StringPair pair = substringSourceExcluded(source, offset, 0); if (pair == null) return; // error
StringPair pair = substringSourceExcluded(source, offset, 0); if (pair == null) return; // error
StringPair pair = substringSourceExcluded(source, offset, count); if (pair == null) return; // error
throw new DOMException(DOMException.INDEX_SIZE_ERR, new String()); StringPair pair = substringSourceExcluded(source, offset, count); if (pair == null) return;