anychart.onDocumentReady(function () {
var dataTable = anychart.data.table();
dataTable.addData(get_dji_daily_short_data());
var mapping = dataTable.mapAs({value: 1});
var chart = anychart.stock();
var series = plot.stepArea(mapping);
series.stroke('#F44336');
var stroke = series.stroke();
chart.title({fontColor: stroke, text: 'Get and use stroke'});
chart.container('container');