Re: [FUN] A bit of code golfing

["Soni L." <fakedme@...>]

On 28/09/16 07:53 PM, Egor Skriptunoff wrote:
> On Thu, Sep 29, 2016 at 1:43 AM, Soni L. <fakedme@gmail.com 
> <mailto:fakedme@gmail.com>> wrote:
>
>
>     On 28/09/16 07:06 PM, Egor Skriptunoff wrote:
>
>
>         As for now, two tasks to solve:
>         1) Find 41-byte solution compatible with Lua 5.1, 5.2 and 5.3
>         2) Find 36-byte solution for latest version of Lua
>
>     NVL=load"return({...})[#...+2]or..."
>
> OK, 36-byte solution for latest Lua version has been found (exactly as 
> mine one)!
>
> Only one task is remaining to solve.
> Try to find 41-byte solution for Lua 5.1
> My solution for the remaining task is based on some Lua feature which 
> looks like a design bug for me.

Hmm...

This is a 42-byte one, but I cannot seem to find a smaller one:

function NVL(a,b)return(a:gsub("^$",b))end

Except for this one, but it returns an extra value:

function NVL(a,b)return a:gsub("^$",b)end

(Altho still passes the test cases)

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