Re: Its okey or not?

Thank you all ::)

понедельник, 9 февраля 2026 г. в 21:06:14 UTC+3, Martin Eden: 

>
> On 2026-02-09 18:21, blogdron (BLOGDRON) wrote:
> > "function x() return end" not equal "function x() return nil end"?
> > This case is for all Lua versions.
>
> Hello blogdron,
>
> Lua functions are not crippled "functions" from C or FORTRAN.
> They return sequence of values.
>
> So "return nil, nil" is two values, "return nil" is one and "return"
> is zero. You can even count this way. Somewhat similar to Church numerals.
>
> Funny part is that parenthesis () around sequence always return
> sequence with one element. So zero sequence becomes sequence with one
> "nil":
>
>   Lua 5.5.0  Copyright (C) 1994-2025 Lua.org, PUC-Rio
>   > f = function() return end
>   > print(f())
>
>   > print((f()))
>   nil
>
> -- Martin
>
>

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