[erlang-questions] string concatenation efficiency

[Sergej Jurečko]

If your string is going to be sent over a socket or written to a file, an
iolist is always the most efficient: ["Item:{", ItemID, "}"]
If you must have flat strings, just use ++

Sergej

On Thu, Jan 28, 2016 at 8:22 AM, Khitai Pang <khitai.pang@REDACTED>
wrote:

> Hi,
>
> For string concatenation, which one of the following is the most efficient?
>
> 1)
> strings:join(["Item:{", ItemID, "}")], ""]
>
> 2)
> lists:append(["Item:{", ItemID, "}")])
>
> 3)
> "Item:{" ++ ItemID ++ "}"
>
> Here ItemID is a UUID.
>
>
> Thanks
> Khitai
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