On Sat, Aug 29, 2015 at 11:48 AM, Yichao Yu <yyc1...@gmail.com> wrote:
> On Sat, Aug 29, 2015 at 11:17 AM, Diego Javier Zea <diego...@gmail.com> wrote:
>> Hi!
>>
>> I'm confused with this...
>>
>> When do I need to use Symbol instead of ASCIIString on function arguments?
>>
>> Which of the following is the best and Julian definition?
>
> Apart from their indented use (symbol in code/expression) symbols are
> more or less like enums (or at least in your use case). I would
> suggest using enums instead of either symbols or string.
In another word, if there's only a few possible values, use enum
unless it is somehow not possible (because it's not in 0.3 maybe?)
Otherwise, if it can take arbitrary values and is not a symbol in the
code, use string (not necessarily ASCIIString either).
>
>>
>>
>> julia> myfunstr{T}(x::T; method::ASCIIString="one") = method=="one" ?
>> one(T)+x : x
>> myfunstr (generic function with 1 method)
>>
>>
>> julia> myfunsym{T}(x::T; method::Symbol=:one) = method==:one ? one(T)+x : x
>> myfunsym (generic function with 1 method)
>>
>>
>> julia> myfunstr(10)
>> 11
>>
>>
>> julia> myfunsym(10)
>> 11
>>
>>
>> Thanks in advance,
>> Best
