From 6a315ca521ac710a58ec207e76f13b22eba447d6 Mon Sep 17 00:00:00 2001
From: Alex Kotov <kotovalexarian@gmail.com>
Date: Tue, 17 Nov 2020 09:03:53 +0500
Subject: [PATCH] Add code

---
 4-empty-interface-in-go/Makefile |  2 ++
 4-empty-interface-in-go/main.go  | 18 ++++++++++++++++++
 2 files changed, 20 insertions(+)
 create mode 100644 4-empty-interface-in-go/Makefile
 create mode 100644 4-empty-interface-in-go/main.go

diff --git a/4-empty-interface-in-go/Makefile b/4-empty-interface-in-go/Makefile
new file mode 100644
index 0000000..d476aff
--- /dev/null
+++ b/4-empty-interface-in-go/Makefile
@@ -0,0 +1,2 @@
+all:
+	go run main.go
diff --git a/4-empty-interface-in-go/main.go b/4-empty-interface-in-go/main.go
new file mode 100644
index 0000000..1c86a2d
--- /dev/null
+++ b/4-empty-interface-in-go/main.go
@@ -0,0 +1,18 @@
+package main
+
+import "fmt"
+
+func main() {
+    var i interface{}
+    describe(i)
+
+    i = 42
+    describe(i)
+
+    i = "hello"
+    describe(i)
+}
+
+func describe(i interface{}) {
+    fmt.Printf("(%v, %T)\n", i, i)
+}