[erlang-questions] how to make beautifulll code of this working code

[Roelof Wobben]

Op 10-8-2015 om 20:18 schreef Michael Nisi:
> Could we do my homework too?
>


This is not homework.

Im self learning Erlang.

Roelof

>
>> On 10.08.2015, at 19:25, Garrett Smith <g@REDACTED> wrote:
>>
>> Personally I find the Erlang docs excellent, so this:
>>
>> http://erlang.org/doc/man/re.html#split-2
>>
>> Roelof, I recommend that you spend some cycles reading these as a
>> matter of course when you're using a function. The docs will help you
>> get things right and you'll start to absorb some Erlang zen. The list
>> is great to help after you've done that and still have questions.
>>
>> This link provides an index, which might also be helpful for finding
>> the right module and function in the first place:
>>
>> http://erldocs.com
>>
>>> On Mon, Aug 10, 2015 at 11:33 AM, Garry Hodgson <garry@REDACTED> wrote:
>>> right, because re.split() returns a list of binaries ( <<"2012">> )
>>> where string:tokens() returns a list of strings ( "2012" ).
>>>
>>> so you either need to see if you can convince re:split() to
>>> return strings, or you need to coerce its output values
>>> from binaries to lists prior to converting those lists to integers.
>>>
>>>
>>>
>>>> On 8/10/15 12:09 PM, Roelof Wobben wrote:
>>>>
>>>> Op 10-8-2015 om 17:59 schreef Garry Hodgson:
>>>>> date_parts(Date) ->
>>>>>     [list_to_integer(N) || N <- string:tokens(Date,"-")].
>>>>
>>>> When testing I see this output:
>>>>
>>>> 2> dates:date_parts("2012-02-02").
>>>> ** exception error: bad argument in function list_to_integer/1 called as
>>>> list_to_integer(<<"2012">>) in call from dates:'-date_parts/1-lc$^0/1-0-'/1
>>>> (dates.erl, line 6)
>>>>
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