Initial commit

15-slices/03-slices-vs-arrays/02-with-slices/main.go

@@ -0,0 +1,43 @@
+// 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 (
+	"math/rand"
+	"os"
+	"strconv"
+	"time"
+
+	s "github.com/inancgumus/prettyslice"
+)
+
+func main() {
+	rand.Seed(time.Now().UnixNano())
+
+	max, _ := strconv.Atoi(os.Args[1])
+
+	// declare an uninitialized nil slice
+	var uniques []int
+
+loop:
+	// you can still use the len function on a nil slice
+	for len(uniques) < max {
+		n := rand.Intn(max + 1)
+
+		for _, u := range uniques {
+			if u == n {
+				continue loop
+			}
+		}
+
+		// let's grow the slice by appending
+		uniques = append(uniques, n)
+	}
+
+	s.Show("Uniques", uniques)
+}