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

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?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://269787]
help
Chatterbox?
[GrandFather]: That's a whole different time zone LanX

How do I use this? | Other CB clients
Other Users?
Others imbibing at the Monastery: (3)
As of 2017-02-21 06:11 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?
    Before electricity was invented, what was the Electric Eel called?






    Results (307 votes). Check out past polls.