2014-07-09 17:32 GMT+02:00 Timothy Baldridge <[email protected]>:
> (name :foo)
>
> will return the name as a string
>
> (symbol (name :foo))
>
> Converts the name of the keyword to a symbol
>
It is not even necessary. I changed to keywords. The code uses:
`(You see a ~obj on the floor.)
And it is displayed as:
You see a whiskey on the floor.
You see a bucket on the floor.
Maybe it does not work in all cases: so I need to do some testing.
Let change the rest also to keywords.
> On Wed, Jul 9, 2014 at 9:28 AM, Cecil Westerhof <[email protected]>
> wrote:
>
>> 2014-07-09 17:18 GMT+02:00 Thomas Heller <[email protected]>:
>>
>> Oh and its rare (outside of macros) to use symbols like that. Usually
>>> you'd use keywords.
>>>
>>> (def object-locations
>>> {:whiskey :living-room})
>>>
>>
>> It is from 'Land of Lisp'. The symbols are printed. Or is it possible to
>> print the keyword without the :?
>>
>>
>>
>>> On Wed, Jul 9, 2014 at 5:03 PM, Thomas Heller <[email protected]>
>>> wrote:
>>>
>>>> Short and simple answer: NullPointerException
>>>>
>>>> (def object-locations nil)
>>>>
>>>> (object-locations 'bucket) will throw
>>>> ('bucket object-locations) => nil
>>>>
>>>> HTH,
>>>> /thomas
>>>>
>>>> On Wednesday, July 9, 2014 3:48:53 PM UTC+2, Cecil Westerhof wrote:
>>>>>
>>>>> When you have:
>>>>> (def object-locations {
>>>>> 'whiskey 'living-room
>>>>> 'bucket 'living-room
>>>>> 'chain 'garden
>>>>> 'frog 'garden
>>>>> 'dummy 'nowhere
>>>>> 'test 'nowhere
>>>>> })
>>>>>
>>>>> You can retrieve the location of the bucket with:
>>>>> (object-locations 'bucket)
>>>>> and with:
>>>>> ('bucket object-locations)
>>>>>
>>>>> Personally I find the first better, but ‘Clojure Programming' uses the
>>>>> second possibility. What is the better way and why?
>>>>>
>>>>
--
Cecil Westerhof
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