/* Get Programming with JavaScript

 * Listing 11.08

 * Hiding the counter variable

 */

​

var getCounter = function () {

  var counter = 0;

  var countUpBy1 =  function () {

    counter = counter + 1;

    return counter;

  };

  return countUpBy1;

};

​

var count = getCounter();

​

​

​

/* Further Adventures

 *

 * 1) At the prompt, type the following commands:

 *

 *    > count()

 *    > count()

 *    > count()

 *

 * Each time count is called, the current value of

 * counter is displayed on the console.

 *

 * 2) At the prompt, type the following commands:

 *

 *    > counter

 *

 * The counter variable is local to the getCounter

 * function; that's where it was declared. It can't

 * be accessed from the console because it is not

 * a global variable.

 *

 */