An example javascript closure, with public / private vars and a shortcut function.

closureex.js

var example = (function() {
 
  var
  fn1 = function() {return fn2();},
  fn2 = function() {return "b";};
 
  return {
    "pubfn1": fn1
  };
 
})();
 
console.log(example.fn1);
console.log(example.fn2);
console.log(example.pubfn1);
console.log(example.pubfn1());
 
var shortcut = example.pubfn1;
 
console.log(shortcut());