mapToCsv method
Converts a map to a CSV string.
Implementation
String mapToCsv(Map<dynamic, dynamic> input) {
var output = '';
for (final entry in input.entries) {
final key = entry.key;
dynamic value = entry.value;
if (value is Map) {
value = mapToCsv(value);
} else if (value is List) {
value = value.join(',');
}
output += '"$key","$value"\n';
}
return output;
}