description

# convert method Null safety

String convert (

1. List<int> bytes,
2. [int start = 0,
3. int? end]

)
inherited

Converts the `bytes` (a list of unsigned 7- or 8-bit integers) to the corresponding string.

If `start` and `end` are provided, only the sub-list of bytes from `start` to `end` (`end` not inclusive) is used as input to the conversion.

## Implementation

    String convert(List<int> bytes, [int start = 0, int? end]) {
      end = RangeError.checkValidRange(start, end, bytes.length);
      // TODO(38725): Remove workaround when assignment promotion is implemented
      if (end == null) {
        throw RangeError("Invalid range");
      }
      for (var i = start; i < end; i++) {
        var byte = bytes[i];
        if ((byte & ~_subsetMask) != 0) {
          if (!_allowInvalid) {
            throw FormatException("Invalid value in input: $byte");
          }
          return _convertInvalid(bytes, start, end);
        }
      }
      return String.fromCharCodes(bytes, start, end);
    }