jsonGet static method

dynamic jsonGet(dynamic json, String code)

Implementation

static dynamic jsonGet(dynamic json, String code) {
  if (json == null) return null;

  int firstDotIndex = code.indexOf('.');
  if (firstDotIndex == -1) {
    if (isNumeric(code)) {
      final index = int.tryParse(code);
      if (index == null) return null;
      return json[index];
    }
    return json[code];
  }

  final firstKey = code.substring(0, firstDotIndex);
  final leaveKey = code.substring(firstDotIndex + 1);

  if (isNumeric(firstKey)) {
    final index = int.tryParse(firstKey);
    if (index == null) return null;
    return jsonGet(json[index], leaveKey);
  }

  return jsonGet(json[firstKey], leaveKey);
}