fa = fluent/functional async

fa is a fluent and functional async library. Inspired by async[1], it takes the functional operators, and adds some modifiers, to enable a queue depth, run to completion regardless of errors, run in series, and add an index to the callback.

fa.map(
  [1,2,3], 
  function(num,cb) { cb(null, num*2); },
  function(err, result) { console.log(result); }
);

[1] https://github.com/caolan/async