From dca9ab52b8e473a5f6cebdb76826dbb18d165140 Mon Sep 17 00:00:00 2001
From: Tomas Hubelbauer <tomas@hubelbauer.net>
Date: Mon, 22 May 2023 18:35:18 +0200
Subject: [PATCH] Add support for the Jekyll push filter

See https://jekyllrb.com/docs/liquid/filters
---
 src/filters/array.ts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/filters/array.ts b/src/filters/array.ts
index 26ad9d0e2..de29f8d06 100644
--- a/src/filters/array.ts
+++ b/src/filters/array.ts
@@ -54,6 +54,10 @@ export function concat<T1, T2> (v: T1[], arg: T2[] = []): (T1 | T2)[] {
   return toArray(v).concat(arg)
 }
 
+export function push<T> (v: T[], arg: T): T[] {
+  return concat(v, [arg])
+}
+
 export function slice<T> (v: T[] | string, begin: number, length = 1): T[] | string {
   v = toValue(v)
   if (isNil(v)) return []