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comp.lang.ruby

Accessing a hash in a hash

Justin To

6/5/2008 6:56:00 PM


Hello, I'm new to Ruby and am trying this example problem. I'm suppose
to have a hash key whose value is a hash.
Ex. hash['a'] => hash

Then, I'm suppose to change the second hash's keys and values...

how do i go about this?

Hash1: Key => ( Hash2: aKey => aValue )

I want to change aKey and aValue

Hash1[key]??????

How do I index it, or access it??

Thanks in advance!!!!
--
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3 Answers

Justin To

6/5/2008 7:17:00 PM

0

I figured it out
--
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Damjan Rems

6/5/2008 7:17:00 PM

0


Blind guess.

How about hash[key][key]


by
TheR
--
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Rodrigo Bermejo

6/5/2008 7:17:00 PM

0

Justin To wrote:
>
> Hello, I'm new to Ruby and am trying this example problem. I'm suppose
> to have a hash key whose value is a hash.
> Ex. hash['a'] => hash
>
> Then, I'm suppose to change the second hash's keys and values...
>
> how do i go about this?
>
> Hash1: Key => ( Hash2: aKey => aValue )
>
> I want to change aKey and aValue
>
> Hash1[key]??????
>
> How do I index it, or access it??
>
> Thanks in advance!!!!
---> a["b"]["c"]=2

D:>irb
irb(main):001:0> a={}
=> {}
irb(main):002:0> a["b"]={"c" => "1"}
=> {"c"=>"1"}
irb(main):004:0> require 'pp'
=> true
irb(main):005:0> pp a
{"b"=>{"c"=>1}}
=> nil
irb(main):006:0> a["b"]["c"]=2
=> 2
irb(main):007:0> pp a
{"b"=>{"c"=>2}}
=> nil
--
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