I have created a simple chart in Excel. I've never used the charting capability. My first question is - Do you have any good documentation on how to use all of the Excel for Javascript features. Nothing I find online is sufficient to describe all features and how to use them.

Below is very simplified code. I'm only testing, so haven't even filled the chart with data. Prior to this I've already created the workbook.

var chartTitle;
Chart1 = wschart.shapes().addChart($.ig.excel.ChartType.barClustered, cell1, { x: 0, y: 0 }, cell2, { x: 100, y: 100 });
chartTitle = new $.ig.excel.ChartTitle();
chartTitle.text = "Some Text";
Chart1.chartTitle(chartTitle);

None of the above gives me an error until I Save the Excel document, then I receive the following error.

j.text is not a function

If this is not how to define a title for a chart, please tell me how. I can find no online documentation describing how to do what should be a very simple task.