deleteColumn
Deletes the contents of the column at the provided index and shifts the remaining contents of the sheet to the left.
Parameters
index Number
The zero-based index of the column
Example
<div id="spreadsheet"></div>
<script type="text/javascript" charset="utf-8">
$("#spreadsheet").kendoSpreadsheet();
var spreadsheet = $("#spreadsheet").data("kendoSpreadsheet");
var sheet = spreadsheet.activeSheet();
sheet.range("A1:B2").values([ [1, 2], [2, 3] ]);
sheet.deleteColumn(0);
</script>