If I've written a class method that calls itself recursively is there a problem or any difference between doing something like this:
class << self
def mymeth( n )
blah blah...
mymeth( n + 1)
end
end
as opposed to this?
class << self
def mymeth( n )
blah blah...
Classname.mymeth( n + 1 )
end
end
I wrote something a few minutes ago in the first way, and it works (those virgin sacrifices must be working their magic) but wondered if that's A Really Bad Thing To Do™, or if it's more like wearing socks with sandals on a warm day?
irb(main):006:0> class X
irb(main):007:1> def self.r(n) p n; r(n-1) if n > 0 end
irb(main):008:1> end
=> nil
irb(main):009:0> X.r 5
5
4
3
2
1
0
=> nil
You do not need "Classname." because "self" is the class instance.
Actually placing the class name could do more harm than good (think of
"private" and renaming the class).
Kind regards
robert
···
On Wed, Oct 13, 2010 at 1:24 PM, Iain Barnett <iainspeed@gmail.com> wrote:
Hi,
If I've written a class method that calls itself recursively is there a problem or any difference between doing something like this:
class << self
def mymeth( n )
blah blah...
mymeth( n + 1)
end
end
as opposed to this?
class << self
def mymeth( n )
blah blah...
Classname.mymeth( n + 1 )
end
end
I wrote something a few minutes ago in the first way, and it works (those virgin sacrifices must be working their magic) but wondered if that's A Really Bad Thing To Do™, or if it's more like wearing socks with sandals on a warm day?
Ok, thanks very much. Nice to know my natural way was the best way
Regards,
Iain
···
On 13 Oct 2010, at 12:43, Robert Klemme wrote:
You do not need "Classname." because "self" is the class instance.
Actually placing the class name could do more harm than good (think of
"private" and renaming the class).
