Question

I have seen the following code

var MODULE = (function () {
var my = {},
    privateVariable = 1;

function privateMethod() {
    // ...
}

my.moduleProperty = 1;
my.moduleMethod = function () {
    // ...
};

return my;
 }());

the properties can be accessed like MODULE.moduleProperty …right?
But how to access globals privateVariable and privateMethod() inside the module(which are globals insode the module …right?)

Answer 1

You can only access them from WITHIN the module code itself as such:

var MODULE = (function () { 
 var my = {},
 privateVariable = 1;
 function privateMethod() {
  alert('this is private!');
 }

 my.moduleProperty = 1;
 my.moduleMethod = function () {
  privateMethod();
  return privateVariable;
 };
 return my;
}());

Doing this:

MODULE.moduleMethod();

Will call private method (and alert ‘this is private!’) and return the value of privateVariable.

There is no way to access privateVariable or privateMethod outside the MODULE scope.

var MODULE = (function() {
 //...declare your module as above
}());

console.log(MODULE.privateVariable); //logs undefined

Hopefully that helps clear it up for you.