-	for _,s := range srt {
-		fmt.Println(s)
-		res = res + s + " "
+func square() func () int {
+	var x int
+	return func() int {
+		x++
+		return x*x
 	}
-	return res
 }
-
 func main() {
-	// s := []string{"lol","kik"}
-	fmt.Println(join("lol","kek"))
+	f := square()
+	fmt.Println(f())	
+	fmt.Println(f())	
 }