getDouble method

Future<double?> getDouble(
  1. String key, {
  2. double? defaultValue,
})

Retrieve a double value

Implementation

Future<double?> getDouble(String key, {double? defaultValue}) async {
  final value = await getString(key);
  if (value == null || value.isEmpty) return defaultValue;
  return double.tryParse(value) ?? defaultValue;
}