getDoubleOrNull method
Implementation
double? getDoubleOrNull(String name, {double? defaults}) {
final value = getStringOrNull(name);
if (value == null || value == '') {
return defaults;
}
final parsed = double.tryParse(value);
if (parsed == null) {
throw ParsingException(
name,
value,
'Double field has unparsable double',
);
}
return parsed;
}