From 8801de62df04a3c1b73ec50f07f23150c2c677d0 Mon Sep 17 00:00:00 2001
From: Todd Wolfson <todd@twolfson.com>
Date: Mon, 6 Oct 2014 06:35:20 +0900
Subject: [PATCH] Added support for inverted sections and arrays. Fixes #14

Added test for populated arrays and inverted

Finished up array logic

Caught logic flaw

Adjusted to more practical test content

Added support for falsy arrays

Added test for falsy arrays
---
 index.js      |  8 +++++++-
 test/index.js | 12 ++++++++++++
 2 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/index.js b/index.js
index a10e1e7..f195852 100644
--- a/index.js
+++ b/index.js
@@ -126,7 +126,13 @@ function indent(str) {
 
 function section(obj, prop, negate, thunk) {
   var val = obj[prop];
-  if (Array.isArray(val)) return val.map(thunk).join('');
+  if (Array.isArray(val)) {
+    if (negate) {
+      return val.length ? '' : thunk(obj);
+    } else {
+      return val.map(thunk).join('');
+    }
+  }
   if ('function' == typeof val) return val.call(obj, thunk(obj));
   if (negate) val = !val;
   if (val) return thunk(obj);
diff --git a/test/index.js b/test/index.js
index 572f625..a9b60c6 100644
--- a/test/index.js
+++ b/test/index.js
@@ -118,4 +118,16 @@ describe('{{^id}}', function(){
     var user = { admin: false, authenticated: false };
     mm('{{^admin}}{{^authenticated}}nope{{/}}{{/}}', user).should.equal('nope');
   })
+
+  it('should consider empty arrays falsy', function(){
+    var users = { users: [] };
+    mm('users exist: {{^users}}nope{{/users}}', users)
+     .should.equal('users exist: nope');
+  })
+
+  it('should ignore populated arrays', function(){
+    var users = { users: [ 'tobi' ] };
+    mm('users exist: {{#users}}yep{{/users}}{{^users}}nope{{/users}}', users)
+     .should.equal('users exist: yep');
+  })
 })