From: Douglas Seifert <doug@...>
Date: 2009-09-23T10:53:45+09:00
Subject: Re: Array of hashes issue

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>
>
> Wish there was an easier way to get a value out of a hash by key.
> Someone on the board might know.
>
>
> Getting values out of a hash by key is easy.  I think the issue you were
having is you were unclear exactly what the key was and maybe were confused
about the difference between a Symbol and String in Ruby.  A Symbol is kind
of like an interned String (to borrow some Java speak).  They are separate
classes and both may be used as hash keys.  So this works:

h = {}
h[:key] = 'my key is a Symbol'
h['key'] = 'my key is a String'

p h[:key]
"my key is a Symbol"
p h['key']
"my key is a String"

Getting a value out of the hash is as simple as it is in PHP -- just use the
[] method.

-Doug Seifert

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