once.js

// Douglas Crockford's once
// Part 5: The End of All Things, Slide 39

// Once or throw exception
function once(func) {
  return function () {
    var f = func; 
    func = null; 
    return f.apply(this, arguments);
  }
};

do_it(my_inputs, once(storer(my_object, 'blah')));

// AJ ONeal
// Once or alert
function once(func) {
  return function () {
    var f = func; 
    func = null; 
    return f && f.apply(this, arguments) || alert('Did a bad thing...');
  }
};