[erlang-questions] Which is best? string:concat or ++?

Fred Hebert <>
Mon May 7 16:50:38 CEST 2012

Cowboy does accept IOLists. They're very rarely going to *not* be the 
fastest data structure to handle the concatenation strings to be output, 
in my experience. I do recommend them for any and all appending and 
prepending that needs to be done with web servers, files, etc.

On Mon May 7 10:48:19 2012, Wes James wrote:
> On Mon, May 7, 2012 at 8:18 AM, Paul Barry<> 
> wrote:
>> I take it that doing it that way is "faster" than string manipulation
>> (or is there some other reason for this suggestion)?
> Based on some discussion I've seen on the list in the past, I believe
> binary is faster. In my case, I'm using binaries to construct html
> chunks as I'm using cowboy, but I think cowboy can also use io lists,
> like Fred mentioned.
> -wes
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