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$x = "I like dogs.";
$y = $x =~ s/dogs/cats/r;
print "$x $y\n"; # prints "I like dogs. I like cats."
Bareword found where operator expected at r.pl line 2, near "s/dogs/ca
syntax error at r.pl line 2, near "s/dogs/cats/r"
By rote learning.
Via Genetic memory.
It's provided by my firmware.
I just remember them.
Thirty days hath September
My computer gets it right, usually.
I just ask someone else.
Someone punches me on the first of the month.
Results (386 votes),