Re: vim: comment regex

On Monday, August 6, 2012 1:08:44 PM UTC-5, Bee wrote:
> On Aug 6, 8:48 am, Ben Fritz <fritzophre...@gmail.com> wrote:
>
> > let pattern='apples'      " apples are healthy
>
> > let pattern.='\|bananas'  " and bananas are delicious
>
>
>
> These do the same thing:
>
> let @/ = @/ . pad[c]
>
> let @/ .= pad[c]
>
>
>
> Is there an advantage (speed, space) to use one rather the other?
>
>
>
> Bill

I don't know the internals of Vim's implementation. It might be slightly faster to use "let var .= val" rather than "let var = var . val" because Vim might use extra resources to evaluate var before concatenating val in the latter, but conceptually they do the same thing and I have no reason no suspect there is a performance difference one way or the other. I just like using .= because it's less typing and makes for much shorter lines; especially when you use long variable names, or fields of a dictionary object or array items rather than regular variables.

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