Call an array of asynchronous functions in parallel

var parallel = require('array-parallel')
parallel([
  function (done) {
    done()
  }
], this, function (err) {
})

fns is an array of functions to call in parallel. The argument signature should be:

function (done) {
  done(new Error())
  // or
  done(null, result)
}

That is, each function should only take a done as an argument. Each callback should only take an Error as the first argument, or a value as the second.

Optional context to pass to each fn. Basically fn.call(context, done).

function (err, results) {
}

Only argument is an Error argument. It will be the first error retrieved from all the fns. results will be an array of results from each fn, thus this could be considered an asynchronous version of [].map.

The MIT License (MIT)

Copyright (c) 2013 Jonathan Ong me@jongleberry.com

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.