How do you use qr// precompiled regex with a short example?

keywords: Perl, regex, precompiled regex, qr//
description: This example demonstrates how to use precompiled regular expressions in Perl with the qr// operator.

Perl Example of Precompiled Regex

#!/usr/bin/perl use strict; use warnings; my $text = "Hello, World!"; # Precompiled regex using qr// my $pattern = qr/Hello/; if ($text =~ $pattern) { print "Match found!\n"; } else { print "No match.\n"; } ` wraps all the content together. - Inside, there are two divs: one for keywords and another for the description, as specified. - The Perl code demonstrating precompiled regex is included within a `` tag with syntax highlighting classes. This HTML code can be placed in a web page to illustrate the example clearly and organize the content effectively.

keywords: Perl regex precompiled regex qr//