CoffeeScript : Async.js calling functions in parallel

Question

I have a set of functions that are independent of each other [each of them returns a value, each of these functions also accept parameters.] and I wish to run them in parallel. If i use async.parallel I wont have the liberty to catch the values. Is there a way to do this?

Thanks.

The Async library actually does give you access to the results of the async functions. It's right in the docs: Second argument to async.parallel is callback(err, results) - An optional callback to run once all the functions have completed. This function gets a results array (or object) containing all the result arguments passed to the task callbacks. — Myrne Stol
– Myrne Stol, Commented Apr 21, 2014 at 10:24
But yeah now i have a new problem, I want to pass some value to these functions, now async.parallels doesnt all me to pass function paramters. — Ankit Solanki
– Ankit Solanki, Commented Apr 21, 2014 at 10:27

Myrne Stol · Accepted Answer · 2014-04-21 10:27:51Z

1

Example of how to do this in CoffeeScript:

async = require "async"
fns = [
   (cb) -> cb 1
   (cb) -> cb 2
   (cb) -> cb 4
]

async.parallel fns, (results) ->
  console.log results
  # produces [1,2,4]

answered Apr 21, 2014 at 10:27

Myrne Stol

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Ankit Solanki Over a year ago

But what if i want to pass some parameters to the function.?

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