Add an example with automatic array size (mmcgrana#522)

* Add am example with automatic array size

You can learn more about this here: https://go.dev/blog/slices-intro#arrays

* Update arrays.sh

Forgot about this file 😅

* Added example with indices in the initialization

* Added multi-dimensional array initialization example

* Removed clarification about commas

* Run tools/build

* Fixed output mismatch

examples/arrays/arrays.go

@@ -31,6 +31,16 @@ func main() {
 	b := [5]int{1, 2, 3, 4, 5}
 	fmt.Println("dcl:", b)
 
+	// You can also have the compiler count the number of
+	// elements for you with `...`
+	b = [...]int{1, 2, 3, 4, 5}
+	fmt.Println("dcl:", b)
+
+	// If you specify the index with `:`, the elements in
+	// between will be zeroed.
+	b = [...]int{100, 3: 400, 500}
+	fmt.Println("idx:", b)
+
 	// Array types are one-dimensional, but you can
 	// compose types to build multi-dimensional data
 	// structures.
@@ -41,4 +51,12 @@ func main() {
 		}
 	}
 	fmt.Println("2d: ", twoD)
+
+	// You can create and initialize multi-dimensional
+	// arrays at once too.
+	twoD = [2][3]int{
+		{1, 2, 3},
+		{1, 2, 3},
+	}
+	fmt.Println("2d: ", twoD)
 }

examples/arrays/arrays.hash

@@ -1,2 +1,2 @@
-e2bdc11af83f9c6964cfa0e06e4642943b3055ae
-bBVikSoZ1Z7
+789f9faa91c359e5337ace4f80b38428f39d4e7b
+zVIFeNnUdwv

examples/arrays/arrays.sh

@@ -6,4 +6,7 @@ set: [0 0 0 0 100]
 get: 100
 len: 5
 dcl: [1 2 3 4 5]
+dcl: [1 2 3 4 5]
+idx: [100 0 0 400 500]
 2d:  [[0 1 2] [1 2 3]]
+2d:  [[1 2 3] [1 2 3]]