getDouble method

double getDouble(
  1. String key, [
  2. double fallback = 0
])

Implementation

double getDouble(String key, [double fallback = 0]) {
  final v = getValue(key);
  if (v is num) return v.toDouble();
  if (v is String) return double.tryParse(v) ?? fallback;
  return fallback;
}