docs/howto: use list.Concat

This adds a Commented CUE guide demonstrating how to use list.Concat to concatenate lists. Preview-Path: /docs/howto/use-the-built-in-function-list-concat-to-concatenate-lists/ Signed-off-by: Jonathan Matthews <[email protected]> Change-Id: I482a2a8669841b96069e87b74e68a7c3f01ee878 Dispatch-Trailer: {"type":"trybot","CL":1174726,"patchset":18,"ref":"refs/changes/26/1174726/18","targetBranch":"alpha"}
cue-lang · Jan 24, 2024 · 1921319 · 1921319
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diff --git a/...ent/docs/howto/use-the-built-in-function-list-concat-to-concatenate-lists/en.md b/...ent/docs/howto/use-the-built-in-function-list-concat-to-concatenate-lists/en.md
@@ -0,0 +1,67 @@
+---
+title: Using the built-in function "list.Concat" to concatenate lists
+tags:
+- commented cue
+authors:
+- jpluscplusm
+toc_hide: true
+---
+
+This [Commented CUE]({{< relref "docs/howto#commented-cue-guides" >}})
+demonstrates how to use the built-in function
+[`list.Concat`](https://pkg.go.dev/cuelang.org/go/pkg/list#Concat)
+to concatenate a list of lists.
+
+{{{with code "en" "cc"}}}
+exec cue export -e output
+cmp stdout out
+-- file.cue --
+package example
+
+import "list"
+
+// list.Concat concatenates lists in the order
+// they are provided, including re-processing
+// repeated references.
+output: list.Concat([listA, listB, listC, listB])
+
+listA: [1, 2, 3, 4]
+listB: ["hello", "world"]
+listC: [{
+	a: 10
+	b: "10"
+}, {
+	a: 11
+	b: "11"
+}, {
+	a: 12
+	b: "12"
+}]
+-- out --
+[
+    1,
+    2,
+    3,
+    4,
+    "hello",
+    "world",
+    {
+        "a": 10,
+        "b": "10"
+    },
+    {
+        "a": 11,
+        "b": "11"
+    },
+    {
+        "a": 12,
+        "b": "12"
+    },
+    "hello",
+    "world"
+]
+{{{end}}}
+
+## Related content
+
+- The [`list`](https://pkg.go.dev/cuelang.org/go/pkg/list) built-in package
diff --git a/content/docs/howto/use-the-built-in-function-list-concat-to-concatenate-lists/gen_cache.cue b/content/docs/howto/use-the-built-in-function-list-concat-to-concatenate-lists/gen_cache.cue
@@ -0,0 +1,18 @@
+package site
+{
+	content: {
+		docs: {
+			howto: {
+				"use-the-built-in-function-list-concat-to-concatenate-lists": {
+					page: {
+						cache: {
+							code: {
+								cc: "C/lyu4iZepLe25cdtwys4yqUHAgG/bwTCED+emeN8u0="
+							}
+						}
+					}
+				}
+			}
+		}
+	}
+}
diff --git a/content/docs/howto/use-the-built-in-function-list-concat-to-concatenate-lists/page.cue b/content/docs/howto/use-the-built-in-function-list-concat-to-concatenate-lists/page.cue
@@ -0,0 +1,3 @@
+package site
+
+content: docs: howto: "use-the-built-in-function-list-concat-to-concatenate-lists": {}
diff --git a/.../docs/howto/use-the-built-in-function-list-concat-to-concatenate-lists/index.md b/.../docs/howto/use-the-built-in-function-list-concat-to-concatenate-lists/index.md
@@ -0,0 +1,68 @@
+---
+title: Using the built-in function "list.Concat" to concatenate lists
+tags:
+- commented cue
+authors:
+- jpluscplusm
+toc_hide: true
+---
+
+This [Commented CUE]({{< relref "docs/howto#commented-cue-guides" >}})
+demonstrates how to use the built-in function
+[`list.Concat`](https://pkg.go.dev/cuelang.org/go/pkg/list#Concat)
+to concatenate a list of lists.
+
+{{< code-tabs >}}
+{{< code-tab name="file.cue" language="cue"  area="top-left" >}}
+package example
+
+import "list"
+
+// list.Concat concatenates lists in the order
+// they are provided, including re-processing
+// repeated references.
+output: list.Concat([listA, listB, listC, listB])
+
+listA: [1, 2, 3, 4]
+listB: ["hello", "world"]
+listC: [{
+	a: 10
+	b: "10"
+}, {
+	a: 11
+	b: "11"
+}, {
+	a: 12
+	b: "12"
+}]
+{{< /code-tab >}}
+{{< code-tab name="TERMINAL" language="" type="terminal" area="top-right" >}}
+$ cue export -e output
+[
+    1,
+    2,
+    3,
+    4,
+    "hello",
+    "world",
+    {
+        "a": 10,
+        "b": "10"
+    },
+    {
+        "a": 11,
+        "b": "11"
+    },
+    {
+        "a": 12,
+        "b": "12"
+    },
+    "hello",
+    "world"
+]
+{{< /code-tab >}}
+{{< /code-tabs >}}
+
+## Related content
+
+- The [`list`](https://pkg.go.dev/cuelang.org/go/pkg/list) built-in package
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		package site

		content: docs: howto: "use-the-built-in-function-list-concat-to-concatenate-lists": {}