[lnkForumImage]
TotalShareware - Download Free Software
Confronta i prezzi di migliaia di prodotti.
Asp Forum
 Home | Login | Register | Search 


 

Forums >

comp.lang.ruby

the difference between for-loop and each

Andreas S

10/19/2007 7:21:00 PM


Hopefully (I'm sure) somebody can shed a light on this. This caught me by surprise

ruby 1.8.6 (2007-03-13 patchlevel 0) [i686-linux]
test.rb:
TEST = []
def procs &block
TEST << block
end

#for n in [1,2,3] do
[1,2,3].each do |n|
procs do
puts "#{n}"
end
end

TEST.each do |t|
puts t
t.call
end

With for loop
>> ruby test.rb
#
3
#
3
#
3

With each
>> ruby test.rb
#
1
#
2
#
3

I thought for-loop behaves the same as each. Apparently not. Why is this and is this a good thing?

Thank you in advance
-andre
_________________________________________________________________
Windows Live Hotmail and Microsoft Office Outlook – together at last.  Get it now.
http://office.microsoft.com/en-us/outlook/HA102225181033.aspx?pid=CL10...