gistfile1.js

loadObjectsFromArray: function (arr, finalCallback) {
        var callbackCount = 0;
        var embed = [];
        var finishCallback = function () {
            callbackCount++;
            if (callbackCount >= arr.length) {
                finalCallback(embed);
            }
        };

        for (var i = 0; i < arr.length; i++) {
            (function () {
                const idx = i;
                var item = arr[i];
                var c = new MyDomain.MyObject();
                c.loadFromData(item, true, function (err, data) {
                    if (!err && data != null) {
                        embed[idx] = c;
                    } else {
                        embed[idx] = null;
                    }
                    finishCallback();
                });
            })();
        }

    },