Convert instance of 'google.visualization.DataTable' to CSV

DataTableToCSV.js

/**
 * Convert an instance of google.visualization.DataTable to CSV
 * @param {google.visualization.DataTable} dataTable_arg DataTable to convert
 * @return {String} Converted CSV String
 */
function dataTableToCSV(dataTable_arg) {
    var dt_cols = dataTable_arg.getNumberOfColumns();
    var dt_rows = dataTable_arg.getNumberOfRows();
    
    var csv_cols = [];
    var csv_out;
    
    // Iterate columns
    for (var i=0; i<dt_cols; i++) {
        // Replace any commas in column labels
        csv_cols.push(dataTable_arg.getColumnLabel(i).replace(/,/g,""));
    }
    
    // Create column row of CSV
    csv_out = csv_cols.join(",")+"\r\n";
    
    // Iterate rows
    for (i=0; i<dt_rows; i++) {
        var raw_col = [];
        for (var j=0; j<dt_cols; j++) {
            // Replace any commas in row values
            raw_col.push(dataTable_arg.getFormattedValue(i, j, 'label').replace(/,/g,""));
        }
        // Add row to CSV text
        csv_out += raw_col.join(",")+"\r\n";
    }

    return csv_out;
}

Very nice, appreciate that~

it raise a bug when table has multi pages.
so i change "raw_col.push(dataTable_arg.getFormattedValue(i, j, 'label').replace(/,/g,""));"
like this
"raw_col.push(dataTable_arg.getFormattedValue(i, j).replace(/,/g,""));"
and it work
i remove "label",i think it no use.
https://developers.google.com/chart/interactive/docs/reference

Great Post.