run-parallel

Run an array of functions in parallel

install

npm install run-parallel

usage

parallel(tasks, [callback])

Run the tasks array of functions in parallel, without waiting until the previous function has completed. If any of the functions pass an error to its callback, the main callback is immediately called with the value of the error. Once the tasks have completed, the results are passed to the final callback as an array.

var parallel = require('run-parallel')

parallel([
  function (callback) {
      setTimeout(function () {
          callback(null, 'one')
      }, 200)
  },
  function (callback) {
      setTimeout(function () {
          callback(null, 'two')
      }, 100)
  }
],
// optional callback
function (err, results) {
    // the results array will equal ['one','two'] even though
    // the second function had a shorter timeout.
})

This module is basically equavalent to async.parallel, but it's handy to just have the one function you need instead of the kitchen sink. Modularity! Especially handy if you're serving to the browser and need to reduce your javascript bundle size.

Works great in the browser with browserify!

license

MIT. Copyright (c) Feross Aboukhadijeh.