Add code

2020-11-17 09:03:53 +05:00 · 2020-11-17 09:03:53 +05:00 · 6a315ca521
commit 6a315ca521
parent 0c63b698be
2 changed files with 20 additions and 0 deletions
--- a/4-empty-interface-in-go/Makefile
+++ b/4-empty-interface-in-go/Makefile
@ -0,0 +1,2 @@
+all:
+	go run main.go
--- a/4-empty-interface-in-go/main.go
+++ 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)
+}