Just create the operator: 
> multi sub infix:<=.> (Str $w1 is rw, Str $w2) { $w1 = $w2 ~ $w1;}
sub infix:<=.> (Str $w1 is rw, Str $w2) { #`(Sub+{Precedence}|14963240
+0) ... }
>
> my $c = "bar";
bar
> $c =. "foo";
foobar
> say $c;
foobar

[download]
Oh, but I forgot to say, this is Perl 6, of course.

Sorry about it, I couldn't resist. ;-)

In reply to Re: Reversed .= operator by Laurent_R
in thread Reversed .= operator by 1nickt

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