From 7958694c0ea91d3bef545cc4857a53e8c5eab48d Mon Sep 17 00:00:00 2001 From: adriancuadrado Date: Mon, 15 Apr 2024 16:34:57 +0200 Subject: [PATCH] Add an example with automatic array size (#522) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit * 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 | 18 +++++++++++++ examples/arrays/arrays.hash | 4 +-- examples/arrays/arrays.sh | 3 +++ public/arrays | 53 ++++++++++++++++++++++++++++++++++--- 4 files changed, 72 insertions(+), 6 deletions(-) diff --git a/examples/arrays/arrays.go b/examples/arrays/arrays.go index 010a7e564..06b4c17b2 100644 --- a/examples/arrays/arrays.go +++ b/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) } diff --git a/examples/arrays/arrays.hash b/examples/arrays/arrays.hash index 8e1c671d9..12253ebfc 100644 --- a/examples/arrays/arrays.hash +++ b/examples/arrays/arrays.hash @@ -1,2 +1,2 @@ -e2bdc11af83f9c6964cfa0e06e4642943b3055ae -bBVikSoZ1Z7 +789f9faa91c359e5337ace4f80b38428f39d4e7b +zVIFeNnUdwv diff --git a/examples/arrays/arrays.sh b/examples/arrays/arrays.sh index 76c43f6c3..bce55ab8b 100644 --- a/examples/arrays/arrays.sh +++ b/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]] diff --git a/public/arrays b/public/arrays index 675a3f3b9..028fc060f 100644 --- a/public/arrays +++ b/public/arrays @@ -44,7 +44,7 @@ scenarios.

- + 
package main
@@ -123,6 +123,32 @@ in one line.

+ + +

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 @@ -130,7 +156,7 @@ compose types to build multi-dimensional data structures.

- + 
    var twoD [2][3]int
     for i := 0; i < 2; i++ {
@@ -138,6 +164,22 @@ structures.

             twoD[i][j] = i + j
         }
     }
+    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)
 }
@@ -161,7 +203,10 @@ when printed with fmt.Println.

get: 100 len: 5 dcl: [1 2 3 4 5] -2d: [[0 1 2] [1 2 3]] +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]] @@ -180,7 +225,7 @@ when printed with fmt.Println.