Beefy Boxes and Bandwidth Generously Provided by pair Networks
Perl Monk, Perl Meditation

Re: Pulling random elements from hash

by George_Sherston (Vicar)
on Jun 22, 2003 at 21:17 UTC ( #267989=note: print w/replies, xml ) Need Help??

in reply to Pulling random elements from hash

Yet another way to do it:
print $hash{$_} for (sort {rand() <=> 0.5} keys %hash)

George Sherston

Replies are listed 'Best First'.
Re: Re: Pulling random elements from hash
by ihb (Deacon) on Jun 22, 2003 at 23:21 UTC
    Perlfunc / sort: The comparison function is required to behave. If it returns inconsistent results (sometimes saying $x[1] is less than $x[2] and sometimes saying the opposite, for example) the results are not well-defined.

    I guess that means you don't really know what your code will give you. (Which kind of seems to be the point of it, but in another way. :))

Re^2: Pulling random elements from hash
by Aristotle (Chancellor) on Jun 30, 2003 at 20:42 UTC

Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://267989]
and all is quiet...

How do I use this? | Other CB clients
Other Users?
Others contemplating the Monastery: (4)
As of 2018-02-25 02:48 GMT
Find Nodes?
    Voting Booth?
    When it is dark outside I am happiest to see ...

    Results (312 votes). Check out past polls.