add: unfinished code. people are having problems

2018-11-13 17:43:25 +03:00
parent 67b20e5755
commit 490223331c
103 changed files with 4218 additions and 3 deletions
--- a/14-arrays/_experimental/_14-arrays/11-project-xratio/02-with-keys/main.go
+++ b/14-arrays/_experimental/_14-arrays/11-project-xratio/02-with-keys/main.go
@@ -0,0 +1,30 @@
+// For more tutorials: https://blog.learngoprogramming.com
+//
+// Copyright © 2018 Inanc Gumus
+// Learn Go Programming Course
+// License: https://creativecommons.org/licenses/by-nc-sa/4.0/
+//
+
+package main
+
+import "fmt"
+
+// REFACTORED VERSION
+// It uses well-defined names instead of magic numbers.
+// Thanks to keyed elements and constants.
+
+func main() {
+	const (
+		ETH = iota
+		WAN
+	)
+
+	rates := [...]float64{
+		ETH: 25.5,
+		WAN: 120.5,
+	}
+
+	// uses well-defined names (ETH, WAN, ...) - good
+	fmt.Printf("1 BTC is %g ETH\n", rates[ETH])
+	fmt.Printf("1 BTC is %g WAN\n", rates[WAN])
+}