[Newbies] Test if a class has a certain selector?

[Tobias Pape]

(resend, wrong from: mail)
Am 2012-04-28 um 01:01 schrieb Tobias Pape:

> 
> Am 2012-04-28 um 00:45 schrieb H. Hirzel:
> 
>> Hello
>> 
>> Is there a simpler way of writing
>> 
>>   Character class selectors includes: #cr
>> 
>> (= test if Character class has method  #cr)
> 
> Character canUnderstand: #cr
> 
> remember, its messages,
> =>
> ('a' respondsTo: #first) == (String canUnderstand: #first)
> 

Unless, of course, you really wanted to know whether

	Character class

knows about #cr. But bear in mind, Character class is not
the “class side” of Character but the Metaclass of Character

	Character class isKindOf: Metaclass "=> true"

The “class side” of Character is simply Character

	Character isKindOf: Class "=> true"

The “instance side” of Character is, you know it, 
a character itself

	$a isKindOf: Character "=> true"

==

So, if you want to know whether the “class side” of
Character knows of the method #cr, the correct one is:

	Character respondsTo: #cr

HTH

Best
	-Tobias