test.js

function updateSection(region) {

    // check flags
    if (_updating === true || _dirtyFlag === false)
        return;

    TXTextControl.editableRegions.forEach(function (er) {

        // find region by id
        er.getID(function (id) {

            if (region.editableRegion.id == id) {

                // save the region content
                er.save(TXTextControl.StreamType.InternalUnicodeFormat,
                    function (doc) {

                    // create sync object
                    var regionSyncObject = {
                        User: region.editableRegion.userName,
                        RegionId: id, Document: doc.data
                    };

                    // call signalr hub with sync object
                    _connection.invoke("SetEditableRegionSync",
                        regionSyncObject).catch(function (err) {
                            return console.error(err.toString());
                        });

                });

            }

        });
    });
}