encapsulation chapter: javascript => DONE (private)

Author: kariminf

book/encapsulation.tex

@@ -291,8 +291,12 @@ \subsection{Javascript}
 But, any method using this variable must be defined inside the constructor.
 This means each time you create a new instance (object), a new function will be created for this object. 
 
+\lstinputlisting[linerange={1-3,5-14}, style=codeStyle]{../codes/javascript/encapsulation/person.js}
 
+The private member defined by convention can be accessed anywhere. 
+In contrary, the member defined with closures cannot be accessed.
 
+\lstinputlisting[linerange={1-1,4-4,8-9}, style=codeStyle]{../codes/javascript/encapsulation/app.js}
 
 \subsection{Lua}
 

codes/javascript/encapsulation/app.js

@@ -1,13 +1,12 @@
-var Person = require("person.js");
-var Student = require("student.js");
+var Person = require("./person.js");
+var Student = require("./student.js");
 
 var p = new Person("Karim_p");
 var s = new Student("Karim_s");
 
 console.log(p.luckyNumber);
 console.log(p._name);
 console.log(p.num);//undefined
-console.log(p.t);
-
+console.log("=========================");
 p.info();
 s.info();

codes/javascript/encapsulation/person.js

@@ -7,16 +7,15 @@ function Person(name) {
   Person.nbr++;
 
   this.info1 = function(){
-    console.log("My number is: ${num}");
+    console.log("My number is: ", num);
   }
 }
 
 Person.nbr = 0;
 
 Person.prototype.info = function(){
-  console.log("My name: ${this._name}");
+  console.log("My name: ", this._name);
   this.info1();
-  console.log("I am a: " + t);
-  console.log("My lucky number is: " + luckyNumber);
+  console.log("My lucky number is: ", luckyNumber);
   console.log("--------------------------");
 }

codes/javascript/encapsulation/student.js

@@ -1,12 +1,11 @@
-var Person = require("person.js");
+var Person = require("./person.js");
 
 module.exports = Student;
 
 function Student(name) {
   Person.call(this, name);
   this._name = name + "2";//can be accessed
-  console.log("Student => num = ", num, ", this.num = ", this.num);
-  this.t = "student";
+  //console.log("Student => num = ", num, ", this.num = ", this.num); //error
   luckyNumber = 1;
 }