From 7e96af0fdd9af8c479992363f68578305df0337e Mon Sep 17 00:00:00 2001
From: Misko Hevery
Date: Mon, 19 Jul 2010 12:29:24 -0700
Subject: added equals method to angular.equals and $equals

---
 src/Angular.js       | 28 +++++++++++++++++++++++++++-
 src/AngularPublic.js |  1 +
 src/apis.js          |  3 ++-
 3 files changed, 30 insertions(+), 2 deletions(-)

(limited to 'src')

diff --git a/src/Angular.js b/src/Angular.js
index 07e9096b..e39e31c9 100644
--- a/src/Angular.js
+++ b/src/Angular.js
@@ -263,6 +263,32 @@ function copy(source, destination){
   }
 }
 
+function equals(o1, o2) {
+  if (o1 == o2) return true;
+  var t1 = typeof o1, t2 = typeof o2, length, key, keySet;
+  if (t1 == t2 && t1 == 'object') {
+    if (o1 instanceof Array) {
+      if ((length = o1.length) == o2.length) {
+        for(key=0; key<length; key++) {
+          if (!equals(o1[key], o2[key])) return false;
+        }
+        return true;
+      }
+    } else {
+      keySet = {};
+      for(key in o1) {
+        if (key.charAt(0) !== '$' && !equals(o1[key], o2[key])) return false;
+        keySet[key] = true;
+      }
+      for(key in o2) {
+        if (key.charAt(0) !== '$' && keySet[key] !== true) return false;
+      }
+      return true;
+    }
+  }
+  return false;
+}
+
 function setHtml(node, html) {
   if (isLeafNode(node)) {
     if (msie) {
@@ -333,7 +359,7 @@ function outerHTML(node) {
 function toBoolean(value) {
   if (value && value.length !== 0) {
     var v = lowercase("" + value);
-    value = !(v == 'f' || v == '0' || v == 'false' || v == 'no' || v == '[]');
+    value = !(v == 'f' || v == '0' || v == 'false' || v == 'no' || v == 'n' || v == '[]');
   } else {
     value = false;
   }
diff --git a/src/AngularPublic.js b/src/AngularPublic.js
index 7230c3e5..817a1f93 100644
--- a/src/AngularPublic.js
+++ b/src/AngularPublic.js
@@ -14,6 +14,7 @@ extend(angular, {
   'scope': createScope,
   'copy': copy,
   'extend': extend,
+  'equals': equals,
   'foreach': foreach,
   'noop':noop,
   'bind':bind,
diff --git a/src/apis.js b/src/apis.js
index 306d0ce8..2d0c571e 100644
--- a/src/apis.js
+++ b/src/apis.js
@@ -12,7 +12,8 @@ var angularGlobal = {
 };
 
 var angularCollection = {
-  'size': size
+  'size': size,
+  'equals': equals
 };
 var angularObject = {
   'extend': extend
-- 
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