Ello, Why doesn't the "tr" work in the latter method? Thanks, Wits End 
#!/usr/bin/perl
# Perl 5.10.1 built for MSWin32-x86-multi-thread
# Count number each @check value occur in $string
# Two Methods: Long way (WORKS), Shorter way (PROBLEM)
        use strict;
        use warnings;
        my @check = ("A", "B");
        my $string = "2A 3B 4B";
    my $count;

    # how many times does "A" appear
        $count = $string =~ tr/A//;
    print "[A]: $count ";
    # how many times does "B" appear
        $count = $string =~ tr/B//;
    print "[B]: $count ";
    print "\n"; 
        # returns "[A]: 1 [B]: 2"      CORRECT

    # Shorten the above
    foreach ( @check ) {
            $count = $string =~ tr/$_//;
        print "[$_]: $count ";
        }
    print "\n"; 
        # returns "[A]: 0 [B]: 0"      INCORRECT

    # What is going on? Why doesn't the "tr" work?

    exit;
# FOOBAR

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In reply to Simple Matching by rnroot

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