Beefy Boxes and Bandwidth Generously Provided by pair Networks
P is for Practical

Re: Re: quick question about hash element access

by Chmrr (Vicar)
on Jun 28, 2003 at 01:11 UTC ( #269787=note: print w/replies, xml ) Need Help??

in reply to Re: quick question about hash element access
in thread quick question about hash element access

And with very few changes you can make it an lvalue, so you can use it to assign to:

sub nested : lvalue { @_ == 1 ? $_[0] : nested($_[0]{$_[1]}, @_[2..$#_]); }

..and now you can say:

nested(\%hash, a => b => c =>) = "VALUE";

TThis can lead to such fun looking constructs as nested $hashref, a => b => c => d => = 42; Note that this code will only work under perl 5.6.0 or later, though; earlier perls had more restricted definitions of lvalues. See also descending a tree of hash references.

perl -pe '"I lo*`+$^X$\"$]!$/"=~m%(.*)%s;$_=$1;y^`+*^e v^#$&V"+@( NO CARRIER'

Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://269787]
[LanX]: hmm strange, when doesn a module appear on CPAN but is excluded on MetaCPAN?
[shmem]: LanX, this?

How do I use this? | Other CB clients
Other Users?
Others imbibing at the Monastery: (7)
As of 2018-03-21 21:44 GMT
Find Nodes?
    Voting Booth?
    When I think of a mole I think of:

    Results (271 votes). Check out past polls.