diff --git a/assets/collection/collection.js b/assets/collection/collection.js
index c9cb0c6..714859a 100644
--- a/assets/collection/collection.js
+++ b/assets/collection/collection.js
@@ -1,4 +1,7 @@
 /** @module collection */
+/**
+ * в разработке
+ */
 kit.PluginManager.register('Collection',function(module, exports, require, global) {
 
     var support = require('support');
@@ -42,7 +45,7 @@ kit.PluginManager.register('Collection',function(module, exports, require, globa
     /**
      * @param key
      * @param value
-     * @return {kitCore.Collection}
+     * @return {kit.Collection}
      */
     Collection.prototype.set = Collection.prototype.put = function (key, value) {
         this.data[key] = value;
@@ -50,7 +53,7 @@ kit.PluginManager.register('Collection',function(module, exports, require, globa
     };
     /**
      * @param value
-     * @return {kitCore.Collection}
+     * @return {kit.Collection}
      */
     Collection.prototype.push = function (value) {
         if(this.type === 'Array') {
@@ -77,7 +80,7 @@ kit.PluginManager.register('Collection',function(module, exports, require, globa
     };
     /**
      * @param callback
-     * @return {kitCore.Collection}
+     * @return {kit.Collection}
      */
     Collection.prototype.map = function (callback) {
         var res = getSimilarInstance(this.type);
@@ -88,7 +91,7 @@ kit.PluginManager.register('Collection',function(module, exports, require, globa
     };
     /**
      * @param callback
-     * @return {kitCore.Collection}
+     * @return {kit.Collection}
      */
     Collection.prototype.each = function (callback = true) {
         var BreakException = {}, keys, i, key;
@@ -108,7 +111,7 @@ kit.PluginManager.register('Collection',function(module, exports, require, globa
     };
     /**
      * @param callback
-     * @return {kitCore.Collection}
+     * @return {kit.Collection}
      */
     Collection.prototype.eachReverse = function (callback = true) {
         var BreakException = {}, keys, i, key;
@@ -128,7 +131,7 @@ kit.PluginManager.register('Collection',function(module, exports, require, globa
     };
     /**
      * @param callback
-     * @return {kitCore.Collection}
+     * @return {kit.Collection}
      */
     Collection.prototype.filter = function (callback = filter) {
         var res = getSimilarInstance(this.type);
@@ -186,14 +189,34 @@ kit.PluginManager.register('Collection',function(module, exports, require, globa
         });
         return res;
     };
+    Collection.prototype.forget = function (key) {
+        key = '' + valueEx(key);
+        if(!this.has(key)) {
+            return this;
+        }
+        switch (this.type) {
+            case 'Array':
+            case 'object':
+                delete this.data[key];
+                break;
+            case 'NodeList':
+                var newCollection = this.filter(function (v, k, arr) {
+                    return key !== Number(k).toString();
+                });
+                this.data = newCollection.data;
+                break;
+            default:
+        }
+        return this;
+    };
     /**
-     * @return {kitCore.Collection}
+     * @return {kit.Collection}
      */
     Collection.prototype.keys = function () {
         return new Collection(Object.keys(this.data));
     };
     /**
-     * @return {kitCore.Collection}
+     * @return {kit.Collection}
      */
     Collection.prototype.dump = Collection.prototype.dd = function () {
         console.log('Collection', this.data);
diff --git a/tests/kit.Collection.php b/tests/kit.Collection.php
index 62d18c6..7aa51a2 100644
--- a/tests/kit.Collection.php
+++ b/tests/kit.Collection.php
@@ -2,6 +2,14 @@
 <script src="../assets/core/core.js"></script>
 <script src="../assets/core/core.register.js"></script>
 
+<?
+$x = [];
+
+$x[10] = 10;
+$x[1] = 1;
+print_r($x);
+
+?>
 
 
 <script>