element method
Returns the JSON array element at the offset
if it exists,
otherwise returns null. Negative offsets are supported.
Implementation
Node? element(int offset) {
final v = value;
if (v is List) {
final index = offset < 0 ? v.length + offset : offset;
if (index >= 0 && index < v.length) return _element(v, index);
}
return null;
}