Beefy Boxes and Bandwidth Generously Provided by pair Networks
XP is just a number
 
PerlMonks  

Re^3: Idiom to return 0 or random number of array elements

by tobyink (Abbot)
on Dec 07, 2012 at 12:29 UTC ( #1007728=note: print w/ replies, xml ) Need Help??


in reply to Re^2: Idiom to return 0 or random number of array elements
in thread Idiom to return 0 or random number of array elements

With $hash{...} a scalar context is imposed on the key. With a slice like @hash{...} list context is imposed on the key.

use 5.010; use strict; sub WA { return wantarray } my %hash = ('' => 'Hello ', '1' => 'World'); say $hash{ WA() }, @hash{ WA() };
perl -E'sub Monkey::do{say$_,for@_,do{($monkey=[caller(0)]->[3])=~s{::}{ }and$monkey}}"Monkey say"->Monkey::do'


Comment on Re^3: Idiom to return 0 or random number of array elements
Select or Download Code

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://1007728]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others imbibing at the Monastery: (5)
As of 2014-12-25 16:51 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    Is guessing a good strategy for surviving in the IT business?





    Results (160 votes), past polls