In Perl 6 we can use positive boolean context, which helps readability a little:
if ?$x == ?$y {...}
if ?$x != ?$y {...}
We can use junctions, which again helps the different case more than the same case:
if not $x ^ $y {...}
if $x ^ $y {...}
or if you prefer:
if !one($x,$y) {...}
if one($x,$y) {...}
That's probably enough ways to do it...
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