Re: Proposal: Trailing comma in function calls

[Mike Nelson <mikestar1313@...>]

On 6/4/2014 6:01 PM, Luiz Henrique de Figueiredo wrote:
> > 	load(source,,,MY_ENV)
> > 	first,,third = something()
> The idiom in these cases would be
>
> 	load(source,_,_,MY_ENV)
> 	first,_,third = something()
>
> Perhaps it'd be helpful to have a second predeclared local named "_",
> as a cheap throw-away variable...
Rather like Go, where _ is predeclared for the same purpose (would be 
surprised if they didn't get the idea from Lua). What does everyone 
think about also outlawing _ as an rvalue, as Go does?
This would firmly establish _ as a throw-away variable, but is it worth 
the internal complexity to enforce it? Perhaps the middle way of 
predeclaring but not enforcing is best.