Beefy Boxes and Bandwidth Generously Provided by pair Networks
There's more than one way to do things
 
PerlMonks  

Re^8: How A Technique Becomes Over-rated

by Anonymous Monk
on Sep 23, 2005 at 18:14 UTC ( #494619=note: print w/ replies, xml ) Need Help??


in reply to Re^7: How A Technique Becomes Over-rated
in thread How A Function Becomes Higher Order

But, by limiting your customization technique to callbacks, all shared state must be stored in the lexical scope of the caller.
($foo, $bar) = incrementByOneAndTwo(42); ($baz, $quux) = incrementByOneAndTwo(0); $\="\n"; print $foo->(); print $bar->(); print $quux->(); print $foo->(); print $baz->(); print $bar->(); print $quux->(); sub incrementByOneAndTwo { my $shared_state = shift; return (sub{$shared_state+=1}, sub{$shared_state+=2}); }


Comment on Re^8: How A Technique Becomes Over-rated
Download Code

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://494619]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others wandering the Monastery: (6)
As of 2015-05-30 23:25 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    In my home, the TV remote control is ...









    Results (601 votes), past polls