optString function

String optString(
  1. Map<String, dynamic> json,
  2. String key, [
  3. String fallback = ''
])

Implementation

String optString(Map<String, dynamic> json, String key, [String fallback = '']) {
  final value = json[key];
  if (value == null) return fallback;
  if (value is String) return value;
  return value.toString();
}