sum method
Implementation
dynamic sum(List data, String name) {
if (data.isNotEmpty) {
Decimal result = Decimal.zero;
for (int i = 0; i < data.length; i++) {
if (data[i] is List) {
result += Decimal.parse(sum(data[i], name).toString());
} else {
result += Decimal.parse(data[i][name].toString());
}
}
return result.toDouble();
} else {
return null;
}
}