I program in a variety of languages and Perl has formed a big part of that during the last 12 years. The one thing that all other languages seem to lack is the native support for regex that Perl has. Perl also seems to give the best regex performance of any language. Regex is the swiss army knife of text processing, which is most of what we do when building web apps. I'd like to see all major web languages support regex natively like perl does including things like:

$str =~ s/([a-z])/$myFunc->($1)/ge;