Why does Hash#values_at not working?

Rails
1

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® Core™ 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?

2

p h.values_at[*ar]

should be

p h.values_at(*ar)

On Wed, May 1, 2013 at 12:50 PM, Love U Ruby [email protected]
wrote:

‘arg0’ => ‘126150656000’,
‘arg11’ => ‘32’,
Posted via http://www.ruby-forum.com/.

–

3

Jim ruther Nill wrote in post #1107440:

p h.values_at[*ar]

should be

p h.values_at(*ar)

On Wed, May 1, 2013 at 12:50 PM, Love U Ruby [email protected]
wrote:

‘arg0’ => ‘126150656000’,
‘arg11’ => ‘32’,
Posted via http://www.ruby-forum.com/.

–

Thanks! It was a typo.