parallelogram.js

Run functions in parallel with a final callback (small and no dependencies). This module works both on Node.js and a web browser.

parallelogram(jobs, [callback])

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

Arguments

• jobs – An array containing functions to run. Each function is passed a callback(err) which it must call on completion with an error err if needed.
• callback(err) – An optional and final callback to run once all the functions have completed or when an error occurs.

Example

parallelogram(

  [

    function (done) {
      done();
    },

    function (done) {
      done();
    }

  ],

  function (err) {
    // All done unless `err` is defined.
  }

);