http://www.google.com/doodle4google/

Let’s take a look at a more interesting case, when the inner function has a longer lifetime than its outer function.

Imagine we made an Object (myObj) that had a value and an increment method. Presume we wanted to protect the value from illicit changes.

Instead of initializing myObj with an object literal, we will initialize myObj by calling a function that returns an object literal. That function defines a value variable. That variable is always available to the increment and getValue methods, but the function’s scope keeps it hidden from the rest of the program:

var myObj = function (  ) {

var value = 0;

return {

increment: function (inc) {

value += typeof inc === ‘number’ ? inc : 1;

},

getValue: function (  ) {

return value;

}

}

}(  );

We are not assigning a function to myObj. We are assigning the result of invoking that function. Notice the ( ) on the last line. The function returns an object containing two methods, and those methods continue to benefit from the privilege of access to the value variable.

(NY) the third highly anticipate  version of the iPad 3 might be announced in San Francisco this Wednesday.  The journalist where invited to the Yerba Buena Center for the Arts Theater. Apple didn’t give any details yet concerning the new device. Apart from the Retina Display, there are also rumors for maybe a quad-core processor, 4G LTE networking and an 8 megapixel camera.

More rumors are surely expected this week. Keep following your favorite iPad 3 blog and stay up-to-date minute-by-minute.