Re: Mini-Tutorial: Dereferencing Syntax


There's more than one way to do things
	PerlMonks

by tobyink (Canon)

on Jun 20, 2012 at 19:50 UTC ( #977462=note: print w/replies, xml )

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

@hash{'key1', 'key2'}

$hash{'key1', 'key2'}
[download]

The first one is basically a shorthand for:

($hash{'key1'}, $hash{'key2'})
[download]

The second one is:

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

... 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 (Chancellor) on Jun 20, 2012 at 21:51 UTC
And similarly (though not identically, certainly) for arrays.	[reply]
Re^2: Mini-Tutorial: Dereferencing Syntax by ikegami (Patriarch) 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.	[reply]

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