step is just no value, it's just a trick

[kaven276]

the code example in step's readme

Step(
  function readDir() {
    fs.readdir(__dirname, *this*);   <--------
  },
  function readFiles(err, results) {
    if (err) throw err;
    // Create a new group
    * var group = this.group() *;     <--------
    results.forEach(function (filename) {
      if (/\.js$/.test(filename)) {
        fs.readFile(__dirname + "/" + filename, 'utf8', *group()*);   <--------
      }
    });
  },
  function showAll(err , files) {
    if (err) throw err;
    console.dir(files);
  }
);

can just use this more clear code instead, replace all (this, this.group, this.async) away, step jsut play a trick, it sell you something you just have own already.

var fs = require('fs');
fs.readdir(__dirname, readFiles);

function readFiles(err, results){
  if (err) throw err;
  // Create a new group
  async.map(results, function(filename, cb){   <-------- use async.map to finally get all async result
    if (/\.js$/.test(filename)) {
      fs.readFile(__dirname + "/" + filename, 'utf8', cb);
    }
  }, showAll);
}

function showAll(err, files){
  if (err) throw err;
  console.dir(files);
}

[kaven276]

so as async.waterflow, both step and async.waterflow is useless, it just save your a function name

[raffecat]

Yes, as an alternative to the async library, step is indeed superfluous if you happen to be using the async library. No trick necessary ;)

[dcporter]

"This module does the same thing as another module but with different words!"

This issue can probably be fruitfully closed.