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in reply to Mini-Tutorial: Dereferencing Syntax

It's also worth noting that the following are two completely different things.

@hash{'key1', 'key2'} $hash{'key1', 'key2'}

The first one is basically a shorthand for:

($hash{'key1'}, $hash{'key2'})

The second one is:

$hash{join($;, 'key1', 'key2')}

... where $; is the subscript separator, which defaults to \034.

perl -E'sub Monkey::do{say$_,for@_,do{($monkey=[caller(0)]->[3])=~s{::}{ }and$monkey}}"Monkey say"->Monkey::do'

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Re^2: Mini-Tutorial: Dereferencing Syntax
by jdporter (Canon) on Jun 20, 2012 at 21:51 UTC

    And similarly (though not identically, certainly) for arrays.

Re^2: Mini-Tutorial: Dereferencing Syntax
by ikegami (Pope) on Sep 17, 2012 at 05:36 UTC
    The difference between hash lookups and hash slices has nothing to do with references or how to use them. I shall not add such a note.