@@ -57,7 +57,7 @@ function myFunction(){
5757* any variables part of constructor closure are not visible outside of it
5858
5959``` js
60- function Person (){
60+ function Person (){
6161 var secret = ' hey'
6262 return {
6363 doIt : function (){
@@ -78,3 +78,35 @@ me.doIt(); //does it
7878* internal arrays/objects are still modifiable via reference
7979* make sure you return a new object with only the properties needed by caller
8080* or copy your objects/arrays (with utility methods)
81+ 82+ ## private properties on prototype
83+ 84+ * properties are re-created every time an object is initialized
85+ * shared properties of prototype can also be made private with the same pattern
86+ 87+ ``` js
88+ Person .prototype = (function (){
89+ // all person sharing the same secret
90+ var secret = ' hey'
91+ return {
92+ doIt : function (){
93+ // can see secret
94+ }
95+ }
96+ }());
97+ ```
98+ 99+ ## revealing module pattern
100+ 101+ * revealing private methods by assigning them to properties of the returned object
102+ * can name the property differently to the internal function
103+ * can expose internal function under more than one names
104+ 105+ ``` js
106+ Person .prototype = (function (){
107+ function sayHello () {}
108+ return {
109+ greeting: sayHello
110+ }
111+ }());
112+ ```
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