superpollo wrote:
Masklinn wrote:
...
That's an interesting point, but not relevant at the end of the day:
`foo.length` and `length(foo)` have the same "practicality". On the
other hand Ruby can be praised for the coherence: everything's a
method period end of the story; while Python does have a dichotomy
between methods and functions/generic methods (whether or not that
dichotomy bothers users is another issue).
...
how would you correct a newbie (like me) who says:
"well, the main difference between a function and a method (from the
caller's pow) is a syntactic one:
fun(obj, arguments)
as opposed to:
obj.met(arguments)
but the effect is just about the same."
?
bye
My suggestion
- OO programming:
length(foo) calls the foo instance(or class for some language) length method
length(bar) calls the bar instance length method, it is **not** the same
than the foo method
- non OO programming:
length(foo) calls the length function with foo as parameter
length(bar) calls the **same** length function with the bar parameter
(so you better make sure length is handling both foo and bar)
So the difference is definitely **not** a syntactic one, but it is true
that the syntax obj.method() better illustrates the bind mechanism of
the OO programming.
JM
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