Referencing scoped functions in the global namespace

reference-scoped-func.js

(function(){
  // Internal vars and functions
  var s = 1,
  t = 3,
  internalFunction = function(){
    return s+t;
  },
  externalFunction = function(){
    return internalFunction();
  };

  // Reference the functions we want available in the global scope
  window._v = new Object();
  window._v.extFunc = externalFunction;
})();

console.log(window._v.extFunc());
// Outputs '4'