public IReadOnlyListExt <TOut> Map <TOut>(Func <T, TOut> map) { return(MappedReadOnlyListSpan <T, TOut> .Create(_innerList, map, _offset, Count)); }
public IReadOnlyListExt <TOut> Slice(int start, int length) { return(MappedReadOnlyListSpan <TIn, TOut> .Create(_innerList, _map, start, length)); }