fhinkel

function valuesFn (array) {
  var i = 0
  return function foo (abort, cb) {
    if(i >= array.length)
      cb(true)
    else
      cb(null, array[i++])
  }
}

fhinkel

var fs = require('fs')

for (var i = 0; i < 10000; i++) {
  printLength(__filename)
}

function printLength (filename) {
  fs.readFile(filename, foo)

  function foo (err, buf)  {