Hi Monks

I have hash with three different values for 'cname' 1. 'Smart Parking' 2. 'Highview Parking' and 3. 'ParkingEye', based on the 'cname' need to group it with number count and 'balance' values added.

Please give me directions to achieve this. Thanks

#!/usr/bin/perl -w

use strict;
use warnings;

my $aref = [
          {
            'cname' => 'Smart Parking',
            'balance' => 10.12,
          },
          {
            'cname' => 'Smart Parking',
            'balance' => 10.22,
          },
          {
            'cname' => 'Smart Parking',
            'balance' => 10.32,
          },
          {
            'cname' => 'Highview Parking',
            'balance' => 20.12,
          },
          {
            'cname' => 'Highview Parking',
            'balance' => 20.22,
          },
          {
            'cname' => 'Highview Parking',
            'balance' => 20.32,
          },
                    {
            'cname' => 'Highview Parking',
            'balance' => 20.42,
          },
          {
            'cname' => 'ParkingEye',
            'balance' => 30.12,
          },
          {
            'cname' => 'ParkingEye',
            'balance' => 30.22,
          },
];

[download]

# Expected output 

$VAR1 = [
          {
            'cname' => 'Smart Parking',
            'balance' => '30.66',
            'total' => '3',
          },
          {
            'cname' => 'Highview Parking',
            'balance' => '81.08',
            'total' => '4',
          },
          {
            'cname' => 'ParkingEye',
            'balance' => '60.34',
            'total' => '2',
          }
];

[download]

Thank you so much

In reply to How to combine the values from hash using 'cname', along with total and balance. by Sami_R

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.