This documentation page (link https://bossanova.uk/jspreadsheet/v4/docs/events) has an error, in the description of Event (onbeforedeletecolumn), 'Before a column is excluded. You can cancel the insert event by returning false.' should be changed to 'Before a column is excluded. You can cancel the delete event by returning false.'.
This documentation page (link https://bossanova.uk/jspreadsheet/v4/docs/events) has an error, in the description of Event (onbeforedeletecolumn), 'Before a column is excluded. You can cancel the insert event by returning false.' should be changed to 'Before a column is excluded. You can cancel the delete event by returning false.'.