Tentando rowspan

server/services/eventos.js

@@ -23,15 +23,16 @@ _out.println('<div style="display: flex; justify-content: center; margin-top: 80
 
             for (const dbRecord of dbRecords) {
 
-                 const length = copiaDbRecords.length
+                 const initialLength = copiaDbRecords.length
                  copiaDbRecords = copiaDbRecords.filter(r => r.getString("categoria") != dbRecord.getString("categoria"))
-                    
+                 const lengthCategoria = initialLength - copiaDbRecords.length                                     
+
                 _out.println('<tr style="height: 35px;">')
                     _out.println(`<td>${dbRecord.getString("titulo")}</td>`)
                     _out.println(`<td>${dbRecord.getString("data")}</td>`)
                     _out.println(`<td>${dbRecord.getInt("capacidade")}</td>`)
                     _out.println(`<td>${dbRecord.getDouble("preco")}</td>`)
-                    {(length - copiaDbRecords.length) > 0 && _out.println(`<td rowspan="${cat.length}">${dbRecord.getString("categoria")}</td>`)}
+                    {lengthCategoria > 0 && _out.println(`<td rowspan="${lengthCategoria}">${dbRecord.getString("categoria")}</td>`)}
                 _out.println('</tr>')
             }