errors library explained

error_handling/demo2.go

@@ -0,0 +1,32 @@
+package error_handling
+
+import (
+	"errors"
+	"fmt"
+)
+
+
+func GuessIt(guess int) (string, error){
+
+	number_in_mind := 50 
+
+	if guess < 1 || guess > 100{
+		return "", errors.New("Type a number between 1 and 100 ")
+	}
+
+	if guess > number_in_mind{
+		return "Type a small number", nil
+	}
+
+	if guess < number_in_mind{
+		return "Type a bigger number", nil
+	}
+
+	return "You did it", nil
+}
+
+func Demo2()  {
+	message, error:= GuessIt(101)
+	fmt.Println(message)
+	fmt.Println(error)
+}

go.mod

@@ -1,3 +1,3 @@
 module golesson
 
-go 1.22.0
+go 1.22.1

main.go

@@ -123,4 +123,5 @@ func main() {
 
 	error_handling.Demo1()
 	interfaces.Demo3()
+	error_handling.Demo2()
 }