From b2fb9c90d4cddefd83767c320cf87cc4c8f8f40d Mon Sep 17 00:00:00 2001 From: Alex Kotov Date: Tue, 17 Nov 2020 09:06:29 +0500 Subject: [PATCH] Add code --- 5-type-assertions-in-go/Makefile | 2 ++ 5-type-assertions-in-go/main.go | 19 +++++++++++++++++++ 2 files changed, 21 insertions(+) create mode 100644 5-type-assertions-in-go/Makefile create mode 100644 5-type-assertions-in-go/main.go diff --git a/5-type-assertions-in-go/Makefile b/5-type-assertions-in-go/Makefile new file mode 100644 index 0000000..d476aff --- /dev/null +++ b/5-type-assertions-in-go/Makefile @@ -0,0 +1,2 @@ +all: + go run main.go diff --git a/5-type-assertions-in-go/main.go b/5-type-assertions-in-go/main.go new file mode 100644 index 0000000..0c32ee1 --- /dev/null +++ b/5-type-assertions-in-go/main.go @@ -0,0 +1,19 @@ +package main + +import "fmt" + +func main() { + var i interface{} = "hello" + + s := i.(string) + fmt.Println(s) + + s, ok := i.(string) + fmt.Println(s, ok) + + f, ok := i.(float64) + fmt.Println(f, ok) + + f = i.(float64) // panic + fmt.Println(f) +}