Beefy Boxes and Bandwidth Generously Provided by pair Networks
Perl-Sensitive Sunglasses
 
PerlMonks  

Re: using ref to hash of hash effectively

by Cristoforo (Curate)
on Dec 27, 2020 at 02:14 UTC ( #11125778=note: print w/replies, xml ) Need Help??


in reply to using ref to hash of hash effectively

To get the total sums of cost, damage, armor, you can use the map function to accumulate the various items.

#!/usr/bin/perl use strict; use warnings; use List::Util 'sum'; my $weapons_ref = { dagger => { cost => 8, damage => 4, armor => 0 }, shortsword => { cost => 10, damage => 5, armor => 0 }, warhammer => { cost => 25, damage => 6, armor => 0 }, longsword => { cost => 40, damage => 7, armor => 0 }, greataxe => { cost => 74, damage => 8, armor => 0 }, }; my $cost = sum(map $_->{cost}, values %$weapons_ref); my $damage = sum(map $_->{damage}, values %$weapons_ref); print "cost: $cost damage: $damage\n";

Prints:

cost: 157 damage: 30

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://11125778]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others exploiting the Monastery: (3)
As of 2021-06-19 23:54 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?
    What does the "s" stand for in "perls"? (Whence perls)












    Results (93 votes). Check out past polls.

    Notices?