Async flow control thingy

AsyncFlow

module.exports = function (functions, callback) {
  var i = 0, args;

  (function it(err) {
    args = Array.prototype.slice.call(arguments);
    args.shift();

    if (i < functions.length && !err) {
      try { 
        functions[i++].apply(this, [it].concat(args));
      } catch (e) { 
        callback(e, args);
      }
    } else {
      (callback?callback:function(){})(err, args);
    }
  })();
};