[erlang-questions] performing lists:keysearch on a list of records

Dmitry Kolesnikov dmkolesnikov@REDACTED
Mon Nov 23 09:08:38 CET 2015


You are on safe side with you approach.
Just use 

The following expression returns the position of the specified field in the tuple representation of the record

as it is defined by

Best Regards, 

> On Nov 23, 2015, at 10:00 AM, YuanZhiqian <on-your-mark@REDACTED> wrote:
> Hi guys,
>   Glad to meet everyone here. 
>   I have a little question about the lists:keysearch function that I would like to search a record in a list by using one of its fields, because lists:keysearch is tuple-oriented and records is implemented internally as tuples, so I this the function should work as well to records, and it does as I tested in the shell. ( lists:keysearch(Key, 2, List), supposing the key is in the first field )
>   However I wonder if there's any side effects in this behavior, since I was taught that never access records' fields directly in the way of treating tuples. 
>   P.S. There's another question here, is there any difference between lists:keyfind/3 and lists:keysearch/3? I can tell any difference between them except for the return value's formats.
> Mvh
> Zhiqian
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