TO_STRING_NULLABLE function

String? TO_STRING_NULLABLE(
  1. dynamic value
)

Implementation

String? TO_STRING_NULLABLE(dynamic value) {
  if (value is double) return value.toString();
  if (value is int) return value.toString();
  if (value == null) return null;
  if (value.toString().trim() == '') return '';
  if (value.toString().trim().toLowerCase() == 'null') return null;
  if (value.toString().trim().toLowerCase() == 'undefined') return null;
  return value.toString();
}