* Adding Object.contains and Object.keyOf

mootools · Feb 5, 2011 · 38c17a9 · 38c17a9
1 parent d7189e4
commit 38c17a9
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Showing 2 changed files with 12 additions and 1 deletion.
diff --git a/Source/Types/Object.js b/Source/Types/Object.js
@@ -83,6 +83,17 @@ Object.extend({
 			if (object.hasOwnProperty(key)) values.push(object[key]);
 		}
 		return values;
+	},
+
+	keyOf: function(object, value){
+		for (var key in object){
+			if (object.hasOwnProperty(key) && object[key] === value) return key;
+		}
+		return null;
+	},
+
+	contains: function(object, value){
+		return Object.keyOf(object, value) != null;
 	}
 
 });
diff --git a/Specs b/Specs