boolOrNull static method

bool? boolOrNull(Object? value)

Implementation

static bool? boolOrNull(Object? value) {
  if (value is bool) return value;
  if (value is num) {
    if (value == 1) return true;
    if (value == 0) return false;
  }
  if (value is String) {
    switch (value.trim().toLowerCase()) {
      case 'true':
      case '1':
      case 'yes':
      case 'y':
        return true;
      case 'false':
      case '0':
      case 'no':
      case 'n':
        return false;
    }
  }
  return null;
}