Everyone has left out Switch.pm. A gift from Damian (of course), it gives us the venerable "switch:case" ability from C.

use Switch;
 
   switch ($val) {
 
       case 1          { print "number 1" }
       case "a"        { print "string a" }
       case [1..10,42] { print "number in list" }
       case (@array)   { print "number in list" }
       case /\w+/      { print "pattern" }
       case qr/\w+/    { print "pattern" }
       case (%hash)    { print "entry in hash" }
       case (\%hash)   { print "entry in hash" }
       case (\&sub)    { print "arg to subroutine" }
       else            { print "previous case not true" }
    }
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What does this little button do . .<Click>; "USER HAS SIGNED OFF FOR THE DAY"