dynatrace-cordova-outsystems-plugin/node_modules/asynckit/serialOrdered.js

This plugin gives you the ability to use the Dynatrace instrumentation in your hybrid application (Cordova, Ionic, ..). It uses the Mobile Agent, the JavaScript Agent and the Javascript Bridge. The Mobile Agent will give you all device specific values con

var iterate    = require('./lib/iterate.js')
  , initState  = require('./lib/state.js')
  , terminator = require('./lib/terminator.js')
  ;

// Public API
module.exports = serialOrdered;
// sorting helpers
module.exports.ascending  = ascending;
module.exports.descending = descending;

/**
 * Runs iterator over provided sorted array elements in series
 *
 * @param   {array|object} list - array or object (named list) to iterate over
 * @param   {function} iterator - iterator to run
 * @param   {function} sortMethod - custom sort function
 * @param   {function} callback - invoked when all elements processed
 * @returns {function} - jobs terminator
 */
function serialOrdered(list, iterator, sortMethod, callback)
{
  var state = initState(list, sortMethod);

  iterate(list, iterator, state, function iteratorHandler(error, result)
  {
    if (error)
    {
      callback(error, result);
      return;
    }

    state.index++;

    // are we there yet?
    if (state.index < (state['keyedList'] || list).length)
    {
      iterate(list, iterator, state, iteratorHandler);
      return;
    }

    // done here
    callback(null, state.results);
  });

  return terminator.bind(state, callback);
}

/*
 * -- Sort methods
 */

/**
 * sort helper to sort array elements in ascending order
 *
 * @param   {mixed} a - an item to compare
 * @param   {mixed} b - an item to compare
 * @returns {number} - comparison result
 */
function ascending(a, b)
{
  return a < b ? -1 : a > b ? 1 : 0;
}

/**
 * sort helper to sort array elements in descending order
 *
 * @param   {mixed} a - an item to compare
 * @param   {mixed} b - an item to compare
 * @returns {number} - comparison result
 */
function descending(a, b)
{
  return -1 * ascending(a, b);
}