alinex-async/lib/mapof.js

An extended version of the async library.

(function() {
  var async;

  async = require('async');

  module.exports.mapOf = function(obj, iterator, cb) {
    var keys;
    if (typeof obj !== 'object') {
      return cb(new Error("mapOf only works on objects"));
    }
    keys = Object.keys(obj);
    return async.map(keys, function(key, cb) {
      return iterator(obj[key], key, cb);
    }, function(err, results) {
      var i, map, num, ref;
      if (err) {
        return cb(err);
      }
      map = {};
      for (num = i = 0, ref = keys.length - 1; 0 <= ref ? i <= ref : i >= ref; num = 0 <= ref ? ++i : --i) {
        map[keys[num]] = results[num];
      }
      return cb(null, map);
    });
  };

  module.exports.mapOfLimit = function(obj, limit, iterator, cb) {
    var keys;
    if (typeof obj !== 'object') {
      return cb(new Error("mapOf only works on objects"));
    }
    keys = Object.keys(obj);
    return async.mapLimit(keys, limit, function(key, cb) {
      return iterator(obj[key], key, cb);
    }, function(err, results) {
      var i, map, num, ref;
      if (err) {
        return cb(err);
      }
      map = {};
      for (num = i = 0, ref = keys.length - 1; 0 <= ref ? i <= ref : i >= ref; num = 0 <= ref ? ++i : --i) {
        map[keys[num]] = results[num];
      }
      return cb(null, map);
    });
  };

  module.exports.mapOfSeries = function(obj, iterator, cb) {
    var keys;
    if (typeof obj !== 'object') {
      return cb(new Error("mapOf only works on objects"));
    }
    keys = Object.keys(obj);
    return async.mapSeries(keys, function(key, cb) {
      return iterator(obj[key], key, cb);
    }, function(err, results) {
      var i, map, num, ref;
      if (err) {
        return cb(err);
      }
      map = {};
      for (num = i = 0, ref = keys.length - 1; 0 <= ref ? i <= ref : i >= ref; num = 0 <= ref ? ++i : --i) {
        map[keys[num]] = results[num];
      }
      return cb(null, map);
    });
  };

}).call(this);

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