and a little bit messy -LW
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good chemistry is complicated, and a little bit messy -LW |
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Re: Passing array to a subroutineby Anonymous Monk |
| on Sep 13, 2017 at 14:14 UTC ( [id://1199316]=note: print w/replies, xml ) | Need Help?? |
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Conceptually, a "reference" is a piece of data which refers to another piece of data somewhere else. Let's say that you have a function that takes two arguments. If, say, the second of those arguments is a reference, the subroutine has access to everything that the reference refers-to. A piece of data will not be garbage-collected as long as any references to it exist anywhere.
In Section
Seekers of Perl Wisdom
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