On 30 Jul 2009, at 18:31 , Falcolas wrote:
On Jul 29, 9:06 pm, r <rt8...@gmail.com> wrote:
1.) No need to use "()" to call a function with no arguments.
Python --> "obj.m2().m3()" --ugly
Ruby --> "obj.m1.m2.m3" -- sweeet!
Man, i must admit i really like this, and your code will look so much
cleaner.
I personally would not prefer this, and would likely continue to use
(), precisely for code clarity - let me explain:
foo.nextval
foo.val
foo.previousval
Which of the calls above referenced instance variables
Well, that's very simple: none of them. In Ruby (as in Smalltalk),
public instance variables simply don't exist.
and which ones called functions which changed the internal state of
foo?
That you can't say, but neither can you say in Python as they could
all be properties. And of course just because it's a method doesn't
mean it mutates the object.
I would have
trouble saying, just based on the calls above. I would have to go back
to the definition or documentation of foo to identify which is doing
what. On the other hand, the following gives a better clue as to what
is happening (granted not perfect, but better):
Well... it doesn't give much of a clue no really.
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