And here's a complete run-able grep version with some tweaks. 

#!/usr/bin/perl

use strict; # https://perlmonks.org/?node_id=11158852
use warnings;

sub filterExclude
  {
  my ($ar, $someConfig) = @_ ;
  @$ar = grep {
    not exists ( $someConfig->{$_} ) && $someConfig->{ $_ }{ Exclude}
    } @$ar;
  }

my @ar = 1 .. 10;
my %config;
$config{$_}{Exclude}++ for 3, 8;

filterExclude( \@ar, \%config );

use Data::Dump 'dd'; dd { ar => \@ar, config => \%config };

[download]

which Outputs:

{
  ar => [1, 2, 4 .. 7, 9, 10],
  config => { 3 => { Exclude => 1 }, 8 => { Exclude => 1 } },
}

[download]

In reply to Re: How to use a splice inside a foreach by tybalt89
in thread How to use a splice inside a foreach by Veltro

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.