@@ -122,3 +122,25 @@ Person.prototype = (function(){
122122 1 . globals can be passed in parameters to the immediate function
123123* a module can create a constructor as well
124124* if you return the constructor function instead of an object
125+ 126+ ## sandbox pattern
127+ 128+ * addresses some namespace drawbacks: single global var, long dotted names
129+ 130+ ``` js
131+ new SandBox (' dependencies' ' here' function (box ){
132+ // your code here
133+ });
134+ ```
135+ 136+ * you have a single global constructor
137+ * passed in callback function is you isolated environment
138+ * you initiate multiple Sandbox object and even nest them
139+ * you can name the constructor appropriately (instead of Sandbox)
140+ 141+ ## implementing the sandbox pattern
142+ 143+ * as the Sandbox function is an object we can add a modules (object) property to it
144+ * add required modules to ``` this ```
145+ * then call callback with ``` this ```
146+ * the callback is the users sandbox and get populated with the requested functionality
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