sync

[roojs1] / Array.js

diff --git a/Array.js b/Array.js
index c775775..a3b684d 100644 (file)
--- a/Array.js
+++ b/Array.js
@@ -20,7 +20,7 @@ Roo.applyIf(Array.prototype, {
      */
     indexOf : function(o){
        for (var i = 0, len = this.length; i < len; i++){
-             if(this[i] == o) return i;
+             if(this[i] == o) { return i; }
        }
           return -1;
     },
@@ -42,21 +42,48 @@ 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;
     }
-    
 });
 
 
- 
\ No newline at end of file
+