From 6d0e232c9743177e6739ed6dd4f49a2719bce673 Mon Sep 17 00:00:00 2001
From: Josemi Juanes <5751201+jmjuanes@users.noreply.github.com>
Date: Mon, 8 Apr 2024 18:44:13 +0200
Subject: [PATCH] fix: considering empty arrays as falsy values (#5)

---
 index.js | 4 ++--
 test.js  | 7 +++++++
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/index.js b/index.js
index 9b115f6..b13ae8c 100644
--- a/index.js
+++ b/index.js
@@ -30,8 +30,8 @@ const compile = (tokens, output, ctx, opt, index, section) => {
             const negate = tokens[i].startsWith("^");
             if (!negate && value && Array.isArray(value)) {
                 const j = i + 1;
-                value.forEach(item => {
-                    i = compile(tokens, output, item, opt, j, t);
+                (value.length > 0 ? value : [""]).forEach(item => {
+                    i = compile(tokens, value.length > 0 ? output : [], item, opt, j, t);
                 });
             }
             else {
diff --git a/test.js b/test.js
index b37da0a..007a4d3 100644
--- a/test.js
+++ b/test.js
@@ -67,6 +67,13 @@ describe("{{# xyz }}", () => {
         assert.equal(m("{{#items}}{{name}}-{{/items}}", data), "Susan-Bob-");
     });
 
+    it("should not iterate over an empty array", () => {
+        const data = {
+            items: [],
+        };
+        assert.equal(m("List of items: {{#items}}{{.}},{{/items}}", data), "List of items: ");
+    });
+
     it("should throw an error for unmatched end of section", () => {
         const data = {name: "Bob"};
         try {