restructure: arrays and slices

16-slices/05-append/1-theory/main.go

@@ -0,0 +1,39 @@
+// 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 (
+	s "github.com/inancgumus/prettyslice"
+)
+
+func main() {
+	nums := []int{1, 2, 3}
+	s.Show("nums", nums)
+
+	_ = append(nums, 4)
+	s.Show("nums", nums)
+
+	nums = append(nums, 4)
+	s.Show("nums", nums)
+
+	nums = append(nums, 9)
+	s.Show("nums", nums)
+
+	nums = append(nums, 4)
+	s.Show("nums", nums)
+
+	// or:
+	// nums = append(nums, 4, 9)
+	// s.Show("nums", nums)
+
+	nums = []int{1, 2, 3}
+	tens := []int{12, 13}
+
+	nums = append(nums, tens...)
+	s.Show("nums", nums)
+}

16-slices/05-append/2-example/main.go

@@ -0,0 +1,33 @@
+// 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 (
+	s "github.com/inancgumus/prettyslice"
+)
+
+func main() {
+	var todo []string
+
+	todo = append(todo, "sing")
+
+	// you can only append elements with the same element type of the slice
+	// todo = append(todo, 42)
+
+	todo = append(todo, "run")
+
+	// append is a variadic function, so you can append multiple elements
+	todo = append(todo, "code", "play")
+
+	// you can also append a slice to another slice using ellipsis: ...
+	tomorrow := []string{"see mom", "learn go"}
+	todo = append(todo, tomorrow...)
+	// todo = append(todo, "see mom", "learn go")
+
+	s.Show("todo", todo)
+}