gistfile1.txt

# mam dwie tablice:
# a = [1,2] 
# b = [3,4], 
# chce je polaczyc w nastepujacy sposob: [[1,3],[2,4]]

# pytam wiec irba jak to zrobic :-)

>> a = [1,2]
=> [1, 2]
>> b = [3,4]
=> [3, 4]
>> a.what?(b) == [[1,3],[2,4]]
[1, 2].zip([3, 4]) == [[1, 3], [2, 4]]
=> ["zip"]
=> 1.240 seconds :)
>> a
=> [1, 2]
>> a.zip(b)
=> [[1, 3], [2, 4]]

# inny przyklad:
>> c = (1..3).to_a
=> [1, 2, 3]
>> c.what? == [3,2,1]
[1, 2, 3].reverse! == [3, 2, 1]
[1, 2, 3].reverse == [3, 2, 1]
=> ["reverse!", "reverse"]

# kolejny:
>> "  abc           ".what? == "abc"
"  abc           ".strip! == "abc"
"  abc           ".strip == "abc"
=> ["strip!", "strip"]

# to jest piekne ;-)