newbie: assign values/array to variables

[Mark V]

Hi,
Thanks for all the fantastic work that has gone into ruby. Even
though I am new it has proved to be very impressive.
To my question.
I've seen the following code:

@vara, @varb = "ab,ac,ad,ae".split(",")

the way @vara and @varb were used makes me think the writer expected
the following:

puts @vara.inspect # "ab"
puts @varb.inspect # ["ac", "ad", "ae"]

However when I run this code I get

puts @vara.inspect # "ab"
puts @varb.inspect # "ac"

Is there a way to achieve the writer seemed to have in mind?

Thanks in advance
Mark

 

[dblack]

Hi --

Hi,
Thanks for all the fantastic work that has gone into ruby. Even
though I am new it has proved to be very impressive.
To my question.
I've seen the following code:

@vara, @varb = "ab,ac,ad,ae".split(",")

the way @vara and @varb were used makes me think the writer expected
the following:

puts @vara.inspect # "ab"
puts @varb.inspect # ["ac", "ad", "ae"]

However when I run this code I get

puts @vara.inspect # "ab"
puts @varb.inspect # "ac"

Is there a way to achieve the writer seemed to have in mind?

Yes:

@vara, *@varb = "ab,ac,ad,ae".split(",")


David

--
Q. What is THE Ruby book for Rails developers?
A. RUBY FOR RAILS by David A. Black (http://www.manning.com/black)
(See what readers are saying! http://www.rubypal.com/r4rrevs.pdf)
Q. Where can I get Ruby/Rails on-site training, consulting, coaching?
A. Ruby Power and Light, LLC (http://www.rubypal.com)

 

[Gary Wright]

Hi,
Thanks for all the fantastic work that has gone into ruby. Even
though I am new it has proved to be very impressive.
To my question.
I've seen the following code:

@vara, @varb = "ab,ac,ad,ae".split(",")

the way @vara and @varb were used makes me think the writer expected
the following:

puts @vara.inspect # "ab"
puts @varb.inspect # ["ac", "ad", "ae"]

@vara, *@varb = "ab,ac,ad,ae".split(",")

The asterisk (or 'splat') operator is the key.

Gary Wright

 

[Mark Van De Vyver]

Thank you David and Gary!
Regards
Mark

Hi,
Thanks for all the fantastic work that has gone into ruby. Even
though I am new it has proved to be very impressive.
To my question.
I've seen the following code:

@vara, @varb = "ab,ac,ad,ae".split(",")

the way @vara and @varb were used makes me think the writer expected
the following:

puts @vara.inspect # "ab"
puts @varb.inspect # ["ac", "ad", "ae"]

@vara, *@varb = "ab,ac,ad,ae".split(",")

The asterisk (or 'splat') operator is the key.

Gary Wright

 

[Brian Candler]

To my question.
I've seen the following code:

@vara, @varb = "ab,ac,ad,ae".split(",")

the way @vara and @varb were used makes me think the writer expected
the following:

puts @vara.inspect # "ab"
puts @varb.inspect # ["ac", "ad", "ae"]

However when I run this code I get

puts @vara.inspect # "ab"
puts @varb.inspect # "ac"

Is there a way to achieve the writer seemed to have in mind?

@vara, *@varb = "ab,ac,ad,ae".split(",")