Beefy Boxes and Bandwidth Generously Provided by pair Networks
Syntactic Confectionery Delight
 
PerlMonks  

Re: Unique entries from an array

by Not_a_Number (Parson)
on Nov 07, 2009 at 20:07 UTC ( #805678=note: print w/ replies, xml ) Need Help??


in reply to Unique entries from an array

there may be several duplications...

Not enough information. Do you mean:

1 Duplicated names in the array? (eg dad_and_brittney.jpg occurs more than once?). In that case, pre-process your array to exclude such duplicates:

# Assume @all_pics to be your array my %seen; @all_pics = grep !$seen{$_}++, @all_pics;

2 You don't want to display a picture that has already been shown?

my $pic = splice @all_pics, rand @all_pics, 1;

3 You have duplicate pictures with different names? That's a whole 'nother problem...


Comment on Re: Unique entries from an array
Select or Download Code

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://805678]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others studying the Monastery: (7)
As of 2014-08-29 06:50 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    The best computer themed movie is:











    Results (276 votes), past polls