df-sean
1
Hi all, this is my first post to the Ruby Forum. Cheers. And thanks for
helping out a newb.
Quesiton: How do you access multiple values from a hash?
For Example, I have a hash of computer names, and their associated user.
the_system = {
“computer-01”=>“jill”,
“computer-02”=>“jack”,
“computer-03”=>“bob”
}
If I want to access the user of one machine, this works great:
puts the_system[“computer-01”]
=>jill
But how do I return multiple user names? (The below throws an error:
‘wrong number of arguments’.)
puts the_system[“computer-01”, “computer-02”]
Thanks.
df-sean
2
Sean S.on wrote:
But how do I return multiple user names? (The below throws an error:
‘wrong number of arguments’.)
puts the_system[“computer-01”, “computer-02”]
the_system.values_at(“computer-01”, “computer-02”)
df-sean
3
El Miércoles, 2 de Septiembre de 2009, Sean S.on escribió:
"computer-03"=>"bob"
‘wrong number of arguments’.)
puts the_system[“computer-01”, “computer-02”]
the_system.values_at(“computer-01”,“computer-02”)
=> [“jill”, “jack”]
Note that it returns an Array.
Note: Tested in Ruby1.9 but not in 1.8.
df-sean
4
Joel VanderWerf wrote:
Sean S.on wrote:
But how do I return multiple user names? (The below throws an error:
‘wrong number of arguments’.)
puts the_system[“computer-01”, “computer-02”]
the_system.values_at(“computer-01”, “computer-02”)
AWESOME! Thanks for the quick reply Joel.
df-sean
5
Iñaki Baz C. wrote:
El Miércoles, 2 de Septiembre de 2009, Sean S.on escribió:
"computer-03"=>"bob"
‘wrong number of arguments’.)
puts the_system[“computer-01”, “computer-02”]
the_system.values_at(“computer-01”,“computer-02”)
=> [“jill”, “jack”]
Note that it returns an Array.
Note: Tested in Ruby1.9 but not in 1.8.
And thanks to you as well Iñaki.