Perl equivalent of (Postgre)SQL BETWEEN operator?

Question

Is there such a thing? The equivalent of a <= expr <= b, or in SQL parlance expr BETWEEN a AND b, where expr is evaluated only once

Answer 1

There are a variety of ways to do that in Perl.

if( $a < $x and $x < $b ){ ... }
... if $a < $x and $x < $b;

use 5.10.1;
if( $x ~~ [$a..$b] ){ ... }

given( $x ){
  when( [$a..$b] ){ ... }
}

use 5.11.0; # development branch
given( $x ){
  ... when [$a..$b];
}