From: Steve Klabnik <steve@...>
Date: 2010-02-05T08:05:22+09:00
Subject: Re: Can Ruby Do This?

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$ irb
irb(main):001:0>  hash[:foo][:bar][:baz] = 123
NoMethodError: undefined method `[]' for nil:NilClass
        from (irb):1
        from /usr/bin/irb:12:in `<main>'
irb(main):002:0>  hash = { :foo => { :bar => { :baz => 123} } }
=> {:foo=>{:bar=>{:baz=>123}}}
irb(main):003:0> hash[:foo][:bar][:baz]
=> 123

I'm not sure if there's a way that's a little less verbose...

On Thu, Feb 4, 2010 at 10:58 PM, Mr Bubb <jcabraham@gmail.com> wrote:

> In Perl, you can create a hash of arbitrary depth like so:
>
> $hash->{foo}->{bar}->{baz} = 123;
>
> I've tried this in ruby:
>
> hash[:foo][:bar][:baz] = 123
>
> but I get nil.= errors
>
> I could of course do a check for null at each level, but oy, that's so
> cumbersome. Is there a ruby way?
>
> Thanks!
> --
> Posted via http://www.ruby-forum.com/.
>
>

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