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Postings from March 2002
I've heard that grep is fairly resource-intensive. Is there any truth to
the rumors? Is there a time where using grep will be faster than cycling
through an array?
-----Original Message-----
From: Wagner-David [mailto:Wagner-David@vikingfreight.com]
Sent: Friday, March 29, 2002 4:20 PM
To: 'Mahendra Thacker'
Cc: beginners@perl.org
Subject: RE: searching an array
Here is one shot:
#!perl -w
my $a = 5;
my @arr = qw( 7 9 3 6 5);
my @MyHits = grep(/$a/ , @arr );
if ( @MyHits ) {
print "Found $a in the list \n";
} else {
print "Did not find $a in the list\n";
}
Made minor changes: used warnings, my.
Wags ;)
-----Original Message-----
From: Mahendra Thacker [mailto:mnt_cal@snet.net]
Sent: Friday, March 29, 2002 16:09
To: beginners@perl.org
Subject: searching an array
Hi,
A question from a relative newbie.
How does one search an array of numbers for a number?
(without using foreach; is there any function?)
Say, I want to do something like this:
==
$a = 5;
@arr = ( 7 9 3 6 );
if ( seach( $a, @arr ) ) {
print "Found $a in the list \n";
} else {
print "Did not find $a in the list\n";
}
==
TIA,
Mahendra Thacker
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