p h.values_at[*ar]
should be
p h.values_at(*ar)
On Wed, May 1, 2013 at 12:50 PM, Love U Ruby <li...@ruby-forum.com> wrote:
> While the below code working :-
>
>
> m = {:a => 2, :b => 3,:c => 44,:g => 14}
> a = [:a,:b,:g]
> p m.values_at(*[:a,:b,:g]) #=> [2, 3, 14]
>
> why the below not working?
>
> h = {
> 'arg0' => '126150656000',
> 'arg1' => 'Intel(R) Core(TM) i7-2640M CPU @ 2.80GHz',
> 'arg2' => '2790',
> 'arg3' => '3276320768',
> 'arg4' => '8467496960',
> 'arg5' => 'Windows 7',
> 'arg7' => 'amd64',
> 'arg6' => '6.1',
> 'arg8' => '2',
> 'arg9' => '1920',
> 'arg10' => '1200',
> 'arg11' => '32',
> }
>
>
> p ar = h.keys.sort_by{|s| s[3..-1].to_i}
> p h.values_at[*ar]
> #=>`[]': wrong number of arguments (12 for 1..2) (ArgumentError)
>
> Where did I mistake?
>
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