``` if (it.size > 0) { ...

# tornadofx

[pike]

if (it.size > 0) {
                        it.getJsonObject(0).keys.forEachIndexed { index, keyName ->
                            val column = TableColumn<ObservableList<JsonValue>, String>(keyName)
                            column.setCellValueFactory {
                                ReadOnlyObjectWrapper<String>(it.value[index].toString()) }
                            resultTable.columns.add(column)
                        }
                        
                    }