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comp.lang.ruby

about Array methods

Kyung won Cheon

1/9/2009 2:50:00 AM

l = [1,2,3,4,5]
head = l[0..2]
p head # => [1,2,3]
p l # => [1,2,3,4,5]

# I want '[4,5]'

# Is that method in Array?
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3 Answers

Matthew Moss

1/9/2009 3:00:00 AM

0


On Jan 8, 2009, at 8:49 PM, Kyung won Cheon wrote:

> l = [1,2,3,4,5]
> head = l[0..2]
> p head # => [1,2,3]
> p l # => [1,2,3,4,5]
>
> # I want '[4,5]'
>
> # Is that method in Array?

l = l[3..-1]

Peña, Botp

1/9/2009 3:16:00 AM

0

From: Matthew Moss [mailto:matt@moss.name]=20
# > p l # =3D> [1,2,3,4,5]
# >
# > # I want '[4,5]'
# >
# > # Is that method in Array?
#=20
# l =3D l[3..-1]
#=20

also,=20

array.last(2)

Mathijs

1/9/2009 9:09:00 AM

0

Kyung won Cheon schreef:
> l = [1,2,3,4,5]
> head = l[0..2]
> p head # => [1,2,3]
> p l # => [1,2,3,4,5]
>
> # I want '[4,5]'
>
> # Is that method in Array?

p l-head # => [4,5]