gistfile1.coffee

var async = require('async');
var assert = require('assert');


engines = ['one', 'two', 'three'];

async.filter(engines, function(item, callBack){
  callBack(item != 'two');
}, function(results){
  assert.deepEqual(results, ['one', 'three']);
  console.log(results);
});

console.log('after');