X-Git-Url: http://git.roojs.org/?a=blobdiff_plain;f=Array.js;h=a3b684d73e3b0d28b3aac55260f907e9de402f4d;hb=refs%2Fheads%2Fwip_alan_T6652_pass_gridview_events_into_grid;hp=1d8a2855c14d0badad37da5a38992e728a9e2cf4;hpb=676422aa798730e17afbcb2a2a51c30251ddd17d;p=roojs1

diff --git a/Array.js b/Array.js
index 1d8a2855c1..a3b684d73e 100644
--- a/Array.js
+++ b/Array.js
@@ -42,20 +42,47 @@ Roo.applyIf(Array.prototype, {
     map : function(fun )
     {
         var len = this.length >>> 0;
-        if (typeof fun != "function")
+        if (typeof fun != "function") {
             throw new TypeError();
-
+        }
         var res = new Array(len);
         var thisp = arguments[1];
         for (var i = 0; i < len; i++)
         {
-            if (i in this)
+            if (i in this) {
                 res[i] = fun.call(thisp, this[i], i, this);
+            }
         }
 
         return res;
+    },
+    /**
+     * equals
+     * @param {Array} o The array to compare to
+     * @returns {Boolean} true if the same
+     */
+    equals : function(b)
+    {
+        // https://stackoverflow.com/questions/3115982/how-to-check-if-two-arrays-are-equal-with-javascript
+	if (this === b) {
+	    return true;
+	 }
+	if (b == null) {
+	    return false;
+	}
+	if (this.length !== b.length) {
+	    return false;
+	}
+      
+	// sort?? a.sort().equals(b.sort());
+      
+	for (var i = 0; i < this.length; ++i) {
+	    if (this[i] !== b[i]) {
+		return false;
+	    }
+	}
+	return true;
     }
-    
 });