Family Day update

Task/Empty-string/Go/empty-string-2.go

@@ -0,0 +1,23 @@
+package main
+
+import (
+	"fmt"
+)
+
+func test(s string) {
+	if len(s) == 0 {
+		fmt.Println("empty")
+	} else {
+		fmt.Println("not empty")
+	}
+}
+
+func main() {
+	// assign an empty string to a variable.
+	str1 := ""
+	str2 := " "
+	// check if a string is empty.
+	test(str1) // prt empty
+	// check that a string is not empty.
+	test(str2) // prt not empty
+}