|Do you know where your variables are?|
Re^3: ChainMap of Hashes on CPAN?by BrowserUk (Pope)
|on Mar 23, 2013 at 18:34 UTC||Need Help??|
It's useful to avoid the overhead of concatenating very long hashes if you only need few lookups.
Then I think I'd use:
and save constructing a whole (class of) objects for something so trivial.
But, I don't ever remember having such a requirement; nor can I think of an actual use-case.
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